E Ericsson Internal PRODUCT TABLE OF CONTENTS SPECIFICATION Prepared (also subject responsible if other) SEC/S EZHIXZH Kevin Zhou Approved 1 (2) (5) No. Checked 1/130100152-FGC1011835 BMR 457Technical Uen Specification Date BMR457 series SEC/S SEC/D Kevin (Julia You) Zhou Fully regulated Advanced Bus Converters 2015-05-13 2012-08-24 Input 36-75 V, Output up to 25 A / 300 W Rev Reference 1/28701-FGC 101 1835 revD May 2015 C (c) Ericsson AB Key Features Advanced Bus Converter Industry standard Eighth-brick with digital PMBus interface 58.4 x 22.7 x 10.2 mm (2.30 x 0.89 x 0.40 in.) Optional industry standard 5-pins for intermediate bus architectures Industry-leading Power Density for Telecom and Datacom 129-147W / sq. in Ericsson DC/DC Energy Optimizer built-in High efficiency, typ. 95.2% at half load, 12 Vout Fully regulated Advanced Bus Converter from 36-75Vin 2250 Vdc input to output isolation Fast Feed forward regulation to manage line transients Optional baseplate for high temperature applications Droop Load Sharing with 10% current share accuracy PMBus Revision 1.2 compliant 2.9 million hours MTBF ISO 9001/14001 certified supplier Power Management Configurable soft start/stop Precision delay and ramp-up Voltage margining Voltage/current/temperature monitoring Wide output voltage range Configurable protection features Safety Approvals Design for Environment Meets requirements in hightemperature lead-free soldering processes Contents Ordering Information General Information Safety Specification Absolute Maximum Ratings ............................................................. 2 ............................................................. 2 ............................................................. 4 ............................................................. 5 Electrical Specification 12 V, 22 A / 264 W (36-75Vin) 12 V, 25 A / 300 W (40-60Vin) 12.45 V, 22 A / 261 W (36-75Vin) 12.45 V, 25 A / 296 W (40-60Vin) BMR 457 0004/001............................... 7 BMR 457 0000/002............................. 11 BMR 457 0007/014............................. 15 BMR 457 0011/017............................. 18 EMC Specification Operating Information Thermal Consideration Connections PMBus Interface Mechanical Information Soldering Information Delivery Information Product Qualification Specification ........................................................... 21 ........................................................... 22 ........................................................... 25 ........................................................... 26 ........................................................... 27 ........................................................... 30 ........................................................... 33 ........................................................... 34 ........................................................... 36 E Ericsson Internal PRODUCT SPECIFICATION Prepared (also subject responsible if other) 2 (5) No. 1/1301- BMR 457Technical Uen Specification EZHIXZH Approved Checked Date Rev 2 Reference BMR457 series SEC/D (Julia You) Fully regulated Advanced Bus Converters 2015-05-13 1/28701-FGC 101 1835 revD May 2015 Input 36-75 V, Output up to 25 A / 300 W (c) Ericsson AB Ordering Information 002 = 12 V Standard configuration for 40-60 Vin, n3n4 = 00 or 01 008 = 12 V with positive RC logic configuration for 36-75 Vin, n3n4 = 04 or 05 009 = 12 V with positive RC logic configuration for 40-60 Vin, n3n4 = 00 or 01 013 = 12 V with 0.6 V droop load sharing function configuration (36-75 Vin, n3n4 = 06 or 07) 014 = 12.45 V with 0.6V droop load sharing function configuration (36-75 Vin, n3n4 = 06 or 07) 016 = 12 V with 0.6 V droop load sharing function configuration (40-60 Vin, n3n4 = 11 or 12) 017 = 12.45 V with 0.6V droop load sharing function configuration (40-60 Vin, n3n4 = 11 or 12) Product program Vin Output BMR4570004/001 36 - 75 12 V / 22 A, 264 W BMR4570007/013 36 - 75 12 V / 22 A, 251 W BMR4570007/014 36 - 75 12.45 V / 22 A, 261 W BMR4570000/002 40 - 60 12 V / 25 A, 300 W BMR4570011/016 40 - 60 12 V / 25 A, 285 W BMR4570011/017 40 - 60 12.45 V / 25 A, 296 W Product Number and Packaging BMR457 n1n2n3n4 /n5n6n7 Options Mechanical pin option Mechanical option n1 n2 n3 n4 x / n5 n6 n7 / x xxx = Application Specific Configuration Packaging / x Hardware option x / / Configuration file x x Optional designation Description n1 0 = Standard pin length 5.33 mm note 1 1 = Surface mount option 2 = Lead length 3.69 mm(0.145 in.) (cut) 3 = Lead length 4.57 mm(0.180 in.) (cut) 4 = Lead length 2.79 mm(0.110 in.) (cut) x n2 0 = Open frame 1 = Baseplate n 3 n4 00 = 40-60 Vin, 6.9-13.2 Vout adjusted, with digital interface 01 = 40-60 Vin, 6.9-13.2 Vout adjusted, without digital interface 04 = 36-75 Vin, 6.9-13.2 Vout adjusted, with digital interface 05 = 36-75 Vin, 6.9-13.2 Vout adjusted, without digital interface 06 = 36-75 Vin, 6.9-13.2 Vout adjusted, Droop load sharing function for parallel operation, without digital interface 07 = 36-75 Vin, 6.9-13.2 Vout adjusted, Droop load sharing function for parallel operation, with digital interface 11 = 40-60 Vin, 6.9-13.2 Vout adjusted, Droop load sharing function for parallel operation, with digital interface 12 = 40-60 Vin, 6.9-13.2 Vout adjusted, Droop load sharing function for parallel operation, without digital interface n 5 n6 n 7 C 001 = 12 V Standard configuration for 36-75 Vin, n3n4 = 04 or 05 25 converters(through hole pin)/tray, PE foam dissipative 20 converters(surface mount pin)/tray, Antistatic PPE Example: Product number BMR4572004/001 equals an Through hole mount lead length 3.69 mm (cut), open frame, digital interface with 12 V standard configuration variant. Note 1: No baseplate option For application specific configurations contact your local Ericsson Power Modules sales representative. 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, Std. deviation, 421 n Failures/h 60.9 nFailures/h MTBF (mean value) for the BMR457 series = 2.91 Mh. MTBF at 90% confidence level = 2.37 Mh Compatibility with RoHS requirements The products are compatible with the relevant clauses and requirements of the RoHS directive 2011/65/EU 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 E Ericsson Internal PRODUCT SPECIFICATION Prepared (also subject responsible if other) EZHIXZH Approved 3 (5) No. Checked 1/1301- BMR 457Technical Uen Specification Date BMR457 series SEC/D (Julia You) Fully regulated Advanced Bus Converters 2015-05-13 Input 36-75 V, Output up to 25 A / 300 W homogeneous materials for cadmium. Exemptions in the RoHS directive utilized in Ericsson Power Modules products are found in the Statement of Compliance document. 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 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 2015 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. Rev Reference 3 1/28701-FGC 101 1835 revD May 2015 C (c) Ericsson AB E Ericsson Internal PRODUCT SPECIFICATION Prepared (also subject responsible if other) EZHIXZH Approved Checked 1/1301- BMR 457Technical Uen Specification Date BMR457 series SEC/D (Julia You) Fully regulated Advanced Bus Converters 2015-05-13 Input 36-75 V, Output up to 25 A / 300 W Safety Specification General information Ericsson Power Modules DC/DC converters and DC/DC regulators are designed in accordance with the safety standards IEC 60950-1, EN 60950-1 and 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: 4 (5) No. 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/EN/UL 60950-1 Safety of Information Technology Equipment. Product related standards, e.g. IEEE 802.3af Power over Ethernet, and ETS-300132-2 Power interface at the input to telecom equipment, operated by direct current (dc) 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. Isolated DC/DC converters Galvanic isolation between input and output is verified in an electric strength test and the isolation voltage (Viso) meets the voltage strength requirement for basic insulation according to IEC/EN/UL 60950-1. It is recommended to use a slow blow fuse 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 Rev 4 Reference 1/28701-FGC 101 1835 revD May 2015 C (c) Ericsson AB 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 DC/DC converter output is considered as safety extra low voltage (SELV) if one of the following conditions is met: The input source has double or reinforced insulation from the AC mains according to IEC/EN/UL 60950-1 The input source has basic or supplementary insulation from the AC mains and the input of the DC/DC converter is maximum 60 Vdc and connected to protective earth according to IEC/EN/UL 60950-1 The input source has basic or supplementary insulation from the AC mains and the DC/DC converter output is connected to protective earth according to IEC/EN/UL 60950-1 Non - isolated DC/DC regulators The DC/DC regulator output is SELV if the input source meets the requirements for SELV circuits according to IEC/EN/UL 60950-1. E Technical Specification BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 5 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Absolute Maximum Ratings Characteristics min max Unit TP1 Operating Temperature (see Thermal Consideration section) -40 typ +125 C TS Storage temperature -55 +125 C +80 +65* V VI Input voltage -0.5 Cout Output capacitance 100 V iso V iso Isolation voltage (input to output test voltage) Isolation voltage (input to baseplate qualification test voltage) 2250 750 Vdc Vdc V iso Isolation voltage (baseplate to output qualification test voltage) 750 Vdc V tr Input voltage transient according to ETSI EN 300 132-2 and Telcordia GR-1089CORE +100 +80* V V RC Remote Control pin voltage (see Operating Information section) -0.3 18 V V Logic I/O SALERT, CTRL, SCL, SDA, SA0, SA1 -0.3 3.6 V F Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes ref erred to as no destruction limits, are normally tested with one parameter at a time exceeding the limits in the Electrical Specif ication. If exposed to stress abov e these limits, f unction and perf ormance may degrade in an unspecif ied manner. *) Apply f or the narrow input v ersion VI = 40-60 V. Fundamental Circuit Diagram Driver +IN +OUT -OUT -IN Auxillary Supply Driver Control RC RC isolation E Technical Specification BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 6 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Functional Description TP1, TP3 = -40 to +90C, V I = 36 to 75 V, sense pins connected to output pins unless otherw ise specified under Conditions. Typical values given at: TP1, TP3 = +25C, V I= 53 V, max IO , unless otherwise specified under Conditions Configuration File: 190 10-CDA 102 0315/001 Characteristics Conditions m in typ m ax Unit PMBus m onitoring accuracy VIN_READ Input voltage VOUT_READ Output voltage IOUT_READ Output current TEMP_READ Temperature V I = 53 V V I = 53 V, 50-100% of max IO V I = 53 V, 10% of max IO Controller IC internal sensor -2 0.5 2 % -1.0 0.1 1.0 % % -6 1.5 6 -0.6 - 0.6 A 0 5 10 C Fault Protection Characteristics Factory default Input Under Voltage Setpoint accuracy Lockout, UVLO Hysteresis Factory default Configurable via PMBus of threshold range, Note 1 Delay Factory default VOUT_UV_FAULT_LIMIT (Output voltage) Configurable via PMBus, Note 1 Over/Under Voltage Factory default Protection, VOUT_OV_FAULT_LIMIT Configurable via PMBus, Note 1 OVP/UVP fault response time Setpoint accuracy Over Current Protection, OCP IOUT_OC_FAULT_LIMIT Io Factory default Configurable via PMBus, Note 1 fault response time Over Temperature Protection, OTP OTP_FAULT_LIMIT OTP hysteresis Factory default Configurable via PMBus, Note 1 Factory default Configurable via PMBus, Note 1 fault response time Logic Input/Output Characteristics Logic input low (V IL) Logic input high (V IH) Logic output low (V OL) Logic output high (V OH) Bus free time T(BUF) Note 1: See Operating Information section. Note 2: PMBus timing parameters according to PMBus spec. CTRL, SA0, SA1, PG, SCL, SDA, CTRL, PG, SALERT, SCL, SDA IOL = 6 mA CTRL, PG, SALERT, SCL, SDA IOH = -6 mA Note 2 - 32 - V 0 0.5 1 V - 2 - V 0 - - V - 300 - s - 0 - V 0 - 16 V - 15.6 - V V OUT - 16 V -6 200 6 s - 25 - 0 -50 200 125 100 125 10 % A s C 0 - 300 125 - s - - 1.1 V 2.1 - - V - - 0.25 V 2.7 - - V 1.3 - us E Technical Specification BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Electrical Specification 12 V, 22 A, 264 W BMR457 0004/001 TP1 = -40 to +90C, V I = 36 to 75V, sense pins connected to output pins unless otherw ise specified under Conditions. Typical values given at: TP1 = +25C, V I = 53 V, max IO, unless otherw ise specified under Conditions. Additional Cin= 0.1 mF, Cout = 0.1 mF. See Operating Information section for selection of capacitor types. Configuration File: 19010-CDA 102 0315/001 Characteristics Conditions min typ VI Input voltage range V Ioff Turn-off input voltage Decreasing input voltage 32 V Ion Turn-on input voltage Increasing input voltage 34 CI Internal input capacitance PO Output pow er Efficiency 7 max Unit 75 V 33 34 V 35 36 36 0 264 50% of max IO 94.7 max IO 94.5 50% of max IO, V I = 48 V 95.2 max IO, V I = 48 V 94.8 V F 11 W % Pd Pow er Dissipation max IO 15.5 Pli Input idling pow er IO = 0 A, V I = 53 V 3.5 W PRC Input standby pow er V I = 53 V (turned off with RC) 0.4 W fs Default sw itching frequency 0-100 % of max IO V Oi VO V tr ttr tr ts tf tRC Output voltage initial setting and accuracy Output adjust range TP1 = +25C, V I = 53 V, IO = 12 A See operating information W 171 180 189 kHz 11.88 12.0 12.12 V 6.9 13.2 V V Output voltage tolerance band 0-100 % of max IO 11.76 12.24 Idling voltage IO = 0 A 11.88 12.12 V Line regulation max IO 100 200 mV Load regulation Load transient voltage deviation V I = 53 V, 1-100 % of max IO 30 100 mV V I = 53 V, Load step 25-75-25% of max IO, di/dt = 1 A/s, Cout = 2.2 mF OSCON type 350 mV 200 s 8 ms 23 ms RC start-up time max IO IO = 0 A max IO 0.7 6 12 ms s ms RC shut-dow n fall time max IO 3 ms (f rom RC of f to 10% of VO ) IO = 0 A 6 Load transient recovery time Ramp-up time (f rom 10-90% of VOi) Start-up time 10-100 % of max IO (f rom VI connection to 90% of VOi) V I shut-down fall time (f rom VI of f to 10% of VO ) IO Output current Ilim Current limit threshold V O = 10.8 V, TP1 < max TP1 Isc Short circuit current TP1 = 25C, see Note 1 Cout Recommended Capacitive Load TP1 = 25C, see Note 2 V Oac Output ripple & noise OVP Over voltage protection 15.6 Sink current, see Note 3 See ripple & noise section, V Oi TP1 = +25C, V I = 53 V, 10-100 % of max IO See operating information Trigger level Decreasing / Increasing RC-voltage 2.6/2.9 RC 22 0 24 s 22 A 26 A 2.2 6 mF 50 100 mVp-p 25 1.1 0 A V 0.7 Note 1: OCP in hic-up mode Note 2: Low ESR-value Note 3: Sink current drawn by external device connected to the RC pin. Minimum sink current required to guarantee activated RC function. mA V E Technical Specification BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 8 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Typical Characteristics 12 V, 22 A, 264 W BMR 457 0004/ 001 Efficiency Power Dissipation [W] 20 [%] 100 16 95 36 V 90 36 V 12 48 V 53 V 85 48 V 8 53 V 75 V 75 V 80 4 75 0 0 5 10 15 20 0 25 [A] 5 10 15 20 25 [A] Dissipated power v s. load current and input v oltage at TP1 = +25C. Ef f iciency vs. load current and input v oltage at TP1 = +25C. Output Characteristics Current Limit Characteristics [V] [V] 12.20 15.00 12.00 12.10 36 V 12.00 11.90 11.80 36 V 48 V 9.00 53 V 75 V 6.00 48 V 53 V 75 V 3.00 0.00 0 5 10 15 20 Output v oltage v s. load current at TP1 = +25C. 25 [A] 15 18 21 24 27 [A] Output v oltage v s. load current at I O > max I O , TP1 = +25C. E Technical Specification BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Typical Characteristics 12 V, 22 A, 264 W BMR 457 0004/ 001 Start-up Start-up enabled by connecting VI at: TP1 = +25C, VI = 53 V, IO = 22 A resistive load. Shut-down Top trace: output voltage (5 V/div). Bottom trace: input voltage (50 V/div). Time scale: (5 mS/div) Output Ripple & Noise Output voltage ripple at: TP1 = +25C, VI = 53 V, IO = 22 A resistive load. Shut-down enabled by disconnecting VI at: TP1 = +25C, VI = 53 V, IO = 22 A resistive load. Top trace: output voltage (5 V/div). Bottom trace: input voltage (50 V/div). Time scale: (2 mS/div). Output Load Transient Response Trace: output voltage (20 mV/div). Time scale: (2 uS/div). Input Voltage Transient Response Output voltage response to input voltage transient at: TP1 = +25C, VI = 36-75 V, IO = 11 A resistive load, CO = 2.2 mF 9 Top trace: output voltage (2 V/div.). Bottom trace: input voltage (20 V/div.). Time scale: (0.5 ms/div.). Output voltage response to load current step- Top trace: output voltage (0.5 V/div). change (5.5 - 16.5 - 5.5 A) at: Bottom trace: load current (5 A/div). TP1 =+25C, VI = 53 V. CO = 2.2 mF. Time scale: (0.5 mS/div) E Technical Specification 10 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Typical Characteristics 12 V, 22 A, 264 W BMR 457 0004/ 001 Output Current Derating - Open frame [A] 25 3.0 m/s 20 2.0 m/s 15 1.5 m/s 1.0 m/s 10 0.5 m/s 5 Nat. Conv. 0 0 20 40 60 80 100 [C] Av ailable load current v s. ambient air temperature and airf low at VI = 53 V. See Thermal Consideration section. Output Current Derating - Base plate Thermal Resistance - Base plate [C/W] [A] 25 6 3.0 m/s 5 20 2.0 m/s 15 1.5 m/s 1.0 m/s 10 0.5 m/s 5 Nat. Conv. 4 3 2 1 0 0 0 20 40 60 80 0.0 100 [C] Av ailable load current v s. ambient air temperature and airf low at VI = 53 V. See Thermal Consideration section. Output Current Derating - Base plate + Heat sink [A] 25 0.5 1.0 1.5 2.0 2.5 3.0 [m/s] Thermal resistance v s. airspeed measured at the conv erter. Tested in wind tunnel with airf low and test conditions as per the Thermal consideration section. VI = 53 V. Output Current Derating - Cold wall sealed box A 3.0 m/s 20 2.0 m/s 15 1.5 m/s 10 1.0 m/s 25 20 Tamb 85C 15 10 0.5 m/s 5 Nat. Conv. 0 0 20 40 60 80 100 [C] Av ailable load current v s. base plate temperature. VI = 53 V. See Thermal Consideration section. Tested with Plate Fin Transv erse heatsink, height 0.23 In, P0114 Thermal Pad. 5 0 0 20 40 60 80 100 [C] Av ailable load current v s. base plate temperature at 85C ambient. VI = 53 V. See Thermal Consideration section. E Technical Specification 11 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Electrical Specification 12 V, 25 A, 300 W BMR457 0000/002 TP1 = -40 to +90C, V I = 40 to 60 V, sense pins connected to output pins unless otherw ise specified under Conditions. Typical values given at: TP1 = +25C, VI= 53 VI max IO, unless otherw ise specified under Conditions. Additional Cin= 0.1 mF, Cout = 0.1 mF. See Operating Information section for selection of capacitor types. Configuration File: 19010-CDA1020315/002 Characteristics Conditions min typ VI Input voltage range V Ioff Turn-off input voltage Decreasing input voltage 36 V Ion Turn-on input voltage Increasing input voltage 38 CI Internal input capacitance PO Output pow er Efficiency max Unit 60 V 37 38 V 39 40 40 0 300 50% of max IO 95.2 max IO 94.6 50% of max IO, V I = 48 V 95.1 max IO, V I = 48 V 94.5 V F 11 W % Pd Pow er Dissipation max IO 17 Pli Input idling pow er IO = 0 A, V I = 53 V 4.4 W PRC Input standby pow er V I = 53 V (turned off with RC) 0.4 W fs Sw itching frequency 0-100 % of max IO 180 kHz V Oi VO V tr ttr tr ts tf tRC Output voltage initial setting and accuracy Output adjust range TP1 = +25C, V I = 53 V, IO = 12 A See operating information 12.00 W 12.12 V 6.9 13.2 V V Output voltage tolerance band 0-100 % of max IO 11.76 12.24 Idling voltage IO = 0 A 11.88 12.12 V Line regulation max IO 50 220 mV Load regulation Load transient voltage deviation V I = 53 V, 1-100 % of max IO 45 100 mV V I = 53 V, Load step 25-75-25% of max IO, di/dt = 1 A/s Cout = 2.5 mF OSCON type 300 mV 250 s 8 ms 23 ms RC start-up time max IO IO = 0 A max IO 0.7 6 14 ms s ms RC shut-dow n fall time max IO 4 ms (f rom RC of f to 10% of VO ) IO = 0 A 6 Load transient recovery time Ramp-up time (f rom 10-90% of VOi) Start-up time 10-100 % of max IO (f rom VI connection to 90% of VOi) V I shut-down fall time (f rom VI of f to 10% of VO ) IO Output current Ilim Current limit threshold TP1 < max TP1 Isc Short circuit current TP1 = 25C, see Note 1 Cout Recommended Capacitive Load TP1 = 25C, see Note 2 V Oac Output ripple & noise OVP Over voltage protection Sink current, see Note 3 See ripple & noise section, V Oi TP1 = +25C, V I = 53 V, 10-100 % of max IO See operating information Trigger level See operating information RC 11.88 24 0 27 s 25 A 33 A 2.5 10 mF 70 140 mVp-p 30 1.1 0 A 15.6 V 0.7 2.6/2.9 Note 1: OCP in hic-cup mode Note 2: Low ESR-value Note 3: Sink current drawn by external device connected to the RC pin. Minimum sink current required to guarantee activated RC function. mA V E Technical Specification 12 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Typical Characteristics 12 V, 25 A, 300 W BMR 457 000 0/002 Efficiency Power Dissipation 100 [W] 20 95 16 [%] 40 V 90 40 V 12 53 V 53 V 85 8 60 V 60 V 80 4 75 0 5 10 15 20 0 25 [A] 0 5 10 15 20 25 [A] Dissipated power v s. load current and input v oltage at TP1 = +25C. Ef f iciency vs. load current and input v oltage at TP1 = +25C. Output Characteristics Current Limit Characteristics [V] [V] 12.20 15.00 12.10 12.00 40 V 12.00 53 V 9.00 60 V 6.00 40 V 53 V 60 V 11.90 3.00 11.80 0.00 0 5 10 15 20 25 Output v oltage v s. load current at TP1 = +25C. 30 [A] 15 20 25 30 35 [A] Output v oltage v s. load current at I O > max I O , TP1 = +25C. E Technical Specification 13 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Typical Characteristics 12 V, 25 A, 300 W BMR 457 0000/ 002 Start-up Start-up enabled by connecting VI at: TP1 = +25C, VI = 53 V, IO = 25 A resistive load. Shut-down Top trace: output voltage (5 V/div). Bottom trace: input voltage (50 V/div). Time scale: (10 mS/div) Output Ripple & Noise Output voltage ripple at: TP1 = +25C, VI = 53 V, IO = 25 A resistive load. Top trace: output voltage (5 V/div). Bottom trace: input voltage (20 V/div). Time scale: (1 mS/div). Output Load Transient Response Trace: output voltage (20 mV/div). Time scale: (2 uS/div). Input Voltage Transient Response Output voltage response to input voltage transient at: TP1 = +25C, VI = 40-60 V, IO = 25 A resistive load, CO = 3.3 mF Shut-down enabled by disconnecting VI at: TP1 = +25C, VI = 53 V, IO = 25 A resistive load. Top trace: output voltage (2 V/div.). Bottom trace: input voltage (20 V/div.). Time scale: (0.5 ms/div.). Output voltage response to load current step- Top trace: Output voltage (500 mV/div). change (6.25-18.75 -6.25 A) at: Bottom trace: load current (10 A/div). TP1 =+25C, VI = 53 V. Time scale: (0.5 mS/div) E Technical Specification 14 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Typical Characteristics 12 V, 25 A, 300 W BMR 457 0000/ 002 Output Current Derating - Open frame [A] 25 3.0 m/s 20 2.0 m/s 15 1.5 m/s 1.0 m/s 10 0.5 m/s 5 Nat. Conv. 0 0 20 40 60 80 100 [C] Av ailable load current v s. ambient air temperature and airf low at VI = 53 V. See Thermal Consideration section. Output Current Derating - Base plate Thermal Resistance - Base plate [A] 25 [C/W] 3.0 m/s 20 2.0 m/s 15 1.5 m/s 10 6 5 4 1.0 m/s 3 0.5 m/s 2 Nat. Conv. 1 5 0 0 0 20 40 60 80 100 [C] 0.0 Av ailable load current v s. ambient air temperature and airf low at VI = 53 V. See Thermal Consideration section. Output Current Derating - Base plate + Heat sink [A] 25 0.5 1.0 1.5 2.0 2.5 3.0 [m/s] Thermal resistance v s. airspeed measured at the conv erter. Tested in wind tunnel with airf low and test conditions as per the Thermal consideration section. VI = 53 V. Output Current Derating - Cold wall sealed box [A] 3.0 m/s 20 15 10 5 30 2.0 m/s 25 1.5 m/s 20 1.0 m/s 15 0.5 m/s 10 Nat. Conv. Tamb 85C 5 0 0 0 20 40 60 80 100 [C] Av ailable load current v s. base plate temperature. VI = 53 V. See Thermal Consideration section. Tested with Plate Fin Transv erse heatsink, height 0.23 In, P0114 Thermal Pad. 0 20 40 60 80 100 [C] Av ailable load current v s. base plate temperature at 85C ambient. VI = 53 V. See Thermal Consideration section. E Technical Specification 15 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Electrical Specification 12.45 V, 22 A, 261 W BMR457 0007/014 TP1 = -40 to +90C, V I = 36 to 75V, sense pins connected to output pins unless otherw ise specified under Conditions. Typical values given at: TP1 = +25C, V I = 53 V, max IO, unless otherw ise specified under Conditions. Additional Cin= 0.1 mF, Cout = 0.1 mF. See Operating Information section for selection of capacitor types. Configuration File: 19010-CDA 102 0315/014 Characteristics Conditions min typ VI Input voltage range V Ioff Turn-off input voltage Decreasing input voltage 32 V Ion Turn-on input voltage Increasing input voltage 34 CI Internal input capacitance PO Output pow er Efficiency max Unit 75 V 33 34 V 35 36 36 0 261 50% of max IO 94.7 max IO 94.5 50% of max IO, V I = 48 V 95.2 max IO, V I = 48 V 94.8 V F 11 W % Pd Pow er Dissipation max IO 15.3 Pli Input idling pow er IO = 0 A, V I = 53 V 3.5 W PRC Input standby pow er V I = 53 V (turned off with RC) 0.4 W fs Default sw itching frequency 0-100 % of max IO V Oi VO V tr ttr tr ts tf tRC Output voltage initial setting and accuracy Output adjust range TP1 = +25C, V I = 53 V, IO = 0 A 189 kHz 12.415 12.45 12.485 V 13.2 V Output voltage tolerance band 0-100 % of max IO 11.5 Line regulation max IO Load regulation Load transient voltage deviation Load transient recovery time Ramp-up time V I = 53 V, 1-100 % of max IO 450 V I = 53 V, Load step 25-75-25% of max IO, di/dt = 1 A/s, Cout = 2.2 mF OSCON type 12.7 V 100 250 mV 600 700 mV 350 mV 200 s 23 ms 10-100 % of max IO 38 ms RC start-up time max IO IO = 0 A max IO 0.7 6 26 ms s ms RC shut-dow n fall time max IO 3.5 ms (f rom RC of f to 10% of VO ) IO = 0 A 6 (f rom VI connection to 90% of VOi) V I shut-down fall time (f rom VI of f to 10% of VO ) IO Output current Ilim Current limit threshold V O = 10.8 V, TP1 < max TP1 Isc Short circuit current TP1 = 25C, see Note 1 Cout Recommended Capacitive Load TP1 = 25C, see Note 2 V Oac Output ripple & noise OVP Over voltage protection See ripple & noise section, V Oi TP1 = +25C, V I = 53 V, 10-100 % of max IO RC 180 6.9 Start-up time W 171 See operating information (f rom 10-90% of VOi) 21 0 Sink current, see Note 3 See operating information Trigger level Decreasing / Increasing RC-voltage s 22 A 26 A 24 25 0 2.2 6 mF 50 150 mVp-p 7 A 15.6 V 0.7 2.6/2.9 Note 1: OCP in hic-up mode Note 2: Low ESR-value Note 3: Sink current drawn by external device connected to the RC pin. Minimum sink current required to guarantee activated RC function. mA V E Technical Specification 16 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Typical Characteristics 12.45 V, 40 A / 476 W, two products in parallel 2 x BMR 457 0007/014 Efficiency Power Dissipation [%] 100 95 36 V 90 48 V 53 V 85 75 V 80 75 0 10 20 30 40 [W] 45 40 35 30 25 20 15 10 5 0 36 V 48 V 53 V 75 V 0 [A] 10 20 30 [A] 40 Dissipated power v s. load current and input v oltage at TP1 = +25C Ef f iciency vs. load current and input v oltage at TP1 = +25C Output Characteristics Current Limit Characteristics [V] [V] 13.0 12.6 12.5 11.0 12.4 36 V 12.3 48 V 12.2 53 V 12.1 75 V 36 V 9.0 48 V 7.0 53 V 75 V 5.0 12.0 11.9 3.0 11.8 40 0 10 20 30 40 Output v oltage v s. load current at TP1, TP3 = +25C Start-up Start-up enabled by connecting VI at: TP1 = +25C, VI = 53 V, IO = 40 A resistive load. 42 44 46 48 50 52 [A] [A] Output v oltage v s. load current at I O > max I O , TP1, TP3 = +25C Output Load Transient Response Top trace: output voltage (5 V/div.). Bottom trace: input voltage (50 V/div.). Time scale: (20 ms/div.). Output voltage response to load current step-change (10-30-10 A) at: TP1= +25C, VI = 53 V, CO = 2.2 mF. Top trace: output voltage (0.5 V/div.). Bottom trace: output current (20 A/div.). Time scale: (0.5 ms/div.). E Technical Specification 17 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Typical Characteristics 12.45 V, 22 A, 261 W BMR 457 0007/ 014 Output Current Derating - Open frame [A] 25 3.0 m/s 20 2.0 m/s 15 1.5 m/s 1.0 m/s 10 0.5 m/s 5 Nat. Conv. 0 0 20 40 60 80 100 [C] Av ailable load current v s. ambient air temperature and airf low at VI = 53 V. See Thermal Consideration section. Output Current Derating - Base plate Thermal Resistance - Base plate [C/W] [A] 25 6 3.0 m/s 5 20 2.0 m/s 15 1.5 m/s 1.0 m/s 10 0.5 m/s 5 Nat. Conv. 4 3 2 1 0 0 0 20 40 60 80 0.0 100 [C] Av ailable load current v s. ambient air temperature and airf low at VI = 53 V. See Thermal Consideration section. Output Current Derating - Base plate + Heat sink [A] 25 0.5 1.0 1.5 2.0 2.5 3.0 [m/s] Thermal resistance v s. airspeed measured at the conv erter. Tested in wind tunnel with airf low and test conditions as per the Thermal consideration section. VI = 53 V. Output Current Derating - Cold wall sealed box A 3.0 m/s 20 2.0 m/s 15 1.5 m/s 10 1.0 m/s 25 20 Tamb 85C 15 10 0.5 m/s 5 Nat. Conv. 0 0 20 40 60 80 100 [C] Av ailable load current v s. base plate temperature. VI = 53 V. See Thermal Consideration section. Tested with Plate Fin Transv erse heatsink, height 0.23 In, P0114 Thermal Pad. 5 0 0 20 40 60 80 100 [C] Av ailable load current v s. base plate temperature at 85C ambient. VI = 53 V. See Thermal Consideration section. E Technical Specification 18 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Electrical Specification 12.45 V, 25 A, 296 W BMR457 0011/017 TP1 = -40 to +90C, V I = 40 to 60 V, sense pins connected to output pins unless otherw ise specified under conditions. Typical values given at: TP1 = +25C, V I = 53 V, max IO,, unless otherw ise specified under conditions. Additional Cin= 0.1 mF, Cout = 0.1 mF. See Operating Information section for selection of capacitor types. Configuration File: 19010-CDA1020315/017 Characteristics Conditions min typ VI Input voltage range V Ioff Turn-off input voltage Decreasing input voltage 36 V Ion Turn-on input voltage Increasing input voltage 38 CI Internal input capacitance PO Output pow er Efficiency max Unit 60 V 37 38 V 39 40 40 0 296 50% of max IO 95.2 max IO 94.6 50% of max IO, V I = 48 V 95.1 max IO, V I = 48 V 94.5 V F 11 W % Pd Pow er Dissipation max IO 17 Pli Input idling pow er IO = 0 A, V I = 53 V 4.4 W PRC Input standby pow er V I = 53 V (turned off with RC) 0.4 W fs Sw itching frequency 0-100 % of max IO 180 kHz V Oi VO V tr ttr tr ts tf tRC Output voltage initial setting and accuracy Output adjust range TP1 = +25C, V I = 53 V, IO = 0 A See operating information 6.9 Output voltage tolerance band 0-100 % of max IO 11.5 Line regulation max IO Load regulation Load transient voltage deviation Load transient recovery time Ramp-up time V I = 53 V, 1-100 % of max IO (f rom 10-90% of VOi) Start-up time 12.45 400 V I = 53 V, Load step 25-75-25% of max IO, di/dt = 1 A/s Cout = 2.5 mF OSCON type W 12.485 V 13.2 V 12.7 V 50 220 mV 500 700 mV 300 mV(AC) 250 s 23 ms 10-100 % of max IO 38 ms RC start-up time max IO IO = 0 A max IO 0.7 6 14 ms s ms RC shut-dow n fall time max IO 4 ms (f rom RC of f to 10% of VO ) IO = 0 A 6 (f rom VI connection to 90% of VOi) V I shut-down fall time (f rom VI of f to 10% of VO ) IO Output current Ilim Current limit threshold TP1 < max TP1 Isc Short circuit current TP1 = 25C, see Note 1 Cout Recommended Capacitive Load TP1 = 25C, see Note 2 V Oac Output ripple & noise OVP Over voltage protection See ripple & noise section, V Oi TP1 = +25C, V I = 53 V, 10-100 % of max IO RC 12.415 24 0 Sink current, see Note 3 See operating information Trigger level See operating information s 25 A 33 A 27 30 0 2.5 10 mF 70 140 mVp-p 11 A 15.6 V 0.7 2.6/2.9 Note 1: OCP in hic-cup mode, rms value were recorded. Note 2: Low ESR-value Note 3: Sink current drawn by external device connected to the RC pin. Minimum sink current required to guarantee activated RC function. mA V E Technical Specification 19 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Typical Characteristics 12.45 V, 45 A, 533 W, 2 products in parallel 2 x BMR 457 00 11/017 Efficiency Power Dissipation [%] 100 [W] 20 95 16 40 V 90 53 V 85 40 V 12 53 V 8 60 V 60 V 80 4 75 0 0 10 20 30 40 50 [A] 0 10 20 30 40 50 [A] Dissipated power v s. load current and input v oltage at TP1 = +25C. Ef f iciency vs. load current and input v oltage at TP1 = +25C. Output Characteristics Current Limit Characteristics [V] 12.60 [V] 15.00 12.40 40 V 12.00 53 V 9.00 60 V 6.00 40 V 53 V 12.20 12.00 60 V 3.00 11.80 0.00 0 12 24 36 48 60 [A] Output v oltage v s. load current at TP1 = +25C. Start-up Start-up enabled by connecting VI at: TP1 = +25C, VI = 53 V, IO = 25 A resistive load. 20 30 40 50 60 70 [A] Output v oltage v s. load current at I O > max I O , TP1 = +25C. Output Load Transient Response Top trace: output voltage (5 V/div). Bottom trace: input voltage (50 V/div). Time scale: (10 mS/div) Output voltage response to load current step- Top trace: Output voltage (500 mV/div). change (6.25-18.75 -6.25 A) at: Bottom trace: load current (10 A/div). TP1 =+25C, VI = 53 V. Time scale: (0.5 mS/div) E Technical Specification 20 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Typical Characteristics 12.45 V, 25 A, 296 W BMR 457 00 11/017 Output Current Derating - Open frame [A] 25 3.0 m/s 20 2.0 m/s 15 1.5 m/s 1.0 m/s 10 0.5 m/s 5 Nat. Conv. 0 0 20 40 60 80 100 [C] Av ailable load current v s. ambient air temperature and airf low at VI = 53 V. See Thermal Consideration section. Output Current Derating - Base plate Thermal Resistance - Base plate [A] 25 [C/W] 3.0 m/s 20 2.0 m/s 15 1.5 m/s 10 6 5 4 1.0 m/s 3 0.5 m/s 2 Nat. Conv. 1 5 0 0 0 20 40 60 80 100 [C] 0.0 Av ailable load current v s. ambient air temperature and airf low at VI = 53 V. See Thermal Consideration section. Output Current Derating - Base plate + Heat sink [A] 25 0.5 1.0 1.5 2.0 2.5 3.0 [m/s] Thermal resistance v s. airspeed measured at the conv erter. Tested in wind tunnel with airf low and test conditions as per the Thermal consideration section. VI = 53 V. Output Current Derating - Cold wall sealed box [A] 3.0 m/s 20 15 10 5 30 2.0 m/s 25 1.5 m/s 20 1.0 m/s 15 0.5 m/s 10 Nat. Conv. Tamb 85C 5 0 0 0 20 40 60 80 100 [C] Av ailable load current v s. base plate temperature. VI = 53 V. See Thermal Consideration section. Tested with Plate Fin Transv erse heatsink, height 0.23 In, P0114 Thermal Pad. 0 20 40 60 80 100 [C] Av ailable load current v s. base plate temperature at 85C ambient. VI = 53 V. See Thermal Consideration section. E Technical Specification 21 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB EMC Specification Conducted EMI measured according to EN55022, CISPR 22 and FCC part 15J (see test set-up). See Design Note 009 for detailed information. The fundamental switching frequency is 180 kHz for BMR 457 at VI = 53 V, max IO. Conducted EMI Input terminal value (typ) 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. EMI without filter Optional external filter for class B Suggested external input filter in order to meet class B in EN 55022, CISPR 22 and FCC part 15J. 0 C4 L1 C1 L2 + C3 C2 Module - C5 + - R Filter components: C1 = 1 F C2 = 1 F + 220 F C3 = 1 F + 220 F C4 = 2.2 nF C5 = 2.2 nF L1 = 0.81 mH L2 = 0.81 mH A ground layer will increase the stray capacitance in the PWB and improve the high frequency EMC performance. Output ripple and noise Output ripple and noise measured according to figure below. See Design Note 022 for detailed information. 0 Output ripple and noise test setup EMI with filter E Technical Specification 22 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W Operating information Power Management Overview This product is equipped with a PMBus interface to to allow the product to be configured,and communicate with system controllers. 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, duty cycle and internal temperature. 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB like a semiconductor or mechanical switch. The RC pin has an internal pull up resistor. The remote control functions can also be configured using the PMBus The device should be capable of sinking 0.7 mA. When the RC pin is left open, the voltage generated on the RC pin is max 6 V. The standard product is provided with "negative logic" remote control and will be off until the RC pin is connected to the -In. To turn on the product the voltage between RC pin and -In should be less than 1 V. 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. To turn off the product the RC pin should be left open for a minimum of time 150 s, the same time requirement applies when the product shall turn on. In situations where it is desired to have the product to power up automatically without the need for control signals or a switch, the RC pin can be wired directly to -In or disabled via the 0xE3 command. The logic option for the primary remote control is configured via 0xE3 command using the PMBus. Input Voltage The BMR457 consists of two different product families designed for two different input voltage ranges, 36 to 75 Vdc and 40 to 60 Vdc, see ordering information. Remote Control (secondary side) The CTRL-pin can be configured as remote control via the PMBus interface. In the default configuration the CTRL-pin is disabled and floating. The output can be configured to internal pull-up to 3.3 V using the MFR_MULTI_PIN_CONFIG (0xF9) PMBus command. The CTRL-pin can be left open when not used. The logic options for the secondary remote control can be positive or negative logic. The logic option for the secondary remote control is configured via ON_OFF_CONFIG (0x02) command using the PMBus interface, see also MFR_MULTI_PIN_CONFIG section. The input voltage range 36 to 75 Vdc meets the requirements of the European Telecom Standard ETS 300 132-2 for normal input voltage range in -48 and -60 Vdc systems, -40.5 to -57.0 V and -50.0 to -72 V respectively. At input voltages exceeding 75 V, the power loss will be higher than at normal input voltage and TP1 must be limited to absolute max +125C. The absolute maximum continuous input voltage is 80 Vdc. The input voltage range 40 to 60 Vdc meets the requirements for normal input voltage range in -48 V systems, -40.5 to -57.0 V. At input voltages exceeding 60 V, the power loss will be higher than at normal input voltage and TP1 must be limited to absolute max +125C. The absolute maximum continuous input voltage is 65 Vdc. Turn-off Input Voltage The product monitors the input voltage and will turn on and turn off at predetermined levels. The minimum hysteresis between turn on and turn off input voltage is 2 V. The turn on and turn off levels of the product can be reconfigured using the PMBus interface Remote Control (RC) The products are fitted with a configurable remote control function. The primary remote control is referenced to the primary negative input connection (-In). The RC function allows the converter to be turned on/off by an external device 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. Minimum recommended external input capacitance is 100 F. The performance in some applications can be enhanced by addition of external capacitance as described under External Decoupling Capacitors. External Decoupling 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 recommended minimum capacitance on the output is 100 F. The most effective technique is to locate low ESR ceramic and electrolytic capacitors as close to the load as possible, using several parallel capacitors 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 any high frequency noise at the E Technical Specification 23 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W load. It is equally important to use low resistance and low inductance PWB layouts and cabling. External decoupling capacitors will become part of the product's control loop. The control loop is optimized for a wide range of external capacitance and the maximum recommended value that could be used without any additional analysis is found in the electrical specification. The ESR of the capacitors is a very important parameter. Stable operation is guaranteed with a verified ESR value of >10 m across the output connections. For further information please contact your local Ericsson Power Modules representative. Parallel Operation (Droop Load Share, DLS) The BMR457 DLS products are variants that can be connected in parallel. The products have a pre-configured voltage droop: The stated output voltage set point is at no load. The output voltage will decrease when the load current is increased. The voltage will droop 0.6 V while load reaches max load. This feature allows the products to be connected in parallel and share the current with 10% accuracy. Up to 90% of max output current can be used from each product. When running DLS-products in parallel command (0xF9) must be set according to MFR_MULTI_PIN_CONFIG. To prevent unnecessary current stress, changes of the output voltage must be done with the output disabled. This must be considered for all commands that affect the output voltage. Feed Forward Capability The BMR457 products have a feed forward function implemented that can handle sudden input voltage changes. The output voltage will be regulated during an input transient and will typically stay within 10% when an input transient is applied. PMBus configuration and support The product provides a PMBus digital interface that enables the user to configure many aspects of the device operation as well as monitor the input and output parameters. Please contact your local Ericsson Power Modules representative for appropriate SW tools to down-load new 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB configurations. Output Voltage Adjust using PMBus The output voltage of the product can be reconfigured using the PMBus interface. Margin Up/Down Controls These controls allow the output voltage to be momentarily adjusted, either up or down, by a nominal 10%. 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. The margin up and down levels of the product can be reconfigured using the PMBus interface. Soft-start Power Up The default rise time of the ramp up is 10 ms. When starting by applying input voltage the control circuit boot-up time adds an additional 15 ms delay. The soft-start power up of the product can be reconfigured using the PMBus interface. The DLS variants have a pre-configured ramp up time of 25 ms. 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. The remote sense circuitry will compensate for up to 10% voltage drop between output pins and the point of load. If the remote sense is not needed +Sense should be connected to +Out and -Sense should be connected to -Out. To be able to use remote sense the converter must be equipped with a Communication interface. Temperature Protection (OTP, UTP) The products are protected from thermal overload by an internal temperature shutdown protection. When TP1 as defined in thermal consideration section is exceeded the product will shut down. The product will make continuous attempts to start up (non-latching mode) and resume normal operation automatically when the temperature has dropped below the temperature threshold set in the command OT_WARN_LIMIT (0x51); the hysteresis is defined in general electrical specification. The OTP and hysteresis of the product can be re-configured using the PMBus interface. The product has also an under temperature protection. The OTP and UTP fault limit and fault response can be configured via the PMBus. Note: using the fault response "continue without interruption" may cause permanent damage to the product Over Voltage Protection (OVP) The product includes over voltage limiting circuitry for protection of the load. The default OVP limit is 30% above the nominal output voltage. If the output voltage exceeds the OVP E Technical Specification 24 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 1 0 1 Stand alone, Power Good Push-pull, PMBus Control (0x04) Stand alone, Power Good Push-pull, Sec RC w/ pull up/down (0x05) Stand alone, Power Good High Z when active, PMBus Control (0x24) Stand alone, Power Good High Z when active, Sec RC w/ pull up/down (0x25) 1) When not used with PMBus, the CTRL input can be internally pulled up or down depending on if it is active high or low. When active low it will be pulled up and vice versa 1 Stand alone, Sec RC w/ pull up/down (0x01) Bit 5 Power Good High Z when active Bit 4 Tracking enable (N/A) Bit 3 External reference (N/A) Bit 2 Power Good Enable Bit 1 Reserved Bit 0 Secondary Remote Control Pull up/down resistor enable 1) 1 Stand alone, PMBus Control (0x00) Power Good The product provides 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 Power Good signal is by default configured as active low, Push-pull and can be reconfigured via the PMBus interface. The Power Good output can be configured as Push-pull or "High Z when active" to permit AND'ing of parallel devices. It is not recommended to Bit 7:6 00 = Stand alone 01 = Slave (N/A) 10 = DLS 11 = Master (N/A) DLS, Power Good High Z when active, Sec RC w/ pull up/down (0xA7) Pre-bias Start-up Capability The product has a Pre-bias start up functionality and will not sink current during start up if a Pre-bias source is present at the output terminals. If the Pre-bias voltage is lower than the target value set in VOUT_COMMAND (0x21), the product will ramp up to the target value. If the Pre-bias voltage is higher than the target value set in VOUT_COMMAND (0x21), the product will ramp down to the target value and in this case sink current for a limited of time set in the command TOFF_MAX_WARN_LIMIT (0x66). MFR_MULTI_PIN_CONFIG The MFR_MULTI_PIN_CONFIG (0xF9) command enables or disables different functions inside the product. This command can be configured according to the table for different functions. DLS, Power Good High Z when active, PMBus Control (0xA6) Input Over/Under voltage protection The input of the product can be protected from high input voltage and low input voltage. The over/under-voltage fault level and fault response can be configured via the PMBus interface. Switching frequency adjust using PMBus The switching frequency is set to 180 kHz as default but this can be reconfigured via the PMBus interface. The product is optimized at this frequency but can run at lower and higher frequency, (170 kHz - 190 kHz). The electrical performance can be affected if the switching frequency is changed. DLS, Power Good Push-pull, Sec RC w/ pull up/down (0x87) The over current protection of the product can be reconfigured using the PMBus interface. Synchronization, Tracking and External reference This product does not support synchronization, tracking or external reference. DLS, Power Good Push-pull, PMBus Control (0x86) Droop Load Share variants (DLS) will enter hic-up mode, with a trip voltage, 0.04xVout, set in command IOUT_OC_LV_FAULT_LIMIT (0x48). Above the trip voltage in command (0x48) the product will continue operate while maintaining the output current at the value set by IOUT_OC_FAULT_LIMIT (0x46). use Push-pull when paralleling PG-pins, see MFR_MULTI_PIN_CONFIG. DLS, Sec RC w/ pull up/down (0x83) Over Current Protection (OCP) The product includes current limiting circuitry for protection at continuous overload. The default setting for the product is hicup mode if the maximum output current is exceeded and the output voltage is below 0.3xVout, set in command IOUT_OC_LV_FAULT_LIMIT (0x48). Above the trip voltage value in command 0x48 the product will continue operate while maintaining the output current at the value set by IOUT_OC_FAULT_LIMIT (0x46). The load distribution should be designed for the maximum output short circuit current specified. (c) Ericsson AB DLS, PMBus Control (0x82) limit, the product can respond in different ways. The default response from an over voltage fault is to immediately shut down. 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. The OVP fault level and fault response can be re-configured using the PMBus interface. 1/28701-FGC 101 1835 revD May 2015 The MFR_MULTI_PIN_CONFIG can be reconfigured using the PMBus interface. Default configuration is set to Power Good Push-Pull (0x04) for stand alone variants and DLS Power Good Push-Pull (0x86) for Droop Load Share variants. User customized settings This product has 2 data storage set: Default data (Ericsson factory) and User data. The User data set's priority is higher than the Default data. The User data area is empty while shipped to customer. After boot-up, if the controller found no E Technical Specification 25 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB data stored in User data area, it will load Default data instead. Customer can change the RAM data and store the changes into flash memory by PMBUS Store_User_All, next power cycle will load the User data into RAM for execute. Store_Default_All is write protected to ensure the factory settings is always available for recovery. 13.4 13.4 13.2 13.2 13.0 13.0 12.8 12.8 Vout [V] Vout [V] Output Voltage Regulation The BMR457 products are designed to be fully regulated within the plotted area. Operating outside this area is not recommended. 12.6 12.4 12.6 12.4 12.2 12.2 12.0 12.0 35 45 55 65 75 Vin [V] Vin range: 36-75Vdc BMR457xx04/xxx 35 40 45 50 55 60 65 Vin [V] Vin range:40-60Vdc BMR457xx00/xxx For products with base plate used in a sealed box/cold wall application, cooling is achieved mainly by conduction through the cold wall. The Output Current Derating graphs are found in the output section for each model. The product is tested in a sealed box test set up with ambient temperatures 85, 55 and 25C. See Design Note 028 for further details. Thermal Consideration General The product is designed to operate in different thermal environments and sufficient cooling must be provided to ensure reliable operation. For products mounted on a PWB without a heat sink attached, 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 VI =53 V. The product is tested on a 254 x 254 mm, 35 m (1 oz), 16-layer test board mounted vertically in a wind tunnel with a cross-section of 608 x 203 mm. Definition of product operating temperature The product operating temperature is used to monitor the temperature of the product, and proper thermal conditions can be verified by measuring the temperature at positions P1, P2, P3 and P4. The temperature at these positions (TP1, TP2, TP3, TP4) 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 TP1, measured at the reference point P1 (both for openframe and base plate versions) are not allowed and may cause permanent damage. E Technical Specification 26 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W Position Description Max temperature P1 PWB (reference point, open TP1=125 C frame and base-plate) P2 Opto-coupler TP2=105 C P3 Secondary MOSFET TP3=125 C P4 Magnetic Core TP4=125 C TOP View Bottom View Open frame Open frame and Baseplate (Best air flow direction is from negative to positive pins.) Ambient Temperature Calculation For products with base plate the maximum allowed ambient temperature can be calculated by using the thermal resistance. 1. The power loss is calculated by using the formula ((1/) - 1) x output power = power losses (Pd). = efficiency of product. E.g. 95 % = 0.95 2. Find the thermal resistance (Rth) in the Thermal Resistance graph found in the Output section for each model. Note that the thermal resistance can be significantly reduced if a heat sink is mounted on the top of the base plate. Calculate the temperature increase (T). T = Rth x Pd 3. Max allowed ambient temperature is: Max TP1 - T. E.g. BMR 457 0004/001 at 2m/s: 1 ) - 1) x 264 W = 15.4 W 0.945 2. 15.4 W x 3.4C/W = 52C 1. (( 3. 125 C - 52C = max ambient temperature is 73C The actual temperature will be dependent on several factors 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB such as the PWB size, number of layers and direction of airflow. Connections (Top view) Pin 1 Designation +In Function Positive Input 2 RC Remote Control 4 -In Negative Input 5 -Out Negative Output 6 S+ Positive Remote Sense 7 S- Negative Remote Sense 8 SA0 Address pin 0 9 SA1 Address pin 1 10 SCL PMBus Clock 11 SDA PMBus Data 12 PG Power Good output 13 DGND PMBus ground 14 SALERT PMBus alert signal 15 16 CTRL +Out PMBus remote control Positive Output Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) SECSUND Approved 1 (4) No. Checked 31/1301-BMR 456+ Uen Technical Specification 27 Date BMR457 series SEC/D (Julia You) Fully regulated Advanced EMAOLIIBus Converters 2012-06-25 Input 36-75 V, Output up to 25 A / 300 W Rev Reference 1/28701-FGC 101 1835 revD May 2015 B (c) Ericsson AB PMBus Interface 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 1.2 and includes an SALERT line to help mitigate bandwidth limitations related to continuous fault monitoring. The product supports 100 kHz and 400 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: Eq. 7 = R P C p 1us where Rp is the pull-up resistor value and Cp is the bus load. The maximum allowed bus load is 400 pF. The pull-up resistor should be tied to an external supply between 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. Schematic of connection of address resistors. SA0/SA1 Index 0 It is recommended to always use PEC (Packet Error Check) when communicating via PMBus. For these products it is a requirement to use PEC when using Send Byte to the device, for example command "RESTORE_DEFAULT_ALL". Monitoring via PMBus A system controller (host device) can monitor a wide variety of parameters through the PMBus interface. The controller can monitor fault conditions by monitoring the SALERT pin, which will be asserted when any number of pre-configured fault or warning conditions occur. The system controller can also continuously monitor any number of power conversion parameters including but not limited to the following: * * * * * * Input voltage Output voltage Output current Internal junction temperature Switching frequency (Monitors the set value not actual frequency) Duty cycle Software Tools for Design and Production For this products Ericsson provides software for configuring and monitoring via the PMBus interface. For more information please contact your local Ericsson sales representative. PMBus Addressing The following figure and table show recommended resistor values with min and max voltage range for hard-wiring PMBus addresses (series E12, 1% tolerance resistors suggested): RSA0/RSA1 [k] 10 1 22 2 33 3 47 4 68 5 100 6 150 7 220 The SA0 and SA1 pins can be configured with a resistor to GND according to the following equation. PMBus Address = 8 x (SA0value) + (SA1 value) If the calculated PMBus address is 0, 11 or 12, PMBus address 127 is assigned instead. From a system point of view, the user shall also be aware of further limitations of the addresses as stated in the PMBus Specification. It is not recommended to keep the SA0 and SA1 pins left open. 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 Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 31/1301-BMR 456+ Uen Technical Specification 28 SECSUND Approved 2 (4) No. Checked Date BMR457 series SEC/D (Julia You) Fully regulated Advanced EMAOLIIBus Converters 2012-06-25 Input 36-75 V, Output up to 25 A / 300 W stretching. Additionally, a bus-free time delay between every SMBus transmission (between every stop & start condition) must occur. Refer to the SMBus specification, for SMBus electrical and timing requirements. Note that an additional delay of 5 ms has to be inserted in case of storing the RAM content into the internal non-volatile memory. Rev Reference 1/28701-FGC 101 1835 revD May 2015 B (c) Ericsson AB Designation Cmd Prot IOUT_OC_FAULT_RESPONSE 47h No IOUT_OC_LV_FAULT_LIMIT 48h No IOUT_OC_WARN_LIMIT 4Ah No OT_FAULT_LIMIT 4Fh No OT_FAULT_RESPONSE 50h No OT_WARN_LIMIT 51h No UT_WARN_LIMIT 52h No UT_FAULT_LIMIT 53h No UT_FAULT_RESPONSE 54h No VIN_OV_FAULT_LIMIT 55h No VIN_OV_FAULT_RESPONSE 56h No VIN_OV_WARN_LIMIT 57h No Standard PMBus Commands VIN_UV_WARN_LIMIT 58h No Control Commands VIN_UV_FAULT_LIMIT 59h No No VIN_UV_FAULT_RESPONSE 5Ah No 5Eh No 5Fh No PMBus Commands 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. Designation OPERATION Cmd 01h Prot ON_OFF_CONFIG 02h No POWER_GOOD_ON WRITE_PROTECT 10h No POWER_GOOD_OFF Time setting Commands Output Commands VOUT_MODE 20h No TON_DELAY 60h No 61h No VOUT_COMMAND 21h No TON_RISE VOUT_TRIM 22h No TON_MAX_FAULT_LIMIT 62h No VOUT_CAL_OFFSET 23h Yes TON_MAX_FAULT_RESPONSE 63h No VOUT_MAX 24h No TOFF_DELAY 64h No VOUT_MARGIN_HIGH 25h No TOFF_FALL 65h No 66h No VOUT_MARGIN_LOW 26h No TOFF_MAX_WARN_LIMIT VOUT_TRANSITION_RATE 27h No Status Commands (Read Only) VOUT_SCALE_LOOP 29h Yes CLEAR_FAULTS 03h No VOUT_SCALE_MONITOR 2Ah Yes STATUS_BYTES 78h No 79h No MAX_DUTY 32h No STATUS_WORD FREQUENCY_SWITCH 33h No STATUS_VOUT 7Ah No 7Bh No VIN_ON 35h No STATUS_IOUT VIN_OFF 36h No STATUS_INPUT 7Ch No IOUT_CAL_GAIN 38h Yes STATUS_TEMPERATURE 7Dh No IOUT_CAL_OFFSET 39h Yes STATUS_CML 7Eh No Fault Commands STATUS_OTHER 7Fh No VOUT_OV_FAULT_LIMIT 40h No Monitior Commands (Read Only) VOUT_OV_FAULT_RESPONSE 41h No READ_VIN 88h No 8Bh No VOUT_OV_WARN_LIMIT 42h No READ_VOUT VOUT_UV_WARN_LIMIT 43h No READ_IOUT 8Ch No 8Dh No VOUT_UV_FAULT_LIMIT 44h No READ_TEMPERATURE_1 VOUT_UV_FAULT_RESPONSE 45h No READ_TEMPERATURE_2 8Eh No IOUT_OC_FAULT_LIMIT 46h No READ_DUTY_CYCLE 94h No Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) No. 31/1301-BMR 456+ Uen Technical Specification 29 SECSUND Approved 3 (4) Checked Date BMR457 series SEC/D (Julia You) Fully regulated Advanced EMAOLIIBus Converters 2012-06-25 Input 36-75 V, Output up to 25 A / 300 W Designation Cmd Prot READ_FREQUENCY 95h No Configuration and Control Commands USER_DATA_00 B0h No PMBUS_REVISION 98h No MFR_ID 99h Yes MFR_MODEL 9Ah Yes MFR_REVISION 9Bh Yes MFR_LOCATION 9Ch Yes MFR_DATE 9Dh Yes MFR_SERIAL 9Eh Yes STORE_DEFAULT_ALL 11h Yes RESTORE_DEFAULT_ALL 12h No STORE_USER_ALL 15h No RESTORE_USER_ALL 16h No CAPABILITY 19h No Product Specific Commands MFR_POWER_GOOD_POLARITY D0h No MFR_VIN_SCALE_MONITOR D3h Yes MFR_SELECT_TEMP_SENSOR DCh No MFR_VIN_OFFSET DDh Yes MFR_VOUT_OFFSET_MONITOR DEh Yes MFR_TEMP_OFFSET_INT E1h No MFR_REMOTE_TEMP_CAL E2h No MFR_REMOTE_CTRL E3h No MFR_DEAD_BAND_DELAY E5h Yes MFR_TEMP_COEFF E7h Yes MFR_DEBUG_BUFF F0h No MFR_SETUP_PASSWORD F1h No MFR_DISABLE_SECURITY_ONCE F2h No MFR_DEAD_BAND_IOUT_THRESHOLD F3h Yes MFR_SECURITY_BIT_MASK F4h Yes MFR_PRIMARY_TURN F5h Yes MFR_SECONDARY_TURN MFR_ILIM_SOFTSTART F6h F8h Yes No MFR_MULTI_PIN_CONFIG F9h No MFR_DEAD_BAND_VIN_THRESHOLD FAh Yes MFR_DEAD_BAND_VIN_IOUT_HYS FBh Yes MFR_RESTART FEh No Identification Commands (Read Only) Supervisory Commands Rev Reference 1/28701-FGC 101 1835 revD May 2015 B (c) Ericsson AB Notes: Cmd, is short for Command. Prot, is short for commands that are protected with security mask. E Technical Specification 30 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (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 31 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (c) Ericsson AB Mechanical Information - Hole Mount, Base Plate 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 32 BMR457 series Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W 1/28701-FGC 101 1835 revD May 2015 (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. Ericsson Internal PRODUCT SPEC. E Prepared (also subject responsible if other) 1 (5) No. 5/1301 - BMR 457 Uen Technical Specification 33 EPEIHLI Approved Checked Date BMR457 series SEC/D (Julia You) Fully regulated Advanced See 1 Bus Converters 2012-06-25 Input 36-75 V, Output up to 25 A / 300 W Rev Reference 1/28701-FGC 101 1835 revD May 2015 C (c) Ericsson AB Soldering Information - Surface Mounting Lead-free (Pb-free) solder processes The surface mount product is intended for forced convection or vapor phase reflow soldering in SnPb and Pb-free processes. For Pb-free solder processes, a pin temperature (TPIN) in excess of the solder melting temperature (TL, 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. 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. General reflow process specifications SnPb eutectic Pb-free Average ramp-up (TPRODUCT) 3C/s max 3C/s max 183C 221C 60 s 60 s 210C 235C Typical solder melting (liquidus) temperature TL Minimum reflow time above TL Minimum pin temperature TPIN Peak product temperature TPRODUCT 225C 260C 6C/s max Maximum time 25C to peak 6 minutes 8 minutes Temperature Pin profile Time in preheat / soak zone Time 25C to peak Time in reflow For SnPb solder processes, the product is qualified for MSL 1 according to IPC/JEDEC standard J-STD-020C. Pb-free solder processes 6C/s max TL SnPb solder processes During reflow TPRODUCT must not exceed 225 C at any time. Average ramp-down (TPRODUCT) TPRODUCT maximum TPIN minimum Maximum Product Temperature Requirements Top of the product PWB near pin 2 is chosen as reference location for the maximum (peak) allowed product temperature (TPRODUCT) since this will likely be the warmest part of the product during the reflow process. Product profile Time For Pb-free solder processes, the product is qualified for MSL 3 according to IPC/JEDEC standard J-STD-020C. During reflow TPRODUCT 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 Minimum Pin Temperature Recommendations Pin number 5 chosen as reference location for the minimum pin Top of PWB near pin 2 for measurement of maximum product temperature, TPRODUCT temperature recommendation since this will likely be the coolest solder joint during the reflow process. SnPb solder processes For SnPb solder processes, a pin temperature (TPIN) in excess of the solder melting temperature, (TL, 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 5 for measurement of minimum pin (solder joint) temperature, TPIN Ericsson Internal PRODUCT SPEC. E Prepared (also subject responsible if other) 2 (5) No. EPEIHLI Approved Checked 5/1301 - BMR 457 Uen Technical Specification 34 Date BMR457 series SEC/D (Julia You) Fully regulated Advanced See 1 Bus Converters 2012-06-25 Input 36-75 V, Output up to 25 A / 300 W Rev Reference 1/28701-FGC 101 1835 revD May 2015 C (c) Ericsson AB 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 injection molded trays (Jedec design guide 4.10D standard) and in antistatic trays. Tray Specifications - SMD /Pin in paste Material Antistatic PPE Surface resistance 10 < Ohm/square < 10 The trays can be baked at maximum 125C for 48 hours 17.40 mm 0.685 [ inch] Bakability Tray thickness 5 12 Box capacity 100 products (5 full trays/box) Tray weight 125 g empty, 605 g full tray JEDEC standard tray for 2x5 = 10 products. All dimensions in mm [inch] Tolerances: X.x 0.26 [0.01], X.xx 0.13 [0.005] Note: pick up positions refer to center of pocket. See mechanical drawing for exact location on product. Ericsson Internal PRODUCT SPEC. E Prepared (also subject responsible if other) EPEIHLI Approved Checked 5/1301 - BMR 457 Uen Technical Specification 35 Date BMR457 series SEC/D (Julia You) Fully regulated Advanced See 1 Bus Converters 2012-06-25 Input 36-75 V, Output up to 25 A / 300 W Tray Specifications - Through hole Version Material Surface resistance Bakability Tray capacity Box capacity Weight PE Foam, dissipative 5 10 < Ohm/square < 10 3 (5) No. 12 The trays are not bakeable 25 converters/tray 75 products (3 full trays/box) Product - Open frame 790 g full tray, 140g empty tray Product - Base plate option 1090 g full tray, 140 g empty tray Rev Reference 1/28701-FGC 101 1835 revD May 2015 C (c) Ericsson AB Ericsson Internal PRODUCT SPEC. E Prepared (also subject responsible if other) 4 (5) No. 5/1301 - BMR 457 Uen Technical Specification 36 EPEIHLI Approved Checked Date BMR457 series SEC/D (Julia You) Fully regulated Advanced See 1 Bus Converters 2012-06-25 Input 36-75 V, Output up to 25 A / 300 W Rev Reference 1/28701-FGC 101 1835 revD May 2015 C (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 500 15 min/0-1 min Cold (in operation) IEC 60068-2-1 Ad Temperature TA 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 Isopropyl alcohol 55C 35C 35C Mechanical shock IEC 60068-2-27 Ea Peak acceleration Duration 100 g 6 ms J-STD-020C Level 1 (SnPb-eutectic) Level 3 (Pb Free) 225C 260C MIL-STD-202G, method 108A Duration 1000 h IEC 60068-2-20 Tb, method 1A Solder temperature Duration 270C 10-13 s 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 2 0.07 g /Hz 10 min in each direction Moisture reflow sensitivity 1 Operational life test Resistance to soldering heat 2 Robustness of terminations IEC 60068-2-58 test Td 1 IEC 60068-2-20 test Ta 2 Solderability 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: BMR4570006/013 BMR4570012/017 BMR4570006/014 BMR4573104/001 BMR4570001/002 BMR4573100/002 BMR4570105/001 BMR4570004/001 BMR4570012/016 BMR4570104/001 BMR4573111/017 BMR4573105/001 BMR4570005/001