E Ericsson Internal TABLE OF CONTENTS Prepared (also subject responsible if other) SEC/S Stella Song Approved 1 (1) No. Checked BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W 001 52-EN/LZT 146 434 Uen Specification Technical Date 2012-10-30 Rev Reference C D EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Key Features * Small package Laydown: 21.0 x 12.7 x 8.2 mm (0.827 x 0.5 x 0.323 in) SIP: 20.8 x 7.6 x 15.6 mm (0.82 x 0.3 x 0.612 in) * 0.6 V - 5.0 V output voltage range * High efficiency, typ. 97.1% at 5Vin, 3.3Vout half load * Configuration and Monitoring via PMBus * Synchonization & phase spreading * Voltage Tracking & Voltage margining * MTBF 21.2 Mh General Characteristics Fully regulated For narrow board pitch applications (15 mm/0.6 in) Non-Linear Response for reduction of decoupling cap. Input under voltage shutdown Over temperature protection Output short-circuit & Output over voltage protection Remote control & Power Good Voltage setting via pin-strap or PMBus Advanced Configurable via Graphical Used Interface * ISO 9001/14001 certified supplier * Highly automated manufacturing ensures quality * * * * * * * * * Safety Approvals Design for Environment Meets requirements in hightemperature lead-free soldering processes. Contents Ordering Information General Information Safety Specification Absolute Maximum Ratings Electrical Specification 12A/ 0.6-5V Lay Down version and Power Good option ............................................................. 2 ............................................................. 2 ............................................................. 3 ............................................................. 4 12A/ 0.6-5V Single in Line version (SIP) BMR4620002 (TH) BMR4621002 (SMD) BMR4620006 (TH) BMR4621006 (SMD) ............................ 5 BMR4622002...................................... 13 EMC Specification Operating Information Thermal Consideration Connections Mechanical Information Soldering Information Delivery Information Product Qualification Specification ........................................................... 21 ........................................................... 21 ........................................................... 30 ........................................................... 31 ........................................................... 40 ........................................................... 43 ........................................................... 44 ........................................................... 46 E Technical Specification BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W 2 EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Ordering Information Product program BMR 462 Compatibility with RoHS requirements Output 0.6-5.0 V, 12 A / 60 W Product number and Packaging BMR 462 n1n2n3n4/n5n6n7n8 Options n1 n2 n3 n4 / n5 Mounting / Digital interface n7 n8 / Mechanical n6 Configuration file Packaging / / / Exemptions in the RoHS directive utilized in Ericsson Power Modules products are found in the Statement of Compliance document. Options Description n1 0 1 2 Through hole mount version (TH) Surface mount version (SMD) Single in line (SIP) n2 0 1 Standard mechanical option 5.5mm pin length (for SIP) 02 PMBus and analog pin strap, with Voltage Tracking Pin (Pin 4A) PMBus and analog pin strap, with Power Good Pin (Pin 4A) n3 n 4 06* n5 n 6 n 7 001 002 Standard configuration Negative logic n8 B C Antistatic tray of 100 products (SIP only) Antistatic tape & reel of 200 products (Sample delivery avalable in lower quantities. Not for SIP) Example: Product number BMR 462 0002/001C equals a through-hole mounted, open frame, PMBus and analog pin strap, voltage tracking pin at 4A, positive RC logic, standard configuration variant, package tape&reel Ericsson Power Modules fulfills and will continuously fulfill all its obligations under regulation (EC) No 1907/2006 concerning the registration, evaluation, authorization and restriction of chemicals (REACH) as they enter into force and is through product materials declarations preparing for the obligations to communicate information on substances in the products. Quality Statement The products are designed and manufactured in an industrial environment where quality systems and methods like ISO 9000, Six Sigma, and SPC are intensively in use to boost the continuous improvements strategy. Infant mortality or early failures in the products are screened out and they are subjected to an ATE-based final test. Conservative design rules, design reviews and product qualifications, plus the high competence of an engaged work force, contribute to the high quality of the products. Warranty Warranty period and conditions are defined in Ericsson Power Modules General Terms and Conditions of Sale. Limitation of Liability Note*: Only available on Lay-down series. General Information Reliability The failure rate () and mean time between failures (MTBF= 1/) is calculated at max output power and an operating ambient temperature (TA) of +40C. Ericsson Power Modules uses Telcordia SR-332 Issue 2 Method 1 to calculate the mean steady-state failure rate and standard deviation (). Telcordia SR-332 Issue 2 also provides techniques to estimate the upper confidence levels of failure rates based on the mean and standard deviation. Mean steady-state failure rate, 47 nFailures/h The products are compatible with the relevant clauses and requirements of the RoHS directive 2002/95/EC and have a maximum concentration value of 0.1% by weight in homogeneous materials for lead, mercury, hexavalent chromium, PBB and PBDE and of 0.01% by weight in homogeneous materials for cadmium. Std. deviation, 12.4 nFailures/h MTBF (mean value) for the BMR 462 series = 21.2 Mh. MTBF at 90% confidence level = 15.9 Mh Ericsson Power Modules does not make any other warranties, expressed or implied including any warranty of merchantability or fitness for a particular purpose (including, but not limited to, use in life support applications, where malfunctions of product can cause injury to a person's health or life). (c) Ericsson AB 2014 The information and specifications in this technical specification is believed to be correct at the time of publication. However, no liability is accepted for inaccuracies, printing errors or for any consequences thereof. Ericsson AB reserves the right to change the contents of this technical specification at any time without prior notice. E Technical Specification BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Safety Specification General information Ericsson Power Modules DC/DC converters and DC/DC regulators are designed in accordance with safety standards IEC/EN/UL 60950-1 Safety of Information Technology Equipment. IEC/EN/UL 60950-1 contains requirements to prevent injury or damage due to the following hazards: * * * * * * Electrical shock Energy hazards Fire Mechanical and heat hazards Radiation hazards Chemical hazards On-board DC/DC converters and DC/DC regulators are defined as component power supplies. As components they cannot fully comply with the provisions of any safety requirements without "Conditions of Acceptability". Clearance between conductors and between conductive parts of the component power supply and conductors on the board in the final product must meet the applicable safety requirements. Certain conditions of acceptability apply for component power supplies with limited stand-off (see Mechanical Information for further information). It is the responsibility of the installer to ensure that the final product housing these components complies with the requirements of all applicable safety standards and regulations for the final product. Component power supplies for general use should comply with the requirements in IEC 60950-1, EN 60950-1 and UL 60950-1 Safety of Information Technology Equipment. There are other more product related standards, e.g. IEEE 802.3 CSMA/CD (Ethernet) Access Method, and ETS-300132-2 Power supply interface at the input to telecommunications equipment, operated by direct current (dc), but all of these standards are based on IEC/EN/UL 60950-1 with regards to safety. Ericsson Power Modules DC/DC converters and DC/DC regulators are UL 60950-1 recognized and certified in accordance with EN 60950-1. The flammability rating for all construction parts of the products meet requirements for V-0 class material according to IEC 60695-11-10, Fire hazard testing, test flames - 50 W horizontal and vertical flame test methods. The products should be installed in the end-use equipment, in accordance with the requirements of the ultimate application. Normally the output of the DC/DC converter is considered as SELV (Safety Extra Low Voltage) and the input source must be isolated by minimum Double or Reinforced Insulation from the primary circuit (AC mains) in accordance with IEC/EN/UL 60950-1. 3 EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Isolated DC/DC converters It is recommended that a slow blow fuse is to be used at the input of each DC/DC converter. If an input filter is used in the circuit the fuse should be placed in front of the input filter. In the rare event of a component problem that imposes a short circuit on the input source, this fuse will provide the following functions: * * Isolate the fault from the input power source so as not to affect the operation of other parts of the system. Protect the distribution wiring from excessive current and power loss thus preventing hazardous overheating. The galvanic isolation is verified in an electric strength test. The test voltage (Viso) between input and output is 1500 Vdc or 2250 Vdc (refer to product specification). 24 V DC systems The input voltage to the DC/DC converter is SELV (Safety Extra Low Voltage) and the output remains SELV under normal and abnormal operating conditions. 48 and 60 V DC systems If the input voltage to the DC/DC converter is 75 Vdc or less, then the output remains SELV (Safety Extra Low Voltage) under normal and abnormal operating conditions. Single fault testing in the input power supply circuit should be performed with the DC/DC converter connected to demonstrate that the input voltage does not exceed 75 Vdc. If the input power source circuit is a DC power system, the source may be treated as a TNV-2 circuit and testing has demonstrated compliance with SELV limits in accordance with IEC/EN/UL60950-1. Non-isolated DC/DC regulators The input voltage to the DC/DC regulator is SELV (Safety Extra Low Voltage) and the output remains SELV under normal and abnormal operating conditions. Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia 1 (18) No. 2/1301-BMR 462Technical Uen Specification Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference 4 EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Absolute Maximum Ratings Characteristics min max Unit TP1 Operating temperature (see Thermal Consideration section) -40 typ 120 C TS Storage temperature -40 125 C VI Input voltage (See Operating Information Section for input and output voltage relations) -0.3 16 V Logic I/O voltage CTRL, SA0, SA1, SALERT, SCL, SDA, VSET, SYNC, GCB, PG -0.3 6.5 V Ground voltage differential -S, PREF, GND -0.3 0.3 V Analog pin voltage VO, +S, VTRK -0.3 6.5 V Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as no destruction limits, are normally tested with one parameter at a time exceeding the limits in the Electrical Specification. If exposed to stress above these limits, function and performance may degrade in an unspecified manner. Configuration File This product is designed with a digital control circuit. The control circuit uses a configuration file which determines the functionality and performance of the product. The Electrical Specification table shows parameter values of functionality and performance with the default configuration file, unless otherwise specified. The default configuration file is designed to fit most application need with focus on high efficiency. If different characteristics are required it is possible to change the configuration file to optimize certain performance characteristics. In this Technical specification examples are included to show the possibilities with digital control. See Operating Information section for information about trade offs when optimizing certain key performance characteristics. Fundamental Circuit Diagram Ci=22 F Co =100 F Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia 2/1301-BMR 462Technical Uen Specification Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Electrical Specification 2 (18) No. Rev Reference 5 EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB BMR 462 0002, BMR 462 1002, BMR 462 0006, BMR 462 1006 TP1 = -30 to +95C, VI = 4.5 to 14 V, VI > VO + 1.0 V Typical values given at: TP1 = +25C, VI = 12.0 V, max IO, unless otherwise specified under Conditions. Default configuration file, 190 10-CDA 102 0207/001. External CIN = 470 F/10 m, COUT = 470 F/10 m. See Operating Information section for selection of capacitor types. Sense pins are connected to the output pins. Characteristics VI Conditions Input voltage rise time Output voltage without pin strap Output voltage adjustment range Output voltage adjustment including margining Output voltage set-point resolution Output voltage accuracy VO Load regulation; IO = 0 - 100% VOac Output ripple & noise CO=470 F (minimum external capacitance). See Note 12 IO Output current IS Static input current at max IO Ilim Current limit threshold Short circuit current RMS, hiccup mode, See Note 3 50% of max IO Efficiency max IO Pd Pli max Unit 2.4 V/ms 0.60 Power dissipation at max IO Input idling power (no load) Default configuration: Continues Conduction Mode, CCM typ 5.0 V V 0.54 5.5 V 1.2 0.025 Including line, load, temp. See Note 15 -1 Internal resistance +S/-S to VOUT/GND Line regulation Isc min monotonic 1 4.7 2 2 2 3 3 2 2 2 20 30 60 100 VO = 0.6 V VO = 1.0 V VO = 3.3V VO = 5.0 V VO = 0.6 V VO = 1.0 V VO = 3.3V VO = 5.0 V VO = 0.6 V VO = 1.0 V VO = 3.3V VO = 5.0 V See Note 17 VO = 0.6 V VO = 1.0 V VO = 3.3V VO = 5.0 V % VO 0.001 mV mV mVp-p 12 0.76 1.17 3.53 4.1 14 8 6 5 4 VO = 0.6 V VO = 1.0 V VO = 3.3V VO = 5.0 V VO = 0.6 V VO = 1.0 V VO = 3.3V VO = 5.0 V VO = 0.6 V VO = 1.0 V VO =3.3V 82.6 88.5 94.7 95.7 78.5 85.4 93.6 94.9 2.05 2.11 2.66 VO = 5.0 V 3.15 VO = 0.6 V VO = 1.0 V VO = 3.3V VO = 5.0 V 0.33 0.35 0.56 0.99 A A 20 VO = 0.6 V VO = 1.0 V VO = 3.3V VO = 5.0 V % A A % % W W Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia PCTRL Ci Co COUT Vtr1 ttr1 fs Input standby power Date (MICRF) 2012-10-25 Conditions Turned off with CTRL-pin Internal input capacitance Internal output capacitance Total external output capacitance ESR range of capacitors (per single capacitor) Load transient peak voltage deviation Load step 25-75-25% of max IO Load transient recovery time, Note 5 Load step 25-75-25% of max IO Default configuration di/dt = 2 A/s CO=470 F (minimum external capacitance) see Note 13 Default configuration di/dt = 2 A/s CO=470 F (minimum external capacitance) see Note 13 Switching frequency Switching frequency range Switching frequency set-point accuracy Control Circuit PWM Duty Cycle Minimum Sync Pulse Width Synchronization Frequency Tolerance Input Under Voltage Lockout, UVLO Input Over Voltage Protection, IOVP Power Good, PG, See Note 2 Output voltage Over/Under Voltage Protection, OVP/UVP 2/1301-BMR 462Technical Uen Specification Checked Input 4.5-14 V, Output up to 12 A / 60 W Characteristics UVLO threshold UVLO threshold range Set point accuracy UVLO hysteresis UVLO hysteresis range Delay Fault response IOVP threshold IOVP threshold range Set point accuracy IOVP hysteresis IOVP hysteresis range Delay Fault response PG threshold PG hysteresis PG delay PG delay range UVP threshold UVP threshold range UVP hysteresis OVP threshold OVP threshold range UVP/OVP response time UVP/OVP response time range Fault response 3 (18) No. Rev Reference 6 EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB min Default configuration: Monitoring enabled, Precise timing enabled typ max Unit mW 180 22 100 F F See Note 10 300 7 500 F See Note 10 5 30 m VO = 0.6 V 55 VO = 1.0 V 65 VO = 3.3 V 110 VO = 5.0 V 190 VO = 0.6 V 230 VO = 1.0 V 210 VO = 3.3 V 200 VO =5.0 V 200 s 320 200-640 5 PMBus configurable External clock source mV 5 150 -13 95 13 3.85 3.85-14 PMBus configurable -150 150 0.35 0-10.15 PMBus configurable 2.5 See Note 3 Automatic restart, 70 ms 16 4.2-16 PMBus configurable -150 PMBus configurable 150 1 0-11.8 2.5 See Note 3 PMBus configurable PMBus configurable PMBus configurable PMBus configurable See Note 3 Automatic restart, 70 ms 90 5 10 0-500 85 0-100 5 115 100-115 25 5-60 Automatic restart, 70 ms kHz kHz % % ns % V V mV V V s V V mV V V s % VO % VO ms s % VO % VO % VO % VO % VO s s Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia Over Current Protection, OCP Over Temperature Protection, OTP at P1 See Note 9 VIL VIH IIL VOL VOH IOL IOH tset thold tfree Cp 2/1301-BMR 462Technical Uen Specification Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Characteristics Conditions OCP threshold OCP threshold range Protection delay, Protection delay range Fault response OTP threshold OTP threshold range OTP hysteresis OTP hysteresis range Fault response Logic input low threshold Logic input high threshold Logic input low sink current Logic output low Logic output high Logic output low sink current Logic output high source current Setup time, SMBus Hold time, SMBus Bus free time, SMBus Internal capacitance on logic pins Boot-up time Output Voltage Delay Time See Note 6 Delay accuracy turn-on Output Voltage Ramp Time See Note 14 Delay accuracy turn-off Ramp duration Ramp duration range Ramp time accuracy VTRK Input Bias Current VTRK Tracking Ramp Accuracy (VO - VVTRK) VTRK Regulation Accuracy (VO - VVTRK) B min READ_IOUT vs IO READ_IOUT vs IO typ max 18 0-18 5 1-32 Automatic restart, 70 ms 120 -40...+120 15 0-160 Automatic restart, 240 ms PMBus configurable See Note 3 Tsw Tsw C C C C 0.8 0.6 0.4 SYNC, SCL, SDA, SALERT, GCB, PG 2.25 See Note 1 See Note 1 See Note 1 300 250 2 4 2 10 PMBus configurable Default configuration: CTRL controlled Precise timing enabled PMBus controlled Precise timing disabled IO =0-12 A, TP1 = 0 to +95C VI = 12 V IO =0-12 A, TP1 = 0 to +95C VI = 4.5-14 V V V mA V V mA mA ns ns ms pF 35 10 2-500000 ms 0.25 ms -0.25/+4 ms -0.25/+4 ms ms 10 0-200 100 PMBus configurable Unit A A 2 CTRL VVTRK = 5.5 V 100% Tracking, see Note 8 100% Tracking 7 (c) Ericsson AB PMBus configurable SYNC, SA0, SA1, SCL, SDA, GCB, CTRL, VSET Reference EN/LZT 146 436 R3B August 2014 PMBus configurable See Note 4 PMBus configurable See Note 3 READ_VIN vs VI READ_VOUT vs VO Monitoring accuracy Rev See Note 11 Delay duration Delay duration range 4 (18) No. 110 -100 -1 ms s 200 100 1 A mV % 3 1 % % 1.6 A 2.7 A Note 1: See section I2C/SMBus Setup and Hold Times - Definitions. Note 2: Monitorable over PMBus Interface. Note 3: Automatic restart ~70 or 240 ms after fault if the fault is no longer present. Continuous restart attempts if the fault reappear after restart. See Operating Information and AN302 for other fault response options. Note 4: Tsw is the switching period. Note 5: Within +/-3% of VO Note 6: See section Soft-start Power Up. Note 8: Tracking functionality is designed to follow a VTRK signal with slewrate < 2.4V/ms. For faster VTRK signals accuracy will depend on the regulator bandwidth. Note 9: See section Over Temperature Protection (OTP). Note 10: See section External Capacitors. Note 11: See section Start-Up Procedure. Note 12: See graph Output Ripple vs External Capacitance and Operating information section Output Ripple and Noise. Note 13: See graph Load Transient vs. External Capacitance and Operating information section External Capacitors. Note 14: Time for reaching 100% of nominal Vout. Note 15: For Vout < 1.0V accuracy is +/-10 mV. For further deviations see section Output Voltage Adjust using PMBus. Note 17: Without minimum load the monitoring function will cause an output voltage of ~0.6 V when the output is disabled. This does not apply if Low Power mode is used. Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 5 (18) No. EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia 2/1301-BMR 462Technical Uen Specification Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference 8 EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Typical Characteristics Efficiency and Power Dissipation BMR 462 0002, BMR 462 1002 BMR 462 0006, BMR 462 1006 Efficiency vs. Output Current, VI=5 V Power Dissipation vs. Output Current, VI=5 V [%] 100 [W] 5 95 4 90 3 0.6 V 85 0.6 V 2 1.0 V 80 3.3 V 75 1.0 V 1 3.3 V 0 0 2 4 6 8 10 12 [A] 0 2 4 6 8 10 12 [A] Efficiency vs. load current and output voltage: TP1 = +25C. VI=5 V, fsw=320 kHz, CO=470 F/10 m. Dissipated power vs. load current and output voltage: TP1 = +25C. VI=5 V, fsw=320 kHz, CO=470 F/10 m. Efficiency vs. Output Current, VI=12 V Power Dissipation vs. Output Current, VI=12 V [%] 100 [W] 5 95 4 90 3 0,6 V 1,0 V 3,3 V 5,0 V 85 80 75 0,6 V 2 1,0 V 3,3 V 1 5,0 V 0 0 2 4 6 8 10 12 [A] 0 2 4 6 8 10 12 [A] Efficiency vs. load current and output voltage at TP1 = +25C. VI=12 V, fsw=320 kHz, CO=470 F/10 m. Dissipated power vs. load current and output voltage: TP1 = +25C. VI=12 V, fsw=320 kHz, CO=470 F/10 m. Efficiency vs. Output Current and Switch Frequency Power Dissipation vs. Output Current and Switch Frequency [%] 95 [W] 5 90 200 kHz 4 200 kHz 85 320 kHz 3 320 kHz 80 480 kHz 2 480 kHz 75 640 kHz 1 640 kHz 0 70 0 2 4 6 8 10 Efficiency vs. load current and switch frequency at TP1 = +25C. VI=12 V, VO=1.0 V, CO=470 F/10 m Default configuration except changed frequency. 12 [A] 0 2 4 6 8 10 Dissipated power vs. load current and switch frequency at TP1 = +25C. VI=12 V, VO=1.0 V, CO=470 F/10 m Default configuration except changed frequency. 12 [A] Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 6 (18) No. EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia 2/1301-BMR 462Technical Uen Specification Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference 9 EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Typical Characteristics Load Transient BMR 462 0002, BMR 462 1002 BMR 462 0006, BMR 462 1006 Load Transient vs. External Capacitance, VO=1.0 V Load Transient vs. External Capacitance, VO=3.3 V [mV] 200 [mV] 200 Default PID/NLR 150 Opt. PID, No NLR 100 Default PID, Opt. NLR 50 Opt. PID/NLR Default PID/NLR 150 Opt. PID, No NLR 100 Default PID, Opt. NLR 50 Opt. PID/NLR 0 0 0 1 2 3 4 0 5 [mF] 1 2 3 4 5 [mF] Load transient peak voltage deviation vs. external capacitance. Step-change (3-9-3 A). Parallel coupling of capacitors with 470 F/10 m, TP1 = +25C. VI=12 V, VO=1.0 V, fsw=320 kHz, di/dt=2 A/s Load transient peak voltage deviation vs. external capacitance. Step-change (3-9-3 A). Parallel coupling of capacitors with 470 F/10 m, TP1 = +25C. VI=12 V, VO=3.3 V, fsw=320 kHz, di/dt=2 A/s Load transient vs. Switch Frequency Output Load Transient Response, Default PID/NLR [mV] Default PID/NLR 180 Opt. PID, No NLR 150 120 Default PID, Opt. NLR Opt. PID/NLR 90 60 30 200 300 400 500 600 Load transient peak voltage deviation vs. frequency. Step-change (3-9-3 A). TP1 = +25C. VI=12 V, VO=3.3 V, CO=470 F/10 m [kHz] Output voltage response to load current step-change (3-9-3 A) at: TP1 = +25C, VI = 12 V, VO =3.3 V di/dt=2 A/s, fsw=320 kHz, CO=470 F/10 m Top trace: output voltage (200 mV/div.). Bottom trace: load current (5 A/div.). Time scale: (0.1 ms/div.). Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 7 (18) No. 2/1301-BMR 462Technical Uen Specification 10 EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Typical Characteristics Output Current Characteristic BMR 462 0002, BMR 462 1002 BMR 462 0006, BMR 462 1006 Output Current Derating, VO=0.6 V Output Current Derating, VO=1.0 V [A] 14 [A] 14 12 3.0 m/s 10 2.0 m/s 8 1.0 m/s 6 0.5 m/s 4 Nat. Conv. 2 12 3.0 m/s 10 2.0 m/s 8 1.0 m/s 6 0.5 m/s 4 Nat. Conv. 2 0 0 80 90 100 110 120 [C] 80 90 100 110 120 [C] Available load current vs. ambient air temperature and airflow at VO=0.6 V, VI = 12 V. See Thermal Consideration section. Available load current vs. ambient air temperature and airflow at VO=1.0 V, VI = 12 V. See Thermal Consideration section. Output Current Derating, VO=3.3 V Output Current Derating, VO=5.0 V [A] 14 [A] 14 12 3.0 m/s 10 2.0 m/s 8 12 1.0 m/s 6 0.5 m/s 4 2.0 m/s 8 1.0 m/s 6 3.0 m/s 10 0.5 m/s 4 Nat. Conv. Nat. Conv. 2 2 0 0 80 90 100 110 80 120 [C] 90 100 110 120 [C] Available load current vs. ambient air temperature and airflow at VO=5.0 V, VI = 12 V. See Thermal Consideration section. Available load current vs. ambient air temperature and airflow at VO=3.3 V, VI = 12 V. See Thermal Consideration section. Current Limit Characteristics, VO=1.0 V Current Limit Characteristics, VO=3.3 V [V] [V] 4 1.2 1.0 3 0.8 5V 0.6 12 V 14 V 0.4 5V 2 12 V 14 V 1 0.2 0 0.0 12 14 16 18 Output voltage vs. load current at TP1 = +25C. VO=1.0 V. 20 [A] 12 14 16 18 20 [A] Output voltage vs. load current at TP1 = +25C. VO=3.3 V. Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 8 (18) No. 2/1301-BMR 462Technical Uen Specification 11 EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Typical Characteristics Output Voltage BMR 462 0002, BMR 462 1002 BMR 462 0006, BMR 462 1006 Output Ripple & Noise, VO=1.0 V Output Ripple & Noise, VO=3.3 V Output voltage ripple at: Trace: output voltage (20 mV/div.). TP1 = +25C, VI = 12 V, CO=470 F/10 Time scale: (2 s/div.). m IO = 12 A Output voltage ripple at: Trace: output voltage (20 mV/div.). TP1 = +25C, VI = 12 V, CO=470 F/10 Time scale: (2 s/div.). m IO = 12 A Output Ripple vs. Input Voltage Output Ripple vs. Frequency [mVpk-pk] 90 [mVpk-pk] 160 80 140 70 120 60 0.6 V 50 1.0 V 40 3.3 V 30 5.0 V 20 0.6 V 100 1.0 V 80 3.3 V 60 5.0 V 40 20 10 0 5 7 9 11 0 200 [V] 13 250 300 350 400 450 500 550 600 [kHz] Output voltage ripple Vpk-pk at: TP1 = +25C, CO=470 F/10 m, IO =12 A. Output voltage ripple Vpk-pk at: TP1 = +25C, VI = 12 V, CO=470 F/10 m, IO = 12 A. Default configuration except changed frequency. Output Ripple vs. External Capacitance Load regulation, VO=3.3 V [mVpk-pk] 40 [V] 3.330 35 3.320 30 0.6 V 25 1.0 V 20 3,3 V 15 5V 10 4.5 V 3.310 5V 3.300 12 V 3.290 14 V 3.280 5 3.270 0 0 1 2 3 4 [mF] Output voltage ripple Vpk-pk at: TP1 = +25C, VI = 12 V. IO = 12 A. Parallel coupling of capacitors with 470 F/10 m, 0 2 4 6 8 10 12 [A] Load regulation at Vo=3.3 V at: TP1 = +25C, CO=470 F/10 m Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) No. EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia Date (MICRF) 2012-10-25 Typical Characteristics Start-up and shut-down Reference B (c) Ericsson AB Shut-down by input source Top trace: Input voltage (5 V/div.). Bottom trace: Output voltage (2 V/div.). Time scale: (20 ms/div.). Start-up by CTRL signal Start-up by enabling CTRL signal at: TP1 = +25C, VI = 12 V, VO = 3.3 V CO = 470 F/10 m, IO = 12 A Rev EN/LZT 146 436 R3B August 2014 BMR 462 0002, BMR 462 1002 BMR 462 0006, BMR 462 1006 Start-up by input source Start-up enabled by connecting VI at: TP1 = +25C, VI = 12 V, VO = 3.3 V CO = 470 F/10 m, IO = 12 A 2/1301-BMR 462Technical Uen Specification 12 Checked Input 4.5-14 V, Output up to 12 A / 60 W 9 (18) Shut-down enabled by disconnecting VI Top trace: Input voltage (5 V/div). at: Bottom trace: Output voltage (2 V/div.). TP1 = +25C, VI = 12 V, VO = 3.3 V Time scale: (2 ms/div.). CO = 470 F/10 m, IO = 12 A Shut-down by CTRL signal Top trace: output voltage (2 V/div.). Bottom trace: CTRL signal (2 V/div.). Time scale: (20 ms/div.). Shut-down enabled by disconnecting VI Top trace: output voltage (2 V/div). at: Bottom trace: CTRL signal (2 V/div.). TP1 = +25C, VI = 12 V, VO = 3.3 V Time scale: (2 ms/div.). CO = 470 F/10 m, IO = 12 A Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia 10 (18) No. 2/1301-BMR 462Technical Uen Specification 13 Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Electrical Specification BMR 462 2002 (SIP) TP1 = -30 to +95C, VI = 4.5 to 14 V, VI > VO + 1.0 V Typical values given at: TP1 = +25C, VI = 12.0 V, max IO, unless otherwise specified under Conditions. Default configuration file, 190 10-CDA 102 0260/001. External CIN = 470 F/10 m, COUT = 470 F/10 m. See Operating Information section for selection of capacitor types. Sense pins are connected to the output pins. Characteristics VI Conditions Input voltage rise time Output voltage without pin strap Output voltage adjustment range Output voltage adjustment including margining Output voltage set-point resolution Output voltage accuracy VO Load regulation; IO = 0 - 100% VOac Output ripple & noise CO=470 F (minimum external capacitance). See Note 12 IO Output current IS Static input current at max IO Ilim Current limit threshold Short circuit current RMS, hiccup mode, See Note 3 50% of max IO Efficiency max IO Pd Pli max Unit 2.4 V/ms 0.60 Power dissipation at max IO Input idling power (no load) Default configuration: Continues Conduction Mode, CCM typ 5.0 V V 0.54 5.5 V 1.2 0.025 Including line, load, temp. See Note 15 -1 Internal resistance +S/-S to VOUT/GND Line regulation Isc min monotonic 1 4.7 2 2 2 3 3 2 2 2 20 30 55 95 VO = 0.6 V VO = 1.0 V VO = 3.3 V VO = 5.0 V VO = 0.6 V VO = 1.0 V VO = 3.3 V VO = 5.0 V VO = 0.6 V VO = 1.0 V VO = 3.3 V VO = 5.0 V Note 17 VO = 0.6 V VO = 1.0 V VO = 3.3 V VO = 5.0 V % VO 0.001 mV mV mVp-p 12 0.75 1.21 3.55 4.1 14 8 6 5 4 VO = 0.6 V VO = 1.0 V VO = 3.3 V VO = 5.0 V VO = 0.6 V VO = 1.0 V VO = 3.3 V VO = 5.0 V VO = 0.6 V VO = 1.0 V VO = 3.3 V VO = 5.0 V 82.6 88.5 94.8 95.7 78.1 85.2 93.7 94.9 1.90 1.97 2.65 3.12 VO = 0.6 V VO = 1.0 V VO = 3.3 V VO = 5.0 V 0.36 0.35 0.54 0.97 A A 20 VO = 0.6 V VO = 1.0 V VO = 3.3 V VO = 5.0 V % A A % % W W Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia PCTRL Ci Co COUT Vtr1 ttr1 fs Input standby power Date (MICRF) 2012-10-25 Conditions Turned off with CTRL-pin Internal input capacitance Internal output capacitance Total external output capacitance ESR range of capacitors (per single capacitor) Load transient peak voltage deviation Load step 25-75-25% of max IO Load transient recovery time, Note 5 Load step 25-75-25% of max IO Default configuration di/dt = 2 A/s CO=470 F (minimum external capacitance) see Note 13 Default configuration di/dt = 2 A/s CO=470 F (minimum external capacitance) see Note 13 Switching frequency Switching frequency range Switching frequency set-point accuracy Control Circuit PWM Duty Cycle Minimum Sync Pulse Width Synchronization Frequency Tolerance Input Under Voltage Lockout, UVLO Input Over Voltage Protection, IOVP Power Good, PG, See Note 2 Output voltage Over/Under Voltage Protection, OVP/UVP 2/1301-BMR 462Technical Uen Specification 14 Checked Input 4.5-14 V, Output up to 12 A / 60 W Characteristics UVLO threshold UVLO threshold range Set point accuracy UVLO hysteresis UVLO hysteresis range Delay Fault response IOVP threshold IOVP threshold range Set point accuracy IOVP hysteresis IOVP hysteresis range Delay Fault response PG threshold PG hysteresis PG delay PG delay range UVP threshold UVP threshold range UVP hysteresis OVP threshold OVP threshold range UVP/OVP response time UVP/OVP response time range Fault response 11 (18) No. Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB min Default configuration: Monitoring enabled, Precise timing enabled typ max Unit mW 180 22 100 F F See Note 10 300 7 500 F See Note 10 5 30 m VO = 0.6 V 50 VO = 1.0 V 60 VO = 3.3 V 105 VO = 5.0 V 190 VO = 0.6 V 230 VO = 1.0 V 205 VO = 3.3 V 195 VO = 5.0 V 200 s 320 200-640 5 PMBus configurable External clock source mV 5 150 -13 95 13 3.85 3.85-14 PMBus configurable -150 150 0.35 0-10.15 PMBus configurable 2.5 See Note 3 Automatic restart, 70 ms 16 4.2-16 PMBus configurable -150 PMBus configurable 150 1 0-11.8 2.5 See Note 3 PMBus configurable PMBus configurable PMBus configurable PMBus configurable See Note 3 Automatic restart, 70 ms 90 5 10 0-500 85 0-100 5 115 100-115 25 5-60 Automatic restart, 70 ms kHz kHz % % ns % V V mV V V s V V mV V V s % VO % VO ms S % VO % VO % VO % VO % VO s s Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia Over Current Protection, OCP Over Temperature Protection, OTP at P1 See Note 9 VIL VIH IIL VOL VOH IOL IOH tset thold tfree Cp Date (MICRF) 2012-10-25 Conditions OCP threshold OCP threshold range Protection delay, Protection delay range Fault response OTP threshold OTP threshold range OTP hysteresis OTP hysteresis range Fault response Logic input low threshold Logic input high threshold Logic input low sink current Logic output low Logic output high Logic output low sink current Logic output high source current Setup time, SMBus Hold time, SMBus Bus free time, SMBus Internal capacitance on logic pins Boot-up time Output Voltage Ramp Time Delay accuracy turn-on Delay accuracy turn-off Ramp duration Ramp duration range Ramp time accuracy VTRK Input Bias Current VTRK Tracking Ramp Accuracy (VO - VVTRK) VTRK Regulation Accuracy (VO - VVTRK) (c) Ericsson AB min READ_IOUT vs IO READ_IOUT vs IO typ max 18 0-18 5 1-32 Automatic restart, 70 ms 120 -40...+120 15 0-160 Automatic restart, 240 ms PMBus configurable PMBus configurable See Note 3 SYNC, SA0, SA1, SCL, SDA, GCB, CTRL, VSET Reference B PMBus configurable See Note 4 PMBus configurable See Note 3 Tsw Tsw C C C C 0.8 0.6 0.4 SYNC, SCL, SDA, SALERT, GCB, PG 2.25 See Note 1 See Note 1 See Note 1 300 250 2 4 2 10 PMBus configurable Default configuration: CTRL controlled Precise timing enabled PMBus controlled Precise timing disabled VVTRK = 5.5 V 100% Tracking, see Note 8 100% Tracking IO =0-12 A, TP1 = 0 to +95C VI = 12 V IO =0-12 A, TP1 = 0 to +95C VI = 4.5-14 V V V mA V V mA mA ns ns ms pF 35 10 2-500000 ms 0.25 ms -0.25/+4 ms -0.25/+4 ms ms 10 0-200 100 PMBus configurable Unit A A 2 CTRL READ_VIN vs VI READ_VOUT vs VO Monitoring accuracy Rev EN/LZT 146 436 R3B August 2014 See Note 11 Delay duration Delay duration range Output Voltage Delay Time See Note 6 2/1301-BMR 462Technical Uen Specification 15 Checked Input 4.5-14 V, Output up to 12 A / 60 W Characteristics 12 (18) No. 110 -100 -1 ms s 200 100 1 A mV % 3 1 % % 1.6 A 2.7 A Note 1: See section I2C/SMBus Setup and Hold Times - Definitions. Note 2: Monitorable over PMBus Interface. Note 3: Automatic restart ~70 or 240 ms after fault if the fault is no longer present. Continuous restart attempts if the fault reappear after restart. See Operating Information and AN302 for other fault response options. Note 4: Tsw is the switching period. Note 5: Within +/-3% of VO Note 6: See section Soft-start Power Up. Note 8: Tracking functionality is designed to follow a VTRK signal with slewrate < 2.4V/ms. For faster VTRK signals accuracy will depend on the regulator bandwidth. Note 9: See section Over Temperature Protection (OTP). Note 10: See section External Capacitors. Note 11: See section Start-Up Procedure. Note 12: See graph Output Ripple vs External Capacitance and Operating information section Output Ripple and Noise. Note 13: See graph Load Transient vs. External Capacitance and Operating information section External Capacitors. Note 14: Time for reaching 100% of nominal Vout. Note 15: For Vout < 1.0V accuracy is +/-10 mV. For further deviations see section Output Voltage Adjust using PMBus. Note 17: Without minimum load the monitoring function will cause an output voltage of ~0.6 V when the output is disabled. This does not apply if Low Power mode is used. Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 13 (18) No. 2/1301-BMR 462Technical Uen Specification 16 EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Typical Characteristics Efficiency and Power Dissipation BMR 462 2002 (SIP) Efficiency vs. Output Current, VI=5 V Power Dissipation vs. Output Current, VI=5 V [%] 100 [W] 5 95 4 90 3 0.6 V 85 0.6 V 2 1.0 V 80 3.3 V 75 1.0 V 1 3.3 V 0 0 2 4 6 8 10 12 [A] 0 2 4 6 8 10 12 [A] Efficiency vs. load current and output voltage: TP1 = +25C. VI=5 V, fsw=320 kHz, CO=470 F/10 m. Dissipated power vs. load current and output voltage: TP1 = +25C. VI=5 V, fsw=320 kHz, CO=470 F/10 m. Efficiency vs. Output Current, VI=12 V Power Dissipation vs. Output Current, VI=12 V [W] 5 [%] 100 95 4 90 3 0,6 V 85 1,0 V 3,3 V 80 5,0 V 75 0,6 V 2 1,0 V 3,3 V 1 5,0 V 0 0 2 4 6 8 10 0 12 [A] 2 4 6 8 10 12 [A] Efficiency vs. load current and output voltage at TP1 = +25C. VI=12 V, fsw=320 kHz, CO=470 F/10 m. Dissipated power vs. load current and output voltage: TP1 = +25C. VI=12 V, fsw=320 kHz, CO=470 F/10 m. Efficiency vs. Output Current and Switch Frequency Power Dissipation vs. Output Current and Switch Frequency [%] 95 [W] 5 90 200 kHz 4 200 kHz 85 320 kHz 3 320 kHz 80 480 kHz 2 480 kHz 75 640 kHz 1 640 kHz 70 0 2 4 6 8 10 Efficiency vs. load current and switch frequency at TP1 = +25C. VI=12 V, VO=1.0 V, CO=470 F/10 m Default configuration except changed frequency 12 [A] 0 0 2 4 6 8 10 12 [A] Dissipated power vs. load current and switch frequency at TP1 = +25C. VI=12 V, VO=1.0 V, CO=470 F/10 m Default configuration except changed frequency Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 14 (18) No. EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia 2/1301-BMR 462Technical Uen Specification 17 Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Typical Characteristics Load Transient BMR 462 2002 (SIP) Load Transient vs. External Capacitance, VO=1.0 V [mV] 200 160 Default PID/NLR 120 Opt. PID, No NLR 80 Default PID, Opt. NLR 40 Opt. PID/NLR Load Transient vs. External Capacitance, VO=3.3 V [mV] 200 Default PID/NLR 150 Opt. PID, No NLR 100 Default PID, Opt. NLR 50 Opt. PID/NLR 0 0 0 1 2 3 4 0 5 [mF] 1 2 3 4 5 [mF] Load transient peak voltage deviation vs. external capacitance. Step-change (3-9-3 A). Parallel coupling of capacitors with 470 F/10 m, TP1 = +25C. VI=12 V, VO=1.0 V, fsw=320 kHz, di/dt=2 A/s Load transient peak voltage deviation vs. external capacitance. Step-change (3-9-3 A). Parallel coupling of capacitors with 470 F/10 m, TP1 = +25C. VI=12 V, VO=3.3 V, fsw=320 kHz, di/dt=2 A/s Load transient vs. Switch Frequency Output Load Transient Response, Default PID/NLR [mV] 200 160 Default PID/NLR 120 Opt. PID, No NLR 80 Default PID, Opt. NLR 40 Opt. PID/NLR 0 200 300 400 500 600 [kHz] Load transient peak voltage deviation vs. frequency. Step-change (3-9-3 A). TP1 = +25C. VI=12 V, VO=3.3 V, CO=470 F/10 m Output voltage response to load current step-change (3-9-3 A) at: TP1 = +25C, VI = 12 V, VO =3.3 V di/dt=2 A/s, fsw=320 kHz, CO=470 F/10 m Top trace: output voltage (200 mV/div.). Bottom trace: load current (10 A/div.). Time scale: (0.1 ms/div.). Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 15 (18) No. 2/1301-BMR 462Technical Uen Specification 18 EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Typical Characteristics Output Current Characteristic BMR 462 2002 (SIP) Output Current Derating, VO=0.6 V Output Current Derating, VO=1.0 V [A] 14 [A] 14 12 3.0 m/s 10 2.0 m/s 8 12 0.5 m/s 4 Nat. Conv. 2 1.0 m/s 6 0.5 m/s 4 2.0 m/s 8 1.0 m/s 6 3.0 m/s 10 Nat. Conv. 2 0 0 80 90 100 110 120 [C] 80 90 100 110 120 [C] Available load current vs. ambient air temperature and airflow at VO=0.6 V, VI = 12 V. See Thermal Consideration section. Available load current vs. ambient air temperature and airflow at VO=1.0 V, VI = 12 V. See Thermal Consideration section. Output Current Derating, VO=3.3 V Output Current Derating, VO=5.0 V [A] 14 [A] 14 12 3.0 m/s 10 2.0 m/s 8 12 1.0 m/s 6 0.5 m/s 4 2.0 m/s 8 1.0 m/s 6 3.0 m/s 10 0.5 m/s 4 Nat. Conv. 2 Nat. Conv. 2 0 0 80 90 100 110 80 120 [C] 90 100 110 120 [C] Available load current vs. ambient air temperature and airflow at VO=5.0 V, VI = 12 V. See Thermal Consideration section. Available load current vs. ambient air temperature and airflow at VO=3.3 V, VI = 12 V. See Thermal Consideration section. Current Limit Characteristics, VO=1.0 V Current Limit Characteristics, VO=3.3 V [V] [V] 4 1.2 1.0 3 0.8 5V 0.6 12 V 5V 2 12 V 14 V 0.4 14 V 1 0.2 0 0.0 12 13 14 15 16 17 18 19 20 [A] Output voltage vs. load current at TP1 = +25C. VO=1.0 V. 12 13 14 15 16 17 18 19 20 [A] Output voltage vs. load current at TP1 = +25C. VO=3.3 V. Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 16 (18) No. 2/1301-BMR 462Technical Uen Specification 19 EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Typical Characteristics Output Voltage BMR 462 2002 (SIP) Output Ripple & Noise, VO=1.0 V Output Ripple & Noise, VO=3.3 V Output voltage ripple at: TP1 = +25C, Trace: output voltage (10 mV/div.). VI = 12 V, CO=470 F/10 m Time scale: (2 s/div.). IO = 12 A Output voltage ripple at: TP1 = +25C, Trace: output voltage (10 mV/div.). VI = 12 V, CO=470 F/10 m Time scale: (2 s/div.). IO = 12 A Output Ripple vs. Input Voltage Output Ripple vs. Frequency [mVpk-pk] [mVpk-pk] 160 80 70 140 0.6 V 60 1.0 V 50 3.3 V 40 5.0 V 30 120 0.6 V 100 1.0 V 80 3.3 V 60 5.0 V 40 20 20 10 0 5 7 9 11 0 200 [V] 13 250 300 350 400 450 500 550 600 [kHz] Output voltage ripple Vpk-pk at: TP1 = +25C, CO=470 F/10 m, IO = 12 A. Output voltage ripple Vpk-pk at: TP1 = +25C, VI = 12 V, CO=470 F/10 m, IO = 12 A. Default configuration except changed frequency. Output Ripple vs. External Capacitance Load regulation, VO=3.3 V [mVpk-pk] 40 [V] 3.330 35 3.320 30 0.6 V 25 1.0 V 20 15 3,3 V 10 5V 4.5 V 3.310 5V 3.300 12 V 3.290 14 V 3.280 5 3.270 0 0 1 2 3 4 [mF] Output voltage ripple Vpk-pk at: TP1 = +25C, VI = 12 V. IO = 12 A. Parallel coupling of capacitors with 470 F/10 m, 0 2 4 6 8 10 12 [A] Load regulation at Vo=3.3 V at: TP1 = +25C, CO=470 F/10 m Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EAB/FJB/GM QLAANDR Approved BMR462 series PoLHarrisen) Regulators EAB/FJB/GMF (Ksenia 2/1301-BMR 462Technical Uen Specification 20 Checked Date (MICRF) 2012-10-25 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Typical Characteristics Start-up and shut-down BMR 462 2002 (SIP) Start-up by input source Start-up enabled by connecting VI at: TP1 = +25C, VI = 12 V, VO = 3.3 V CO = 470 F/10 m, IO = 12 A 17 (18) No. Shut-down by input source Top trace: Input voltage (5 V/div.). Bottom trace: Output voltage (2 V/div.). Time scale: (20 ms/div.). Shut-down enabled by disconnecting VI Top trace: Input voltage (5 V/div). at: Bottom trace: Output voltage (2 V/div.). TP1 = +25C, VI = 12 V, VO = 3.3 V Time scale: (2 ms/div.). CO = 470 F/10 m, IO = 12 A Start-up by CTRL signal Shut-down by CTRL signal Start-up enabled by connecting VI at:: Top trace: output voltage (2 V/div.). TP1 = +25C, VI = 12 V, VO = 3.3 V Bottom trace: CTRL signal (2 V/div.). CO = 470 F/10 m, IO = 12 A Time scale: (20 ms/div.). Shut-down enabled by disconnecting VI Top trace: output voltage (2 V/div). at: Bottom trace: CTRL signal (2 V/div.). TP1 = +25C, VI = 12 V, VO = 3.3 V Time scale: (2 ms/div.). CO = 470 F/10 m, IO = 12 A E Technical Specification 21 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W EMC Specification Conducted EMI measured according to test set-up below. The fundamental switching frequency is 320 kHz at VI = 12 V, max Io. EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Output Ripple and Noise Output ripple and noise is measured according to figure below. A 50 mm conductor works as a small inductor forming together with the two capacitances a damped filter. Conducted EMI Input terminal value (typical for default configuration) +S -S 50 mm conductor Tantalum Capacitor Output 10 F Capacitor 470 F//10 m GND Ceramic Capacitor 0.1 F Load Vout 50 mm conductor BNC-contact to oscilloscope Output ripple and noise test set-up. Operating information EMI without filter To spectrum analyzer Battery supply RF Current probe 1kHz - 50MHz Resistive load C1 POL 50mm C1 = 10uF / 600VDC Feed- Thru RF capacitor 800mm 200mm Conducted EMI test set-up Layout Recommendations The radiated EMI performance of the product will depend on the PWB layout and ground layer design. It is also important to consider the stand-off of the product. If a ground layer is used, it should be connected to the output of the product and the equipment ground or chassis. A ground layer will increase the stray capacitance in the PWB and improve the high frequency EMC performance. Power Management Overview This product is equipped with a PMBus interface. The product incorporates a wide range of readable and configurable power management features that are simple to implement with a minimum of external components. Additionally, the product includes protection features that continuously safeguard the load from damage due to unexpected system faults. A fault is also shown as an alert on the SALERT pin. The following product parameters can continuously be monitored by a host: Input voltage, output voltage/current, and internal temperature. If the monitoring is not needed it can be disabled and the product enters a low power mode reducing the power consumption. The protection features are not affected. The product is delivered with a default configuration suitable for a wide range operation in terms of input voltage, output voltage, and load. The configuration is stored in an internal Non-Volatile Memory (NVM). All power management functions can be reconfigured using the PMBus interface. Please contact your local Ericsson Power Modules representative for design support of custom configurations or appropriate SW tools for design and down-load of your own configurations. Input Voltage The input voltage range, 4.5 - 14 V, makes the product easy to use in intermediate bus applications when powered by a non-regulated bus converter or a regulated bus converter. See Ordering Information for input voltage range. Input Under Voltage Lockout, UVLO The product monitors the input voltage and will turn-on and turn-off at configured levels. The default turn-on input voltage level setting is 4.20 V, whereas the corresponding turn-off input voltage level is 3.85 V. Hence, the default hysteresis between turn-on and turn-off input voltage is 0.35 V. Once an input turn- E Technical Specification 22 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W off condition occurs, the device can respond in a number of ways as follows: 1. Continue operating without interruption. The unit will continue to operate as long as the input voltage can be supported. If the input voltage continues to fall, there will come a point where the unit will cease to operate. 2. Continue operating for a given delay period, followed by shutdown if the fault still exists. The device will remain in shutdown until instructed to restart. 3. Initiate an immediate shutdown until the fault has been cleared. The user can select a specific number of retry attempts. The default response from a turn-off is an immediate shutdown of the device. The device will continuously check for the presence of the fault condition. If the fault condition is no longer present, the product will be re-enabled. The turn-on and turn-off levels and response can be reconfigured using the PMBus interface. Remote Control Vext CTRL GND The product is equipped with a remote control function, i.e., the CTRL pin. The remote control can be connected to either the primary negative input connection (GND) or an external voltage (Vext), which is a 3 - 5 V positive supply voltage in accordance to the SMBus Specification version 2.0. The CTRL function allows the product to be turned on/off by an external device like a semiconductor or mechanical switch. By default the product will turn on when the CTRL pin is left open and turn off when the CTRL pin is applied to GND. The CTRL pin has an internal pull-up resistor. When the CTRL pin is left open, the voltage generated on the CTRL pin is max 5.5 V. If the device is to be synchronized to an external clock source, the clock frequency must be stable prior to asserting the CTRL pin. The product can also be configured using the PMBus interface to be "Always on", or turn on/off can be performed with PMBus commands. Input and Output Impedance The impedance of both the input source and the load will interact with the impedance of the product. It is important that the input source has low characteristic impedance. The performance in some applications can be enhanced by addition of external capacitance as described under External Decoupling Capacitors. If the input voltage source contains significant inductance, the addition a capacitor with low ESR at the input of the product will ensure stable operation. External Capacitors Input capacitors: The input ripple RMS current in a buck converter is equal to EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Eq. 1. I inputRMS = I load D(1 - D ) , where I load is the output load current and D is the duty cycle. The maximum load ripple current becomes I load 2 . The ripple current is divided into three parts, i.e., currents in the input source, external input capacitor, and internal input capacitor. How the current is divided depends on the impedance of the input source, ESR and capacitance values in the capacitors. A minimum capacitance of 300 F with low ESR is recommended. The ripple current rating of the capacitors must follow Eq. 1. For high-performance/transient applications or wherever the input source performance is degraded, additional low ESR ceramic type capacitors at the input is recommended. The additional input low ESR capacitance above the minimum level insures an optimized performance. Output capacitors: When powering loads with significant dynamic current requirements, the voltage regulation at the point of load can be improved by addition of decoupling capacitors at the load. The most effective technique is to locate low ESR ceramic and electrolytic capacitors as close to the load as possible, using several capacitors in parallel to lower the effective ESR. The ceramic capacitors will handle high-frequency dynamic load changes while the electrolytic capacitors are used to handle low frequency dynamic load changes. Ceramic capacitors will also reduce high frequency noise at the load. It is equally important to use low resistance and low inductance PWB layouts and cabling. External decoupling capacitors are a part of the control loop of the product and may affect the stability margins. Stable operation is guaranteed for the following total capacitance CO in the output decoupling capacitor bank where Eq. 2. C O = [C min , C max ] = [300, 7500] F. The decoupling capacitor bank should consist of capacitors which have a capacitance value larger than C C min and has an ESR range of Eq. 3. ESR = [ESRmin , ESRmax ] = [5, 30] m The control loop stability margins are limited by the minimum time constant min of the capacitors. Hence, the time constant of the capacitors should follow Eq. 4. Eq. 4. min = Cmin ESRmin = 1.5 s This relation can be used if your preferred capacitors have parameters outside the above stated ranges in Eq. 2 and Eq.3. * If the capacitors capacitance value is C < C min one must use at least N capacitors where C C N min and ESR ESRmin min . C C * If the ESR value is ESR > ESRmax one must use at least N capacitors of that type where E Technical Specification 23 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W ESR C min . N and C N ESR max * If the ESR value is ESR < ESRmin the capacitance value should be ESRmin C C min . ESR For a total capacitance outside the above stated range or capacitors that do not follow the stated above requirements above a re-design of the control loop parameters will be necessary for robust dynamic operation and stability. See application note AN311 for further information. Control Loop Compensation The product is configured with a robust control loop compensation which allows for a wide range operation of input and output voltages and capacitive loads as defined in the section External Decoupling Capacitors. For an application with a specific input voltage, output voltage, and capacitive load, the control loop can be optimized for a robust and stable operation and with an improved load transient response. This optimization will minimize the amount of required output decoupling capacitors for a given load transient requirement yielding an optimized cost and minimized board space. The control loop parameters can be reconfigured using the PMBus interface. See application note AN305 for further information. Load Transient Response Optimization The product incorporates a Non-Linear transient Response, NLR, loop that decreases the response time and the output voltage deviation during a load transient. The NLR results in a higher equivalent loop bandwidth than is possible using a traditional linear control loop. The product is pre-configured with appropriate NLR settings for robust and stable operation for a wide range of input voltage and a capacitive load range as defined in the section External Decoupling Capacitors. For an application with a specific input voltage, output voltage, and capacitive load, the NLR configuration can be optimized for a robust and stable operation and with an improved load transient response. This will also reduce the amount of output decoupling capacitors and yield a reduced cost. However, the NLR slightly reduces the efficiency. In order to obtain maximal energy efficiency the load transient requirement has to be met by the standard control loop compensation and the decoupling capacitors. The NLR settings can be reconfigured using the PMBus interface. See application note AN306 for further information. Remote Sense The product has remote sense that can be used to compensate for voltage drops between the output and the point of load. The sense traces should be located close to the PWB ground layer to reduce noise susceptibility. Due to derating of internal output capacitance the voltage drop should be kept below VDROPMAX = (5.5 - VOUT ) / 2 . A large voltage drop will impact the electrical performance of the regulator. If EN/LZT 146 436 R3B August 2014 (c) Ericsson AB the remote sense is not needed +S should be connected to VOUT and -S should be connected to GND. Output Voltage Adjust using Pin-strap Resistor Using an external Pin-strap resistor, R SET , the output voltage can be set in the VSET range 0.6 V to 3.3 V at 28 RSET different levels shown in the PREF table below. The resistor should be applied between the VSET pin and the PREF pin. R SET also sets the maximum output voltage, see section "Output Voltage Range Limitation". The resistor is sensed only during product start-up. Changing the resistor value during normal operation will not change the output voltage. The input voltage must be at least 1 V larger than the output voltage in order to deliver the correct output voltage. See Ordering Information for output voltage range. The following table shows recommended resistor values for R SET . Maximum 1% tolerance resistors are required. V OUT [V] R SET [k] V OUT [V] R SET [k] 0.60 10 1.50 46.4 0.65 11 1.60 51.1 0.70 12.1 1.70 56.2 0.75 13.3 1.80 61.9 0.80 14.7 1.90 68.1 0.85 16.2 2.00 75 0.90 17.8 2.10 82.5 0.95 19.6 2.20 90.9 1.00 21.5 2.30 100 1.05 23.7 2.50 110 1.10 26.1 3.00 121 1.15 28.7 3.30 133 1.20 31.6 4.00 147 1.25 34.8 5.00 162 1.30 38.3 5.50 178 1.40 42.2 The output voltage and the maximum output voltage can be pin strapped to three fixed values by connecting the VSET pin according to the table below. V OUT [V] VSET 0.60 Shorted to PREF 1.2 Open "high impedance" 2.5 Logic High, GND as reference E Technical Specification 24 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Output Voltage Adjust using PMBus The output voltage set by pin-strap can be overridden by configuration file or by using a PMBus command. See Electrical Specification for adjustment range. When setting the output voltage by configuration file or by a PMBus command, the specified output voltage accuracy is valid only when the set output voltage level falls within the same bin range as the voltage level defined by the pin-strap resistor R SET . The applicable bin ranges are defined in the table below. Valid accuracy for voltage levels outside the applicable bin range is two times the specified. Example: Nominal Vout is set to 1.10V by Rset=26.1kohm. 1.10V falls within the bin range 0.988-1.383V, thus specified accuracy is valid when adjusting Vout within 0.988-1.383V. V OUT bin ranges [V] 0 - 0.988 0.988 - 1.383 1.383 - 1.975 1.975 - 2.398 2.398 - 2.963 2.963 - 3.753 3.753 - 4.938 4.938 - Output Voltage Range Limitation The output voltage range that is possible to set by configuration or by the PMBus interface is limited by the pinstrap resistor R SET. The maximum output voltage is set to 110% of the nominal output value defined by R SET , VOUT _ MAX = 1.1 x VOUT _ RSET . This protects the load from an over voltage due to an accidental wrong PMBus command. Over Voltage Protection (OVP) The product includes over voltage limiting circuitry for protection of the load. The default OVP limit is 15% above the nominal output voltage. If the output voltage exceeds the OVP limit, the product can respond in different ways: 1. Initiate an immediate shutdown until the fault has been cleared. The user can select a specific number of retry attempts. 2. Turn off the high-side MOSFET and turn on the low-side MOSFET. The low-side MOSFET remains ON until the device attempts a restart, i.e. the output voltage is pulled to ground level (crowbar function). The default response from an overvoltage fault is to immediately shut down as in 2. The device will continuously check for the presence of the fault condition, and when the fault condition no longer exists the device will be re-enabled. For continuous OVP when operating from an external clock for EN/LZT 146 436 R3B August 2014 (c) Ericsson AB synchronization, the only allowed response is an immediate shutdown. The OVP limit and fault response can be reconfigured using the PMBus interface. Under Voltage Protection (UVP) The product includes output under voltage limiting circuitry for protection of the load. The default UVP limit is 15% below the nominal output voltage. The UVP limit can be reconfigured using the PMBus interface. Power Good The product provides a Power Good (PG) flag in the Status Word register that indicates the output voltage is within a specified tolerance of its target level and no fault condition exists. If specified in section Connections, the product also provides a PG signal output. The PG pin is active high and by default open-drain but may also be configured as push-pull via the PMBus interface. By default, the PG signal will be asserted when the output reaches above 90% of the nominal voltage, and de-asserted when the output falls below 85% of the nominal voltage. These limits may be changed via the PMBus interface. A PG delay period is defined as the time from when all conditions within the product for asserting PG are met to when the PG signal is actually asserted. The default PG delay is set to 10 ms. This value can be reconfigured using the PMBus interface Switching Frequency The fundamental switching frequency is 320 kHz, which yields optimal power efficiency. The switching frequency can be set to any value between 200 kHz and 640 kHz using the PMBus interface. The switching frequency will change the efficiency/power dissipation, load transient response and output ripple. For optimal control loop performance the control loop must be re-designed when changing the switching frequency. Synchronization Synchronization is a feature that allows multiple products to be synchronized to a common frequency. Synchronized products powered from the same bus eliminate beat frequencies reflected back to the input supply, and also reduces EMI filtering requirements. Eliminating the slow beat frequencies (usually <10 kHz) allows the EMI filter to be designed to attenuate only the synchronization frequency. Synchronization can also be utilized for phase spreading, described in section Phase Spreading. The products can be synchronized with an external oscillator or one product can be configured with the SYNC pin as a SYNC Output working as a master driving the synchronization. All others on the same synchronization bus should be configured with SYNC Input or SYNC Auto Detect (Default configuration) for correct operation. When the SYNC pin is configured in auto detect mode the product will automatically check for a clock signal on the SYNC pin. See application note AN309 for further information. E Technical Specification 25 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Phase Spreading When multiple products share a common DC input supply, spreading of the switching clock phase between the products can be utilized. This dramatically reduces input capacitance requirements and efficiency losses, since the peak current drawn from the input supply is effectively spread out over the whole switch period. This requires that the products are synchronized. Up to 16 different phases can be used. The phase spreading of the product can be configured using the PMBus interface. See application note AN309 for further information. Adaptive Diode Emulation Most power converters use synchronous rectification to optimize efficiency over a wide range of input and output conditions. However, at light loads the synchronous MOSFET will typically sink current and introduce additional energy losses associated with higher peak inductor currents, resulting in reduced efficiency. Adaptive diode emulation mode turns off the low-side FET gate drive at low load currents to prevent the inductor current from going negative, reducing the energy losses and increasing overall efficiency. Diode emulation is not available for current sharing groups. Note: the overall bandwidth of the product may be reduced when in diode emulation mode. It is recommended that diode emulation is disabled prior to applying significant load steps. The diode emulation mode can be configured using the PMBus interface. Adaptive Frequency and Pulse Skip Control Since switching losses contribute to the efficiency of the power converter, reducing the switching frequency will reduce the switching losses and increase efficiency. The product includes an Adaptive Frequency Control mode, which effectively reduces the observed switching frequency as the load decreases. Adaptive frequency mode is only available while the device is operating within Adaptive Diode Emulation Mode. As the load current is decreased, diode emulation mode decreases the Synch-FET on-time to prevent negative inductor current from flowing. As the load is decreased further, the Switch-FET pulse width will begin to decrease while maintaining the programmed frequency, f PROG (set by the FREQ_SWITCH command). Once the Switch-FET pulse width (D) reaches 50% of the nominal duty cycle, D NOM (determined by V I and V O ), the switching frequency will start to decrease according to the following equation: Eq. 5. f sw 2( f PROG - f MIN ) + f MIN . = D D NOM Disabling a minimum Synch-FET makes the product also pulse skip which reduces the power loss further. It should be noted that adaptive frequency mode is not available for current sharing groups and is not allowed when the device is placed in auto-detect mode and a clock source is present on the SYNC pin, or if the device is outputting a clock signal on its SYNC pin. The adaptive frequency and pulse skip modes can be configured using the PMBus interface. EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Efficiency Optimized Dead Time Control The product utilizes a closed loop algorithm to optimize the dead-time applied between the gate drive signals for the switch and synch FETs. The algorithm constantly adjusts the deadtime non-overlap to minimize the duty cycle, thus maximizing efficiency. This algorithm will null out deadtime differences due to component variation, temperature and loading effects. The algorithm can be configured via the PMBus interface. Over Current Protection (OCP) The product includes current limiting circuitry for protection at continuous overload. The following OCP response options are available: 1. Initiate a shutdown and attempt to restart an infinite number of times with a preset delay period between attempts. 2. Initiate a shutdown and attempt to restart a preset number of times with a preset delay period 3. Continue operating for a given delay period, followed by shutdown if the fault still exists. 4. Continue operating through the fault (this could result in permanent damage to the product). 5. Initiate an immediate shutdown. The default response from an over current fault is an immediate shutdown of the device. The device will continuously check for the presence of the fault condition, and if the fault condition no longer exists the device will be reenabled.The load distribution should be designed for the maximum output short circuit current specified. The OCP limit and response of the product can be reconfigured using the PMBus interface. Start-up Procedure The product follows a specific internal start-up procedure after power is applied to the VIN pin: 1. Status of the address and output voltage pin-strap pins are checked and values associated with the pin settings are loaded. 2. Values stored in the Ericsson default non-volatile memory are loaded. This overwrites any previously loaded values. 3. Values stored in the user non-volatile memory are loaded. This overwrites any previously loaded values. Once this process is completed and the start-up time has passed (see Electrical Specification), the product is ready to be enabled using the CTRL pin. The product is also ready to accept commands via the PMBus interface, which will overwrite any values loaded during the start-up procedure. E Technical Specification 26 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Soft-start Power Up The soft-start control introduces a time-delay before allowing the output voltage to rise. Once the boot-up time has passed and the output has been enabled, the device requires approximately 2 ms before its output voltage may be allowed to start its ramp-up process. If a soft-start delay period less than 2 ms has been configured the device will default to a 2 ms delay period. If a delay period greater than 2 ms is configured, the device will wait for the configured delay period prior to starting to ramp its output. After the delay period has expired, the output will begin to ramp towards its target voltage according to the configured soft-start ramp time. The default settings for the soft-start delay period and the softstart ramp time is 10 ms. Hence, power-up is completed within 20 ms in default configuration using remote control. Precise timing reduces the delay time variations and is by default activated. The soft-start power up of the product can be reconfigured using the PMBus interface. EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Voltage Tracking The product integrates a lossless tracking scheme that allows its output to track a voltage that is applied to the VTRK pin with no external components required. During ramp-up, the output voltage follows the VTRK voltage until the preset output voltage level is met. The product offers two modes of tracking as follows: 1. Coincident. This mode configures the product to ramp its output voltage at the same rate as the voltage applied to the VTRK pin. VIN CTRL Illustration of Coincident Voltage Tracking. VOUT Boot-up time Delay time Ramp time Illustration of Power Up Procedure. 2. Ratiometric. This mode configures the product to ramp its output voltage at a rate that is a percentage of the voltage applied to the VTRK pin. The default setting is 50%, but a different tracking ratio may be set by an external resistive voltage divider or through the PMBus interface. Output Voltage Sequencing A group of products may be configured to power up in a predetermined sequence. This feature is especially useful when powering advanced processors, FPGAs, and ASICs that require one supply to reach its operating voltage prior to another. Multi-product sequencing can be achieved by configuring the start delay and rise time of each device through the PMBus interface and by using the CTRL start signal. See application note AN310 for further information. Illustration of Ratiometric Voltage Tracking Illustration of Output Voltage Sequencing. The master device in a tracking group is defined as the device that has the highest target output voltage within the group. This master device will control the ramp rate of all tracking devices and is not configured for tracking mode. All of the CTRL pins in the tracking group must be connected and driven by a single logic source. It should be noted that current sharing groups that are also configured to track another voltage do not offer pre-bias protection; a minimum load should therefore be enforced to avoid the output voltage from being held up by an outside force. See application note AN310 for further information. E Technical Specification 27 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Voltage Margining Up/Down The product can adjust its output higher or lower than its nominal voltage setting in order to determine whether the load device is capable of operating over its specified supply voltage range. This provides a convenient method for dynamically testing the operation of the load circuit over its supply margin or range. It can also be used to verify the function of supply voltage supervisors. Margin limits of the nominal output voltage 5% are default, but the margin limits can be reconfigured using the PMBus interface. Pre-Bias Startup Capability Pre-bias startup often occurs in complex digital systems when current from another power source is fed back through a dualsupply logic component, such as FPGAs or ASICs. The product incorporates synchronous rectifiers, but will not sink current during startup, or turn off, or whenever a fault shuts down the product in a pre-bias condition. Pre-bias protection is not offered for current sharing groups that also have voltage tracking enabled. Group Communication Bus The Group Communication Bus, GCB, is used to communicate between products. This dedicated bus provides the communication channel between devices for features such as sequencing, fault spreading and current sharing. The GCB bus solves the PMBus data rate limitation. The GCB pin of all products in an application should be connected together. A pull-up resistor is required on the common GCB in order to guarantee the rise time as follows: Eq. 6 = RGCB C GCB 1s , where RGCB is the pull up resistor value and CGCB is the bus loading. The pull-up resistor should be tied to an external supply voltage in range from 3.3 to 5 V, which should be present prior to or during power-up. If exploring untested compensation or deadtime configurations, it is recommended that 27 series resistors are placed between the GCB pin of each product and the common GCB connection. This will avoid propagation of faults between products potentially caused by hazardous configuration settings. When the configurations of the products are settled the series resistors can be removed. The GCB is an internal bus, such that it is only connected across the modules and not the PMBus system host. GCB addresses are assigned on a rail level, i.e. modules within the same current sharing group share the same GCB address. Addressing rails across the GCB is done with a 5 bit GCB ID, yielding a theoretical total of 32 rails that can be shared with a single GCB bus. See application note AN307 for further information. Fault spreading The product can be configured to broadcast a fault event over the GCB bus to the other devices in the group. When a nondestructive fault occurs and the device is configured to shut down on a fault, the device will shut down and broadcast the fault event over the GCB bus. The other devices on the GCB EN/LZT 146 436 R3B August 2014 (c) Ericsson AB bus will shut down together if configured to do so, and will attempt to re-start in their prescribed order if configured to do so. Over Temperature Protection (OTP) The products are protected from thermal overload by an internal over temperature shutdown circuit. When T P1 as defined in thermal consideration section exceeds 120C the product will shut down. The product will make continuous attempts to start up and resume normal operation automatically when the temperature has dropped >15C below the over temperature threshold. The specified OTP level and hysteresis are valid for worst case operation regarding cooling conditions, input voltage and output voltage. This means the OTP level and hysteresis in many cases will be lower. The OTP level, hysteresis, and fault response of the product can be reconfigured using the PMBus interface. The fault response can be configured as follows: 1. Initiate a shutdown and attempt to restart an infinite number of times with a preset delay period between attempts (default configuration). 2. Initiate a shutdown and attempt to restart a preset number of times with a preset delay period between attempts. 3. Continue operating for a given delay period, followed by shutdown if the fault still exists. 4. Continue operating through the fault (this could result in permanent damage to the power supply). 5. Initiate an immediate shutdown. Optimization examples This product is designed with a digital control circuit. The control circuit uses a configuration file which determines the functionality and performance of the product. It is possible to change the configuration file to optimize certain performance characteristics. In the table below is a schematic view on how to change different configuration parameters in order to achieve an optimization towards a wanted performance. Increase No change Decrease Config. parameters Optimized performence Maximize efficiency Minimize ripple ampl. Improve load transient response Minimize idle power loss Switching frequency Control loop bandwidth NLR threshold Diode emulation (DCM) Min. pulse Enable Disable Enable or disable Enable or disable Disable Disable Enable Enable E Technical Specification 28 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Efficiency vs. Output Current and Switching frequency P li P li P CTRL V tr1 Input idling power (no load) Input idling power (no load) Input standby power Load transient peak voltage deviation Load step 25-75-25% of max I O t tr1 Load transient recovery time Load step 25-75-25% of max I O Default configuration: Continues Conduction Mode, CCM V O = 0.6 V 0.36 [%] V O = 1.0 V 0.35 95 V O = 3.3 V 0.54 V O = 5.0 V 0.97 DCM, Discontinues Conduction Mode (diode emulation) DCM with Adaptive Frequency and Minimum Pulse Enabled DCM with Adaptive Frequency and Minimum Pulse Disabled V O = 0.6 V 0.30 V O = 1.0 V 0.37 V O = 3.3 V 0.41 V O = 5.0 V 0.45 V O = 0.6 V 0.29 V O = 1.0 V 0.35 V O = 3.3 V 0.37 V O = 5.0 V 0.42 V O = 0.6 V 0.25 V O = 1.0 V 0.20 V O = 3.3 V 0.20 V O = 5.0 V 0.20 Turned off with CTRL-pin Default configuration di/dt = 2 A/s C O =470 F Optimized PID and NLR configuration di/dt = 2 A/s C O =470 F Default configuration di/dt = 2 A/s C O =470 F Optimized PID and NLR configuration di/dt = 2 A/s C O =470 F Default configuration: Monitoring enabled, Precise timing enabled Monitoring enabled, Precise timing disabled Low power mode: Monitoring disabled, Precise timing disabled V O = 0.6 V 180 120 W W W 90 200 kHz 85 320 kHz 80 480 kHz 75 640 kHz 70 2 4 6 8 10 12 [A] Efficiency vs. load current and switching frequency at T P1 = +25C. V I =12 V, V O =3.3V, C O =470 F/10 m Default configuration except changed frequency W Power Dissipation vs. Output Current and Switching frequency [W] 5 mW mW 4 200 kHz 3 320 kHz 2 480 kHz 1 640 kHz 0 85 0 mW 0 2 4 6 8 10 12 [A] Dissipated power vs. load current and switching frequency at T P1 = +25C. V I =12 V, V O =3.3V, C O =470 F/10 m Default configuration except changed frequency Output Ripple vs. Switching frequency 55 V O = 1.0 V 65 V O = 3.3 V 110 V O = 5.0 V 190 V O = 0.6 V 40 V O = 1.0 V 35 V O = 3.3 V 55 V O = 5.0 V 105 V O = 0.6 V 230 60 V O = 1.0 V 210 40 V O = 3.3 V 200 20 V O = 5.0 V 200 V O = 0.6 V 45 V O = 1.0 V 40 V O = 3.3 V 40 V O = 5.0 V 35 mV [mVpk-pk] 160 140 120 mV 0.6 V 100 1.0 V 80 us 0 3.3 V 5.0 V 200 250 300 350 400 450 500 550 600 [kHz] Output voltage ripple V pk-pk at: T P1 = +25C, V I = 12 V, C O =470 F/10 m, I O = 12 A resistive load. Default configuration except changed frequency. E Technical Specification 29 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Load transient vs. Switching frequency EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Output Load Transient Response, Default PID/NLR [mV] 200 160 Default PID/NLR 120 Opt. PID, No NLR 80 Default PID, Opt. NLR Opt. PID/NLR 40 0 200 300 400 500 600 [kHz] Load transient peak voltage deviation vs. frequency. Step-change (3-9-3 A). T P1 = +25C. V I =12 V, V O =3.3 V, C O =470 F/10 m Output voltage response to load current step- Top trace: output voltage (200 mV/div.). change (3-9-3 A) at: Bottom trace: load current (5 A/div.). T P1 = +25C, V I = 12 V, V O =3.3 V Time scale: (0.1 ms/div.). di/dt=2 A/s, f sw =320 kHz, C O =470 F/10 m Default PID Control Loop and NLR Load Transient vs. Decoupling Capacitance, V O =1.0 V Output Load Transient Response, Optimized PID, no NLR [mV] 200 Default PID/NLR 150 Opt. PID, No NLR 100 Default PID, Opt. NLR 50 0 Opt. PID/NLR 0 1 2 3 4 5 [mF] Load transient peak voltage deviation vs. decoupling capacitance. Step-change (3-9-3 A). Parallel coupling of capacitors with 470 F/10 m, T P1 = +25C. V I =12 V, V O =1.0V, f sw =320 kHz, di/dt=2 A/s Output voltage response to load current step- Top trace: output voltage (200 mV/div.). change (3-9-3 A) at: Bottom trace: load current (5 A/div.). T P1 = +25C, V I = 12 V, V O =3.3 V Time scale: (0.1 ms/div.). di/dt=2 A/s, f sw =320 kHz, C O =470 F/10 m Optimized PID Control Loop and no NLR Load Transient vs. Decoupling Capacitance, V O =3.3 V Output Load Transient Response, Optimized NLR [mV] 200 Default PID/NLR 150 Opt. PID, No NLR 100 Default PID, Opt. NLR 50 0 Opt. PID/NLR 0 1 2 3 4 5 [mF] Load transient peak voltage deviation vs. decoupling capacitance. Step-change (3-9-3 A). Parallel coupling of capacitors with 470 F/10 m, T P1 = +25C. V I =12 V, V O =3.3 V, f sw =320 kHz, di/dt=2 A/s Output voltage response to load current step- Top trace: output voltage (200 mV/div.). change (3-9-3 A) at: Bottom trace: load current (5 A/div.). Time scale: (0.1 ms/div.). T P1 = +25C, V I = 12 V, V O =3.3 V di/dt=2 A/s, f sw =320 kHz, C O =470 F/10 m Default PID Control Loop and optimized NLR E Technical Specification 30 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Thermal Consideration EN/LZT 146 436 R3B August 2014 (c) Ericsson AB SIP version General The product is designed to operate in different thermal environments and sufficient cooling must be provided to ensure reliable operation. Cooling is achieved mainly by conduction, from the pins to the host board, and convection, which is dependant on the airflow across the product. Increased airflow enhances the cooling of the product. The Output Current Derating graph found in the Output section for each model provides the available output current vs. ambient air temperature and air velocity at specified V I . The product is tested on a 254 x 254 mm, 35 m (1 oz), test board mounted vertically in a wind tunnel with a cross-section of 608 x 203 mm. The test board has 8 layers. Proper cooling of the product can be verified by measuring the temperature at positions P1 and P2. The temperature at these positions should not exceed the max values provided in the table below. Note that the max value is the absolute maximum rating (non destruction) and that the electrical Output data is guaranteed up to T P1 +95C. See Design Note 019 for further information. Definition of product operating temperature The product operating temperatures are used to monitor the temperature of the product, and proper thermal conditions can be verified by measuring the temperature at positions P1 and P2. The temperature at these positions (T P1 , T P2 ) should not exceed the maximum temperatures in the table below. The number of measurement points may vary with different thermal design and topology. Temperatures above maximum T P1 , measured at the reference point P1 are not allowed and may cause permanent damage. Position Description Max Temp. P1 Reference point, L1, inductor 120C P2 N1, control circuit 120C AIR FLOW Top view P1 Temperature positions and air flow direction. Bottom view P2 Top view AIR FLOW Bottom view P1 P2 Temperature positions and air flow direction. Definition of reference temperature T P1 The reference temperature is used to monitor the temperature limits of the product. Temperature above maximum T P1 , measured at the reference point P1 is not allowed and may cause degradation or permanent damage to the product. T P1 is also used to define the temperature range for normal operating conditions. T P1 is defined by the design and used to guarantee safety margins, proper operation and high reliability ot the product. E Technical Specification 31 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Connections Connections (SIP version) Pin layout, top view (component placement for illustration only). Pin layout, bottom view (component placement for illustration only). Pin Designation Function Pin Designation Function 1A VIN Input Voltage 1A VIN Input Voltage 2A GND Power Ground 2A GND Power Ground 3A VOUT 3A VOUT Output voltage 4A VTRK or PG * Output Voltage Voltage Tracking input or Power Good 4A +S Positive sense 4B PREF Pin-strap reference 4B -S Negative sense 5A +S Positive sense 5A VSET Output voltage pin-strap 5B -S Negative sense 5B VTRK Voltage tracking input 6A SA0 PMBus address pinstrap 6A SALERT PMBus Alert 6B GCB Group Communication Bus 6B SDA PMBus data 7A SCL PMBus Clock 7A SCL PMBus Clock 7B SDA PMBus Data 7B SYNC Synchronization I/O 8A VSET Output voltage pinstrap 8A SA0 PMBus address pin-strap 8B SYNC Synchronization I/O 8B CTRL Remote Control 9A SALERT PMBus Alert 9A GCB Group Communication Bus 9B CTRL Remote Control 9B PREF Pin-strap Reference * BMR 462 0002, BMR 462 1002: Pin 4A = VTRK pin. BMR 462 0006, BMR 462 1006: Pin 4A = PG pin. For these products the PG pin is internally tied to the VTRK input of the products' controller. Typically the VTRK input bias current will be equivalent to a 50 kohm pull-down resistor. This should be considered when choosing pull-up resistor for the PG signal. E Technical Specification 32 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Unused input pins Unused SDA, SCL and GCB pins should still have pull-up resistors as specified. Unused VTRK or SYNC pins should be left unconnected or connected to the PREF pin. Unused CTRL pin can be left open due to internal pull-up. VSET and SA0/SA1 pins must have pinstrap resistors as specified. PWB layout considerations The pinstrap resistors, R SET , and R SA0 /R SA1 should be placed as close to the product as possible to minimize loops that may pick up noise. Avoid current carrying planes under the pinstrap resistors and the PMBus signals. The capacitor C I (or capacitors implementing it) should be placed as close to the input pins as possible. Capacitor C O (or capacitors implementing it) should be placed close to the load. Care should be taken in the routing of the connections from the sensed output voltage to the S+ and S- terminals. These sensing connections should be routed as a differential pair, preferably between ground planes which are not carrying high currents. The routing should avoid areas of high electric or magnetic fields. EN/LZT 146 436 R3B August 2014 (c) Ericsson AB E Technical Specification 33 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Typical Application Circuit Standalone operation with PMBus communication. Top view of product footprint. EN/LZT 146 436 R3B August 2014 (c) Ericsson AB E Technical Specification 34 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Typical Application Circuit (SIP version) Standalone operation with PMBus communication. Top view of product footprint. EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) No. EAB/FJB/GM QLAANDR Approved BMR462 series PoL Regulators EAB/FJB/GM (Ksenia Harrisen) 31/1301-BMR 462 Technical Specification 35 Checked Date (MICRF) 2012-09-26 Input 4.5-14 V, Output up to 12 A / 60 W 1 (6) Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB PMBus interface Snap shot parameter capture This product provides a PMBus digital interface that enables the user to configure many aspects of the device operation as well as to monitor the input and output voltages, output current and device temperature. The product can be used with any standard two-wire I2C or SMBus host device. In addition, the product is compatible with PMBus version 1.1 and includes an SALERT line to help mitigate bandwidth limitations related to continuous fault monitoring. The product supports 100 kHz bus clock frequency only. The PMBus signals, SCL, SDA and SALERT require passive pull-up resistors as stated in the SMBus Specification. Pull-up resistors are required to guarantee the rise time as follows: This product offers a special feature that enables the user to capture parametric data during normal operation or following a fault. The following parameters are stored: Eq. 7 = RP C p 1s where Rp is the pull-up resistor value and Cp is the bus loading, the maximum allowed bus load is 400 pF. The pull-up resistor should be tied to an external supply voltage in range from 2.7 to 5.5 V, which should be present prior to or during power-up. If the proper power supply is not available, voltage dividers may be applied. Note that in this case, the resistance in the equation above corresponds to parallel connection of the resistors forming the voltage divider. See application note AN304 for details on interfacing the product with a microcontroller. Monitoring via PMBus It is possible to monitor a wide variety of parameters through the PMBus interface. Fault conditions can be monitored using the SALERT pin, which will be asserted when any number of pre-configured fault or warning conditions occur. It is also possible to continuously monitor one or more of the power conversion parameters including but not limited to the following: * * * * * * Input voltage Output voltage Output current Internal junction temperature Switching frequency Duty cycle In the default configuration monitoring is enabled also when the output voltage is disabled. This can be changed in order to reduce standby power consumption. * * * * * * * Input voltage Output voltage Output current Internal junction temperature Switching frequency Duty cycle Status registers The Snapshot feature enables the user to read the parameters via the PMBus interface during normal operation, although it should be noted that reading the 22 bytes will occupy the bus for some time. The Snapshot enables the user to store the snapshot parameters to Flash memory in response to a pending fault as well as to read the stored data from Flash memory after a fault has occurred. Automatic store to Flash memory following a fault is triggered when any fault threshold level is exceeded, provided that the specific fault response is to shut down. Writing to Flash memory is not allowed if the device is configured to restart following the specific fault condition. It should also be noted that the device supply voltage must be maintained during the time the device is writing data to Flash memory; a process that requires between 700-1400 s depending on whether the data is set up for a block write. Undesirable results may be observed if the input voltage of the product drops below 3.0 V during this process. Software tools for design and production Ericsson provides software tools for configuration and monitoring of this product via the PMBus interface. For more information please contact your local Ericsson sales representative. Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 2 (6) No. EAB/FJB/GM QLAANDR Approved BMR462 series PoL Regulators EAB/FJB/GM (Ksenia Harrisen) 31/1301-BMR 462 Technical Specification 36 Checked Date (MICRF) 2012-09-26 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB PMBus addressing Optional PMBus Addressing The PMBus address should be configured with resistors connected between the SA0/SA1 pins and the PREF pin, as shown in the figure below. Recommended resistor values for hard-wiring PMBus addresses are shown in the table. 1% tolerance resistors are required. Alternatively the PMBus address can be defined by connecting the SA0/SA1 pins according to the table below. SA1 = open for products with no SA1 pin. SA0 SA1 RSA1 SA0 SA1 RSA0 PREF low open high low 20h 21h 22h open 23h 24h 25h high 26h 27h Reserved Low = Shorted to PREF Open = High impedance High = Logic high, GND as reference, Schematic of connection of address resistor. Logic High definitions see Electrical Specification Reserved Addresses Index RSA [k] 0 Index RSA [k] 10 13 34.8 1 11 14 38.3 2 12.1 15 42.2 3 13.3 16 46.4 4 14.7 17 51.1 5 16.2 18 56.2 6 17.8 19 61.9 0 General Call Address / START byte 7 19.6 20 68.1 1 CBUS address 8 21.5 21 75 2 Address reserved for different bus format Addresses listed in the table below are reserved or assigned according to the SMBus specification and may not be usable. Refer to the SMBus specification for further information. Address (decimal) 9 23.7 22 82.5 3-7 10 26.1 23 90.9 8 11 28.7 24 100 9-11 12 31.6 The PMBus address follows the equation below: Eq. 8 Address 4Bh is allocated for production needs and can not be used. PMBus Address (decimal) = 25 x (SA1 index) + (SA0 index) The user can theoretically configure up to 625 unique PMBus addresses, however the PMBus address range is inherently limited to 128. Therefore, the user should use index values 0 4 on the SA1 pin and the full range of index values on the SA0 pin, which will provide 125 device address combinations. Products with no SA1 pin have an internally defined SA1 index as follows. Product SA1 index BMR 462 4 Comment Reserved for future use SMBus Host Assigned for Smart Battery 12 SMBus Alert Response Address 40 Reserved for ACCESS.bus host 44-45 55 64-68 72-75 97 Reserved by previous versions of the SMBus specification Reserved for ACCESS.bus default address Reserved by previous versions of the SMBus specification Unrestricted addresses SMBus Device Default Address 120-123 10-bit slave addressing 124-127 Reserved for future use Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) No. EAB/FJB/GM QLAANDR Approved BMR462 series PoL Regulators EAB/FJB/GM (Ksenia Harrisen) 31/1301-BMR 462 Technical Specification 37 Checked Date (MICRF) 2012-09-26 Input 4.5-14 V, Output up to 12 A / 60 W I2C/SMBus - Timing Setup and hold times timing diagram The setup time, tset, is the time data, SDA, must be stable before the rising edge of the clock signal, SCL. The hold time thold, is the time data, SDA, must be stable after the rising edge of the clock signal, SCL. If these times are violated incorrect data may be captured or meta-stability may occur and the bus communication may fail. When configuring the product, all standard SMBus protocols must be followed, including clock stretching. Refer to the SMBus specification, for SMBus electrical and timing requirements. This product does not support the BUSY flag in the status commands to indicate product being too busy for SMBus response. Instead a bus-free time delay according to this specification must occur between every SMBus transmission (between every stop & start condition). In case of storing the RAM content into the internal non-volatile memory an additional delay of 20 ms has to be inserted. Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB 3 (6) Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 31/1301-BMR 462 Technical Specification 38 EAB/FJB/GM QLAANDR Approved BMR462 series PoL Regulators EAB/FJB/GM (Ksenia Harrisen) 4 (6) No. Checked Date (MICRF) 2012-09-26 Input 4.5-14 V, Output up to 12 A / 60 W Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB PMBus Commands Designation Cmd Impl The products are PMBus compliant. The following table lists the implemented PMBus read commands. For more detailed information see PMBus Power System Management Protocol Specification; Part I - General Requirements, Transport and Electrical Interface and PMBus Power System Management Protocol; Part II - Command Language. OT_FAULT_LIMIT 4Fh Yes OT_WARN_LIMIT 51h Yes UT_WARN_LIMIT 52h Yes UT_FAULT_LIMIT 53h Yes VIN_OV_FAULT_LIMIT 55h Yes VIN_OV_WARN_LIMIT 57h Yes VIN_UV_WARN_LIMIT 58h Yes Standard PMBus Commands VIN_UV_FAULT_LIMIT 59h Yes Control Commands Fault Response Commands Designation Cmd Impl PAGE 00h No VOUT_OV_FAULT_RESPONSE 41h Yes OPERATION 01h Yes VOUT_UV_FAULT_RESPONSE 45h Yes ON_OFF_CONFIG 02h Yes OT_FAULT_RESPONSE 50h Yes WRITE_PROTECT 10h No UT_FAULT_RESPONSE 54h Yes VIN_OV_FAULT_RESPONSE 56h Yes VOUT_MODE (Read Only) 20h Yes VIN_UV_FAULT_RESPONSE 5Ah Yes VOUT_COMMAND 21h Yes IOUT_OC_FAULT_RESPONSE 47h No VOUT_TRIM 22h Yes IOUT_UC_FAULT_RESPONSE 4Ch No VOUT_CAL_OFFSET 23h Yes Time setting Commands VOUT_MAX 24h Yes TON_DELAY 60h Yes VOUT_MARGIN_HIGH 25h Yes TON_RISE 61h Yes VOUT_MARGIN_LOW 26h Yes TOFF_DELAY 64h Yes VOUT_TRANSITION_RATE 27h Yes TOFF_FALL 65h Yes VOUT_DROOP 28h Yes TON_MAX_FAULT_LIMIT 62h No MAX_DUTY 32h Yes Status Commands (Read Only) FREQUENCY_SWITCH 33h Yes CLEAR_FAULTS 03h Yes VIN_ON 35h No STATUS_BYTE 78h Yes VIN_OFF 36h No STATUS_WORD 79h Yes IOUT_CAL_GAIN 38h Yes STATUS_VOUT 7Ah Yes IOUT_CAL_OFFSET 39h Yes STATUS_IOUT 7Bh Yes VOUT_SCALE_LOOP 29h No STATUS_INPUT 7Ch Yes VOUT_SCALE_MONITOR 2Ah No STATUS_TEMPERATURE 7Dh Yes COEFFICIENTS 30h No STATUS_CML 7Eh Yes STATUS_MFR_SPECIFIC 80h Yes Output Commands Fault Limit Commands POWER_GOOD_ON 5Eh Yes Monitor Commands (Read Only POWER_GOOD_OFF 5Fh No READ_VIN 88h Yes VOUT_OV_FAULT_LIMIT 40h Yes READ_VOUT 8Bh Yes VOUT_OV_WARN_LIMIT 42h No READ_IOUT 8Ch Yes VOUT_UV_WARN_LIMIT 43h No READ_TEMPERATURE_1 8Dh Yes VOUT_UV_FAULT_LIMIT 44h Yes READ_TEMPERATURE_2 8Eh No IOUT_OC_FAULT_LIMIT 46h Yes READ_FAN_SPEED_1 90h No IOUT_OC_WARN_LIMIT 4Ah No READ_DUTY_CYCLE 94h Yes IOUT_UC_FAULT_LIMIT 4Bh Yes READ_FREQUENCY 95h Yes Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 31/1301-BMR 462 Technical Specification 39 EAB/FJB/GM QLAANDR Approved BMR462 series PoL Regulators EAB/FJB/GM (Ksenia Harrisen) Checked Date (MICRF) 2012-09-26 Input 4.5-14 V, Output up to 12 A / 60 W Designation 5 (6) No. Cmd Impl Group Commands Rev Reference EN/LZT 146 436 R3B August 2014 B (c) Ericsson AB Designation Cmd Impl SNAPSHOT_CONTROL F3h Yes INTERLEAVE 37h Yes DEVICE_ID E4h Yes PHASE_CONTROL F0h Yes USER_DATA_00 B0h Yes 98h Yes SEQUENCE E0h Yes MFR_ID 99h Yes GCB_CONFIG D3h Yes MFR_MODEL 9Ah Yes GCB_GROUP E2h Yes MFR_REVISION 9Bh Yes ISHARE_CONFIG D2h Yes MFR_LOCATION 9Ch Yes PHASE_CONTROL F0h Yes MFR_DATE 9Dh Yes Supervisory Commands MFR_SERIAL 9Eh Yes PRIVATE_PASSWORD FBh Yes PUBLIC_PASSWORD FCh Yes Identification Commands PMBUS_REVISION Group Commands Supervisory Commands STORE_DEFAULT_ALL 11h Yes UNPROTECT FDh Yes RESTORE_DEFAULT_ALL 12h Yes SECURITY_LEVEL FAh Yes STORE_USER_ALL 15h Yes RESTORE_USER_ALL 16h Yes D4h Yes IOUT_AVG_OC_FAULT_LIMIT E7h Yes IOUT_AVG_UC_FAULT_LIMIT E8h Yes E5h Yes MFR_IOUT_UC_FAULT_RESPONSE E6h Yes OVUV_CONFIG D8h Yes MFR_CONFIG D0h Yes USER_CONFIG D1h Yes MISC_CONFIG E9h Yes TRACK_CONFIG E1h Yes PID_TAPS D5h Yes PID_TAPS_CALC F2h Yes INDUCTOR D6h Yes NLR_CONFIG D7h Yes TEMPCO_CONFIG DCh Yes IOUT_OMEGA_OFFSET BEh Yes DEADTIME DDh Yes DEADTIME_CONFIG DEh Yes DEADTIME_MAX BFh Yes SNAPSHOT EAh Yes Product Specific Commands Time Setting Commands POWER_GOOD_DELAY Fault limit Commands Fault Response Commands MFR_IOUT_OC_FAULT_RESPONSE Configuration and Control Commands Notes: Cmd is short for Command. Impl is short for Implemented. E Technical Specification 40 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Mechanical Information - Hole Mount, Open Frame Version All component placements - whether shown as physical components or symbolical outline - are for reference only and are subject to change throughout the product's life cycle, unless explicitly described and dimensioned in this drawing. E Technical Specification 41 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Mechanical Information - Surface Mount Version All component placements - whether shown as physical components or symbolical outline - are for reference only and are subject to change throughout the product's life cycle, unless explicitly described and dimensioned in this drawing. E Technical Specification 42 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Mechanical Information All component placements - whether shown as physical components or symbolical outline - are for reference only and are subject to change throughout the product's life cycle, unless explicitly described and dimensioned in this drawing. E Technical Specification 43 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Soldering Information - Surface Mounting and Hole Mount through Pin in Paste Assembly The product is intended for forced convection or vapor phase reflow soldering in SnPb or Pb-free processes. The reflow profile should be optimised to avoid excessive heating of the product. It is recommended to have a sufficiently extended preheat time to ensure an even temperature across the host PWB and it is also recommended to minimize the time in reflow. A no-clean flux is recommended to avoid entrapment of cleaning fluids in cavities inside the product or between the product and the host board, since cleaning residues may affect long time reliability and isolation voltage. Lead-free (Pb-free) solder processes For Pb-free solder processes, a pin temperature (T PIN ) in excess of the solder melting temperature (T L , 217 to 221C for SnAgCu solder alloys) for more than 60 seconds and a peak temperature of 245C on all solder joints is recommended to ensure a reliable solder joint. Maximum Product Temperature Requirements Top of the product PWB near pin 9B is chosen as reference location for the maximum (peak) allowed product temperature (T PRODUCT ) since this will likely be the warmest part of the product during the reflow process. SnPb solder processes General reflow process specifications SnPb eutectic Pb-free Average ramp-up (T PRODUCT ) 3C/s max 3C/s max For SnPb solder processes, the product is qualified for MSL 1 according to IPC/JEDEC standard J-STD-020C. 183C 221C During reflow T PRODUCT must not exceed 225 C at any time. 60 s 60 s Typical solder melting (liquidus) temperature TL Minimum reflow time above T L Pb-free solder processes Minimum pin temperature T PIN 210C 235C Peak product temperature T PRODUCT 225C 260C Average ramp-down (T PRODUCT ) 6C/s max 6C/s max Maximum time 25C to peak 6 minutes 8 minutes Temperature TPRODUCT maximum TPIN minimum Pin profile TL Time in preheat / soak zone Time 25C to peak Time in reflow Product profile Time Minimum Pin Temperature Recommendations Pin number 2A is chosen as reference location for the minimum pin temperature recommendation since this will likely be the coolest solder joint during the reflow process. For Pb-free solder processes, the product is qualified for MSL 3 according to IPC/JEDEC standard J-STD-020C. During reflow T PRODUCT must not exceed 260 C at any time. Dry Pack Information Products intended for Pb-free reflow soldering processes are delivered in standard moisture barrier bags according to IPC/JEDEC standard J-STD-033 (Handling, packing, shipping and use of moisture/reflow sensitivity surface mount devices). Using products in high temperature Pb-free soldering processes requires dry pack storage and handling. In case the products have been stored in an uncontrolled environment and no longer can be considered dry, the modules must be baked according to J-STD-033. Thermocoupler Attachment Pin 9B for measurement of maximum Product temperature TPRODUCT SnPb solder processes For SnPb solder processes, a pin temperature (T PIN ) in excess of the solder melting temperature, (T L , 183C for Sn63Pb37) for more than 60 seconds and a peak temperature of 220C is recommended to ensure a reliable solder joint. For dry packed products only: depending on the type of solder paste and flux system used on the host board, up to a recommended maximum temperature of 245C could be used, if the products are kept in a controlled environment (dry pack handling and storage) prior to assembly. Pin 2A for measurement of minimum Pin (solder joint) temperature TPIN E Technical Specification 44 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Soldering Information - Hole Mounting The hole mounted product is intended for plated through hole mounting by wave or manual soldering. The pin temperature is specified to maximum to 270C for maximum 10 seconds. A maximum preheat rate of 4C/s and maximum preheat temperature of 150C is suggested. When soldering by hand, care should be taken to avoid direct contact between the hot soldering iron tip and the pins for more than a few seconds in order to prevent overheating. A no-clean flux is recommended to avoid entrapment of cleaning fluids in cavities inside the product or between the product and the host board. The cleaning residues may affect long time reliability and isolation voltage. Delivery Package Information The products are delivered in antistatic carrier tape (EIA 481 standard). Carrier Tape Specifications Material Antistatic PS Surface resistance <107 Ohm/square Bakeability The tape is not bakable Tape width, W 44 mm [1.73 inch] Pocket pitch, P 1 24 mm [0.95 inch] Pocket depth, K 0 12.3 mm [0.488 inch] Reel diameter 381 mm [15 inch] Reel capacity 200 products /reel Reel weight 1.3 kg/full reel EN/LZT 146 436 R3B August 2014 (c) Ericsson AB E Technical Specification 45 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W Soldering Information - Hole Mounting (SIP version) The product is intended for plated through hole mounting by wave or manual soldering. The pin temperature is specified to maximum to 270C for maximum 10 seconds. A maximum preheat rate of 4C/s and maximum preheat temperature of 150C is suggested. When soldering by hand, care should be taken to avoid direct contact between the hot soldering iron tip and the pins for more than a few seconds in order to prevent overheating. A no-clean flux is recommended to avoid entrapment of cleaning fluids in cavities inside the product or between the product and the host board. The cleaning residues may affect long time reliability and isolation voltage. Delivery Package Information (SIP version) The products are delivered in antistatic/static dissipative trays Tray Specifications Material Antistatic Polyethylene foam Surface resistance 105< Ohms/square <1011 Bakability The trays are not bakeable Tray thickness 15 mm [ 0.591 inch] Box capacity 100 products, 2 full trays/box) Tray weight 35 g empty tray, 290 g full tray EN/LZT 146 436 R3B August 2014 (c) Ericsson AB E Technical Specification 46 BMR462 series PoL Regulators Input 4.5-14 V, Output up to 12 A / 60 W EN/LZT 146 436 R3B August 2014 (c) Ericsson AB Product Qualification Specification Characteristics External visual inspection IPC-A-610 Change of temperature (Temperature cycling) IEC 60068-2-14 Na Temperature range Number of cycles Dwell/transfer time -40 to 100C 1000 15 min/0-1 min Cold (in operation) IEC 60068-2-1 Ad Temperature T A Duration -45C 72 h Damp heat IEC 60068-2-67 Cy Temperature Humidity Duration 85C 85 % RH 1000 hours Dry heat IEC 60068-2-2 Bd Temperature Duration 125C 1000 h Electrostatic discharge susceptibility IEC 61340-3-1, JESD 22-A114 IEC 61340-3-2, JESD 22-A115 Human body model (HBM) Machine Model (MM) Class 2, 2000 V Class 3, 200 V Immersion in cleaning solvents IEC 60068-2-45 XA, method 2 Water Glycol ether 55C 35C Mechanical shock IEC 60068-2-27 Ea Peak acceleration Duration 100 g 6 ms Moisture reflow sensitivity 1 J-STD-020C Level 1 (SnPb-eutectic) Level 3 (Pb Free) 225C 260C Operational life test MIL-STD-202G, method 108A Duration 1000 h Resistance to soldering heat 2 IEC 60068-2-20 Tb, method 1A Solder temperature Duration 270C 10-13 s Robustness of terminations IEC 60068-2-21 Test Ua1 IEC 60068-2-21 Test Ue1 Through hole mount products Surface mount products All leads All leads Preconditioning Temperature, SnPb Eutectic Temperature, Pb-free 150C dry bake 16 h 215C 235C Preconditioning Temperature, SnPb Eutectic Temperature, Pb-free Steam ageing 235C 245C Frequency Spectral density Duration 10 to 500 Hz 0.07 g2/Hz 10 min in each direction IEC 60068-2-58 test Td 1 Solderability IEC 60068-2-20 test Ta 2 Vibration, broad band random IEC 60068-2-64 Fh, method 1 Notes 1 Only for products intended for reflow soldering (surface mount products) 2 Only for products intended for wave soldering (plated through hole products) Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Ericsson Power Modules: BMR4620002/001 BMR4621002/001 BMR4622002/001