Dual-Channel, 2.5 kV Isolators with Integrated DC-to-DC Converter ADuM5200W/ADuM5201W/ADuM5202W Automotive Products FUNCTIONAL BLOCK DIAGRAMS VDD1 1 OSC REG RECT 16 VISO 15 GNDISO 14 VIA/VOA VIB/VOB 4 13 VIB/VOB RCIN 5 12 NC 11 VSEL 10 VE2/NC 9 GNDISO GND1 2 VIA/VOA 3 2-CHANNEL iCOUPLER CORE RCSEL 6 ADuM5200W/ ADuM5201W/ ADuM5202W VE1/NC 7 GND1 8 10436-001 Qualified for automotive applications isoPower integrated, isolated dc-to-dc converter Regulated 3.3 V or 5 V output Up to 400 mW output power Dual, dc-to-25 Mbps (NRZ) signal isolation channels 16-lead SOIC package with 7.6 mm creepage High temperature operation: 105C maximum High common-mode transient immunity: >25 kV/s Safety and regulatory approvals UL recognition 2500 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice #5A) VDE certificate of conformity IEC 60747-5-2 (VDE 0884, Part 2):2003-01 VIORM = 560 VPEAK Figure 1. VIA APPLICATIONS VIB Industrial field bus isolation Power supply start-up bias and gate drives Isolated sensor interfaces Automotive systems 3 14 ADuM5200W 4 13 VOA VOB 10436-002 FEATURES Figure 2. ADuM5200W VOB The ADuM5200W/ADuM5201W/ADuM5202W1 are dualchannel digital isolators with isoPower(R), an integrated, isolated dcto-dc converter. Based on the Analog Devices, Inc., iCoupler(R) technology, the dc-to-dc converter provides up to 500 mW of regulated, isolated power at either 5.0 V or 3.3 V from a 5.0 V input supply, or 3.3 V from a 3.3 V supply at the power levels shown in Table 1. These devices eliminate the need for a separate, isolated dc-to-dc converter in low power isolated designs. The iCoupler chip-scale transformer technology is used to isolate the logic signals and for the magnetic components of the dc-to-dc converter. The result is a small form factor, total isolation solution. Table 1. Power Levels The ADuM5200W/ADuM5201W/ADuM5202W isolators provide two independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide for more information). Input Voltage (V) 5.0 5.0 3.3 3 14 ADuM5201W 4 13 VOA VIB 10436-003 VIA GENERAL DESCRIPTION Figure 3. ADuM5201W VOB 3 14 ADuM5202W 4 13 VIA VIB 10436-004 VOA Figure 4. ADuM5202W Output Voltage (V) 5.0 3.3 3.3 Output Power (mW) 400 330 122 isoPower uses high frequency switching elements to transfer power through its transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions standards. See the AN-0971 Application Note for board layout recommendations. 1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Rev. 0 Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 (c)2012 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com ADuM5200W/ADuM5201W/ADuM5202W Automotive Products TABLE OF CONTENTS Features .............................................................................................. 1 Truth Table .................................................................................. 14 Applications ....................................................................................... 1 Typical Performance Characteristics ........................................... 15 General Description ......................................................................... 1 Terminology .................................................................................... 18 Functional Block Diagrams ............................................................. 1 Applications Information .............................................................. 19 Revision History ............................................................................... 2 PCB Layout ................................................................................. 19 Specifications..................................................................................... 3 Start-Up Behavior....................................................................... 20 Electrical Characteristics--5 V Primary Input Supply/5 V Secondary Isolated Supply........................................................... 3 EMI Considerations ................................................................... 20 Electrical Characteristics--3.3 V Primary Input Supply/3.3 V Secondary Isolated Supply........................................................... 5 DC Correctness and Magnetic Field Immunity........................... 20 Electrical Characteristics--5 V Primary Input Supply/3.3 V Secondary Isolated Supply........................................................... 7 Current Limit and Thermal Overload Protection ................. 22 Package Characteristics ............................................................... 9 Regulatory Information ............................................................... 9 Propagation Delay Parameters ................................................. 20 Power Consumption .................................................................. 21 Power Considerations ................................................................ 22 Thermal Analysis ....................................................................... 23 Insulation and Safety-Related Specifications ............................ 9 Increasing Available Power ....................................................... 23 IEC 60747-5-2 (VDE 0884, Part 2):2003-01 Insulation Characteristics ............................................................................ 10 Outline Dimensions ....................................................................... 25 Recommended Operating Conditions .................................... 10 Ordering Guide .......................................................................... 25 Absolute Maximum Ratings .......................................................... 11 Automotive Products ................................................................. 25 Insulation Lifetime ..................................................................... 24 ESD Caution ................................................................................ 11 Pin Configurations and Function Descriptions ......................... 12 REVISION HISTORY 10/12--Revision 0: Initial Version Rev. 0 | Page 2 of 28 Automotive Products ADuM5200W/ADuM5201W/ADuM5202W SPECIFICATIONS ELECTRICAL CHARACTERISTICS--5 V PRIMARY INPUT SUPPLY/5 V SECONDARY ISOLATED SUPPLY All typical specifications are at TA = 25C, VDD1 = VSEL = VISO = 5 V. Minimum/maximum specifications apply over the entire recommended operation range which is 4.5 V VDD1, VSEL, VISO 5.5 V; and -40C TA +105C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted. Table 2. DC-to-DC Converter Static Specifications Parameter DC-TO-DC CONVERTER SUPPLY Setpoint Line Regulation Load Regulation Output Ripple Output Noise Switching Frequency PW Modulation Frequency Output Supply Efficiency at IISO (MAX) IDD1, No VISO Load IDD1, Full VISO Load Symbol Min Typ Max Unit Test Conditions/Comments VISO VISO (LINE) VISO (LOAD) VISO (RIP) VISO (NOISE) fOSC fPWM IISO (MAX) 4.7 5.0 1 1 75 200 180 625 5.4 V mV/V % mV p-p mV p-p MHz kHz mA % mA mA IISO = 0 mA IISO = 40 mA, VDD1 = 4.5 V to 5.5 V IISO = 8 mA to 72 mA 20 MHz bandwidth, CBO = 0.1 F||10 F, IISO = 72 mA CBO = 0.1 F||10 F, IISO = 72 mA 5 80 34 10 290 IDD1 (Q) IDD1 (MAX) 25 VISO > 4.5 V IISO = 80 mA Table 3. DC-to-DC Converter Dynamic Specifications Parameter SUPPLY CURRENT Input ADuM5200W ADuM5201W ADuM5202W Available to Load ADuM5200W ADuM5201W ADuM5202W Symbol 25 Mbps--C Grade Typ Max Min Unit Test Conditions/Comments No VISO load No VISO load No VISO load IDD1 IDD1 IDD1 34 38 41 mA mA mA IISO (LOAD) IISO (LOAD) IISO (LOAD) 74 72 70 mA mA mA Table 4. Switching Specifications Parameter SWITCHING SPECIFICATIONS Data Rate Propagation Delay Pulse Width Distortion Change vs. Temperature Pulse Width Propagation Delay Skew Channel Matching Codirectional 1 Opposing Directional 2 Symbol Min tPHL, tPLH PWD C Grade Typ Max 45 Unit Test Conditions/Comments Within PWD limit 50% input to 50% output |tPLH - tPHL| 15 Mbps ns ns ps/C ns ns 6 15 ns ns 25 60 6 5 PW tPSK 40 tPSKCD tPSKOD 1 Within PWD limit Between any two units Codirectional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. 2 Opposing directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. 7 Rev. 0 | Page 3 of 28 ADuM5200W/ADuM5201W/ADuM5202W Automotive Products Table 5. Input and Output Characteristics Parameter DC SPECIFICATIONS Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Symbol Min VIH VIL VOH 0.7 VISO or 0.7 VDD1 Logic Low Output Voltages VOL Undervoltage Lockout Positive Going Threshold Negative Going Threshold Hysteresis Input Currents per Channel AC SPECIFICATIONS Output Rise/Fall Time Common-Mode Transient Immunity 1 Refresh Rate 1 Typ Max 0.1 0.4 V V V V V V +20 V V V A 0.3 VISO or 0.3 VDD1 VDD1 - 0.3 or VISO - 0.3 VDD1 - 0.5 or VISO - 0.5 5.0 4.8 0.0 0.2 Unit VUV+ VUV- VUVH II -20 2.7 2.4 0.3 +0.01 tR/tF |CM| 25 2.5 35 ns kV/s 1.0 Mbps fr Test Conditions/Comments IOx = -20 A, VIx = VIxH IOx = -4 mA, VIx = VIxH IOx = 20 A, VIx = VIxL IOx = 4 mA, VIx = VIxL VDD1, VDDL, VISO supplies 0 V VIx VDDx 10% to 90% VIx= VDD1 or VISO, VCM = 1000 V, transient magnitude = 800 V |CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.7 x VDD1 or 0.7 x VISO for a high output or VO < 0.3 x VDD1 or 0.3 x VISO for a low output. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. Rev. 0 | Page 4 of 28 Automotive Products ADuM5200W/ADuM5201W/ADuM5202W ELECTRICAL CHARACTERISTICS--3.3 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY All typical specifications are at TA = 25C, VDD1 = VISO = 3.3 V, VSEL = GNDISO. Minimum/maximum specifications apply over the entire recommended operation range which is 3.0 V VDD1, VSEL, VISO 3.6 V; and -40C TA +105C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted. Table 6. DC-to-DC Converter Static Specifications Parameter DC-TO-DC CONVERTER SUPPLY Setpoint Line Regulation Load Regulation Output Ripple Output Noise Switching Frequency PW Modulation Frequency Output Supply Efficiency at IISO (MAX) IDD1, No VISO Load IDD1, Full VISO Load Symbol Min Typ Max Unit Test Conditions/Comments VISO VISO (LINE) VISO (LOAD) VISO (RIP) VISO (NOISE) fOSC fPWM IISO (MAX) 3.0 3.3 1 1 50 130 180 625 3.6 V mV/V % mV p-p mV p-p MHz kHz mA % mA mA IISO = 0 mA IISO = 18 mA, VDD1 = 3.0 V to 3.6 V IISO = 3 mA to 33 mA 20 MHz bandwidth, CBO = 0.1 F||10 F, IISO = 33 mA CBO = 0.1 F||10 F, IISO = 33 mA 5 37 34 6 175 IDD1 (Q) IDD1 (MAX) 18 VISO > 3 V IISO = 37 mA Table 7. DC-to-DC Converter Dynamic Specifications Parameter SUPPLY CURRENT Input ADuM5200W ADuM5201W ADuM5202W Available to Load ADuM5200W ADuM5201W ADuM5202W Symbol 25 Mbps--C Grade Typ Max Min Unit Test Conditions/Comments No VISO load No VISO load No VISO load IDD1 IDD1 IDD1 23 25 27 mA mA mA IISO (LOAD) IISO (LOAD) IISO (LOAD) 23 22 21 mA mA mA Table 8. Switching Specifications Parameter SWITCHING SPECIFICATIONS Data Rate Propagation Delay Pulse Width Distortion Change vs. Temperature Pulse Width Propagation Delay Skew Channel Matching Codirectional 1 Opposing Directional 2 Symbol Min tPHL, tPLH PWD C Grade Typ Max 45 Unit Test Conditions/Comments Within PWD limit 50% input to 50% output |tPLH - tPHL| 45 Mbps ns ns ps/C ns ns 6 15 ns ns 25 70 6 5 PW tPSK 40 tPSKCD tPSKOD 1 Within PWD limit Between any two units Codirectional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. 2 Opposing directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. 7 Rev. 0 | Page 5 of 28 ADuM5200W/ADuM5201W/ADuM5202W Automotive Products Table 9. Input and Output Characteristics Parameter DC SPECIFICATIONS Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Logic Low Output Voltages Undervoltage Lockout Positive Going Threshold Negative Going Threshold Hysteresis Input Currents per Channel AC SPECIFICATIONS Output Rise/Fall Time Common-Mode Transient Immunity 1 Refresh Rate 1 Symbol Min VIH VIL VOH 0.7 VISO or 0.7 VDD1 Typ Max 0.1 0.4 V V V V V V +20 V V V A 0.3 VISO or 0.3 VDD1 VDD1 - 0.3 or VISO - 0.3 VDD1 - 0.5 or VISO - 0.5 VOL 3.3 3.1 0.0 0.0 Unit VUV+ VUV- VUVH II -20 2.7 2.4 0.3 +0.01 tR/tF |CM| 25 2.5 35 ns kV/s 1.0 Mbps fr Test Conditions/Comments IOx = -20 A, VIx = VIxH IOx = -4 mA, VIx = VIxH IOx = 20 A, VIx = VIxL IOx = 4 mA, VIx = VIxL VDD1, VDDL, VISO supplies 0 V VIx VDDx 10% to 90% VIx = VDD1 or VISO, VCM = 1000 V, transient magnitude = 800 V |CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.7 x VDD1 or 0.7 x VISO for a high output or VO < 0.3 x VDD1 or 0.3 x VISO for a low output. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. Rev. 0 | Page 6 of 28 Automotive Products ADuM5200W/ADuM5201W/ADuM5202W ELECTRICAL CHARACTERISTICS--5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY All typical specifications are at TA = 25C, VDD1 = 5.0 V, VISO = 3.3 V, VSEL = GNDISO. Minimum/maximum specifications apply over the entire recommended operation range which is 4.5 V VDD1 5.5 V, 3.0 V VISO 3.6 V; and -40C TA +105C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted. Table 10. DC-to-DC Converter Static Specifications Parameter DC-TO-DC CONVERTER SUPPLY Setpoint Line Regulation Load Regulation Output Ripple Output Noise Switching Frequency PW Modulation Frequency Output Supply Efficiency at IISO (MAX) IDD1, No VISO Load IDD1, Full VISO Load Symbol Min Typ Max Unit Test Conditions/Comments VISO VISO (LINE) VISO (LOAD) VISO (RIP) VISO (NOISE) fOSC fPWM IISO (MAX) 3.0 3.3 1 1 50 130 180 625 3.6 V mV/V % mV p-p mV p-p MHz kHz mA % mA mA IISO = 0 mA IISO = 50 mA, VDD1 = 3.0 V to 3.6 V IISO = 10 mA to 90 mA 20 MHz bandwidth, CBO = 0.1 F||10 F, IISO = 90 mA CBO = 0.1 F||10 F, IISO = 90 mA 5 100 30 5 230 IDD1 (Q) IDD1 (MAX) 15 VISO > 3 V IISO = 90 mA Table 11. DC-to-DC Converter Dynamic Specifications Parameter SUPPLY CURRENT Input ADuM5200W ADuM5201W ADuM5202W Available to Load ADuM5200W ADuM5201W ADuM5202W Symbol 25 Mbps--C Grade Typ Max Min Unit Test Conditions/Comments No VISO load No VISO load No VISO load IDD1 IDD1 IDD1 22 23 24 mA mA mA IISO (LOAD) IISO (LOAD) IISO (LOAD) 96 95 94 mA mA mA Table 12. Switching Specifications Parameter SWITCHING SPECIFICATIONS Data Rate Propagation Delay Pulse Width Distortion Change vs. Temperature Pulse Width Propagation Delay Skew Channel Matching Codirectional 1 Opposing Directional 2 Symbol Min tPHL, tPLH PWD C Grade Typ Max 45 Unit Test Conditions/Comments Within PWD limit 50% input to 50% output |tPLH - tPHL| 15 Mbps ns ns ps/C ns ns 6 15 ns ns 25 70 6 5 PW tPSK 40 tPSKCD tPSKOD 1 Within PWD limit Between any two units Codirectional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. 2 Opposing directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. 7 Rev. 0 | Page 7 of 28 ADuM5200W/ADuM5201W/ADuM5202W Automotive Products Table 13. Input and Output Characteristics Parameter DC SPECIFICATIONS Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Symbol Min VIH VIL VOH 0.7 VISO or 0.7 VDD1 Logic Low Output Voltages VOL Undervoltage Lockout Positive Going Threshold Negative Going Threshold Hysteresis Input Currents per Channel AC SPECIFICATIONS Output Rise/Fall Time Common-Mode Transient Immunity 1 Refresh Rate 1 Typ Max 0.3 VISO or 0.3 VDD1 VDD1 - 0.2, VISO - 0.2 VDD1 - 0.5 or VISO - 0.5 VDD1 or VISO VDD1 - 0.2 or VISO - 0.2 0.0 0.0 Unit Test Conditions/Comments V V V V IOx = -20 A, VIx = VIxH IOx = -4 mA, VIx = VIxH 0.1 0.4 V V +20 V V V A VUV+ VUV- VUVH II -20 2.7 2.4 0.3 +0.01 tR/tF |CM| 25 2.5 35 ns kV/s 1.0 Mbps fr IOx = 20 A, VIx = VIxL IOx = 4 mA, VIx = VIxL VDD1, VDDL, VISO supplies 0 V VIx VDDx 10% to 90% VIx = VDD1 or VISO, VCM = 1000 V, transient magnitude = 800 V |CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.7 x VDD1 or 0.7 x VISO for a high output or VO < 0.3 x VDD1 or 0.3 x VISO for a low output. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. Rev. 0 | Page 8 of 28 Automotive Products ADuM5200W/ADuM5201W/ADuM5202W PACKAGE CHARACTERISTICS Table 14. Thermal and Isolation Characteristics Parameter RESISTANCE AND CAPACITANCE Resistance (Input-to-Output) 1 Capacitance (Input-to-Output)1 Input Capacitance 2 IC Junction to Ambient Thermal Resistance Symbol Min Typ Max Unit RI-O CI-O CI JA 102 2.2 4.0 45 pF pF C/W THERMAL SHUTDOWN Threshold Hysteresis TSSD TSSD-HYS 150 20 C C Test Conditions/Comments f = 1 MHz Thermocouple located at the center of the package underside; test conducted on a 4-layer board with thin traces 3 TJ rising 1 This device is considered a 2-terminal device; Pin 1 through Pin 8 are shorted together, and Pin 9 through Pin 16 are shorted together. Input capacitance is from any input data pin to ground. 3 Refer to the Power Considerations section for thermal model definitions. 2 REGULATORY INFORMATION The ADuM5200W/ADuM5201W/ADuM5202W are approved by the organizations listed in Table 15. Refer to Table 20 and the Insulation Lifetime section for more information about the recommended maximum working voltages for specific cross-insulation waveforms and insulation levels. Table 15. UL 1 Recognized under 1577 component recognition program1. Single protection, 2500 V rms isolation voltage. File E214100. CSA Approved under CSA Component Acceptance Notice #5A. Testing was conducted per CSA 60950-1-07 and IEC 60950-1 2nd Ed. at 2.5 kV rated voltage. Basic insulation at 600 V rms (848 VPEAK) working voltage. Reinforced insulation at 250 V rms (353 VPEAK) working voltage. File 205078. VDE2 Certified according to IEC 60747-5-2 (VDE 0884, Part 2):2003-01 2. Basic insulation, 560 VPEAK. File 2471900-4880-0001. 1 In accordance with UL 1577, each ADuM5200W/ADuM5201W/ADuM5202W is proof tested by applying an insulation test voltage 3000 V rms for 1 second (current leakage detection limit = 10 A). 2 In accordance with to IEC 60747-5-2 (VDE 0884 Part 2):2003-01, each ADuM520x is proof tested by applying an insulation test voltage 1590 VPEAK for 1 second (partial discharge detection limit = 5 pC). The * marking branded on the component designates IEC 60747-5-2 (VDE 0884, Part 2):2003-01 approval. INSULATION AND SAFETY-RELATED SPECIFICATIONS Table 16. Critical Safety-Related Dimensions and Material Properties Parameter Rated Dielectric Insulation Voltage Minimum External Air Gap Symbol Value 2500 L(I01) 8.0 Unit Test Conditions/Comments V rms 1-minute duration mm Distance measured from input terminals to output terminals; shortest distance through air along the PCB mounting plane, as an aid to PC board layout 7.6 mm Measured from input terminals to output terminals, shortest distance path along body 0.017 min mm Distance through insulation >175 V DIN IEC 112/VDE 0303, Part 1 IIIa Material group (DIN VDE 0110, 1/89, Table 1) Minimum External Tracking (Creepage) L(I02) Minimum Internal Distance (Internal Clearance) Tracking Resistance (Comparative Tracking Index) Isolation Group CTI Rev. 0 | Page 9 of 28 ADuM5200W/ADuM5201W/ADuM5202W Automotive Products IEC 60747-5-2 (VDE 0884, PART 2):2003-01 INSULATION CHARACTERISTICS These isolators are suitable for reinforced electrical isolation only within the safety limit data. Maintenance of the safety data is ensured by the protective circuits. The asterisk (*) marking branded on the components designates IEC 60747-5-2 (VDE 0884, Part 2):2003-1 approval. Table 17. VDE Characteristics Description Installation Classification per DIN VDE 0110 For Rated Mains Voltage 150 V rms For Rated Mains Voltage 300 V rms For Rated Mains Voltage 400 V rms Climatic Classification Pollution Degree per DIN VDE 0110, Table 1 Maximum Working Insulation Voltage Input-to-Output Test Voltage, Method B1 Test Conditions/Comments VIORM x 1.875 = Vpd(m), 100% production test, tini = tm = 1 sec, partial discharge < 5 pC VIORM x 1.5 = Vpd(m), tini = 60 sec, tm = 10 sec, partial discharge < 5 pC Input-to-Output Test Voltage, Method A After Environmental Tests Subgroup 1 After Input and/or Safety Test Subgroup 2 and Subgroup 3 Highest Allowable Overvoltage Surge Isolation Voltage Safety-Limiting Values Characteristic Unit VIORM Vpd(m) I to IV I to III I to II 40/105/21 2 560 1050 V peak V peak Vpd(m) 896 672 V peak V peak VIOTM VIOSM 4000 4000 V peak V peak TS PS RS 150 2.78 >109 C W Vpd(m) VIORM x 1.2 = Vpd(m), tini = 60 sec, tm = 10 sec, partial discharge < 5 pC VPEAK = 10 kV, 1.2 s rise time, 50 s, 50% fall time Maximum value allowed in the event of a failure (see Figure 5) Maximum Junction Temperature Total Power Dissipation at 25C Insulation Resistance at TS Symbol VIO = 500 V 3.0 SAFE LIMITING POWER (W) 2.5 2.0 1.5 1.0 0 0 50 100 150 AMBIENT TEMPERATURE (C) 200 10436-105 0.5 Figure 5. Thermal Derating Curve, Dependence of Safety Limiting Values on Case Temperature, per DIN EN 60747-5-2 RECOMMENDED OPERATING CONDITIONS Table 18. Parameter Operating Temperature 1 Supply Voltages 2 VDD1 at VSEL = 0 V VDD1 at VSEL = VISO 1 2 Symbol TA Min -40 Max +105 Unit C VDD1 VDD1 3.0 4.5 5.5 5.5 V V Operation at 105C requires reduction of the maximum load current as specified in Table 19. Each voltage is relative to its respective ground. Rev. 0 | Page 10 of 28 Automotive Products ADuM5200W/ADuM5201W/ADuM5202W ABSOLUTE MAXIMUM RATINGS TA = 25C, unless otherwise noted. Table 19. Parameter Storage Temperature Range (TST) Ambient Operating Temperature Range (TA) Supply Voltages (VDD1, VISO) 1 Input Voltage (VIA, VIB, RCIN, RCSEL, VSEL)1, 2 Output Voltage (VOA, VOB)1, 2 Average Output Current per Pin 3 Common-Mode Transients 4 Rating -55C to +150C -40C to +105C -0.5 V to +7.0 V -0.5 V to VDDI + 0.5 V -0.5 V to VDDO + 0.5 V -10 mA to +10 mA -100 kV/s to +100 kV/s Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ESD CAUTION 1 Each voltage is relative to its respective ground. VDDI and VDDO refer to the supply voltages on the input and output sides of a given channel, respectively. See the PCB Layout section. 3 See Figure 5 for maximum rated current values for various temperatures. 4 Common-mode transients exceeding the absolute maximum slew rate may cause latch-up or permanent damage. 2 Table 20. Maximum Continuous Working Voltage Supporting 50-Year Minimum Lifetime 1 Parameter AC Voltage, Bipolar Waveform AC Voltage, Unipolar Waveform Basic Insulation Reinforced Insulation DC Voltage Basic Insulation Reinforced Insulation 1 Max 424 Unit VPEAK Applicable Certification All certifications, 50-year operation 600 353 VPEAK VPEAK Working voltage, 50-year operation Working voltage per IEC 60950-1 600 353 VPEAK VPEAK Working voltage, 50-year operation Working voltage per IEC 60950-1 Refers to the continuous voltage magnitude imposed across the isolation barrier. See the Insulation Lifetime section for more information. Rev. 0 | Page 11 of 28 ADuM5200W/ADuM5201W/ADuM5202W Automotive Products PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS 16 VISO VDD1 1 15 GNDISO GND1 2 VIA 3 ADuM5200W VIB 4 TOP VIEW (Not to Scale) 13 VOB 12 NC 11 VSEL RCSEL 6 NC 7 10 VE2 GND1 8 9 NC = NO CONNECT GNDISO 10436-006 RCIN 5 14 VOA Figure 6. ADuM5200W Pin Configuration Table 21. ADuM5200W Pin Function Descriptions Pin No. Mnemonic 1 VDD1 2, 8 GND1 3 4 5 VIA VIB RCIN 6 RCSEL 7, 12 9, 15 NC GNDISO 10 VE2 11 VSEL 13 14 16 VOB VOA VISO Description Primary Supply Voltage 3.0 V to 5.5 V. Ground 1. Ground reference for the isolator primary side. Pin 2 and Pin 8 are internally connected to each other, and it is recommended that both pins be connected to a common ground. Logic Input A. Logic Input B. Regulation Control Input. This pin must be connected to the RCOUT pin of a master isoPower device or tied low. Note that this pin must not be tied high if RCSEL is low; this combination causes excessive voltage on the secondary side, damaging the ADuM5200W and possibly the devices that it powers. Control Input. Determines self-regulation (RCSEL high) mode or slave mode (RCSEL low) allowing external regulation. This pin is weakly pulled to the high state. In noisy environments, tie it either high or low. No Internal Connection. Ground Reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected to each other, and it is recommended that both pins be connected to a common ground. Data Enable Input. When high or no connect, the secondary outputs are active; when low, the outputs are in a high-Z state. Output Voltage Selection. When VSEL = VISO, the VISO setpoint is 5.0 V. When VSEL = GNDISO, the VISO setpoint is 3.3 V. In slave regulation mode, this pin has no function. Logic Output B. Logic Output A. Secondary Supply Voltage. Output for secondary side isolated data channels and external loads. Rev. 0 | Page 12 of 28 Automotive Products ADuM5200W/ADuM5201W/ADuM5202W VDD1 1 16 VISO GND1 2 15 GNDISO VIA 3 ADuM5201W VOB 4 TOP VIEW (Not to Scale) RCSEL 6 13 VIB 12 NC 11 VSEL 10 VE2 VE1 7 GND1 8 9 NC = NO CONNECT GNDISO 10436-007 RCIN 5 14 VOA Figure 7. ADuM5201W Pin Configuration Table 22. ADuM5201W Pin Function Descriptions Pin No. Mnemonic Description 1 VDD1 Primary Supply Voltage 3.0 V to 5.5 V. 2, 8 GND1 Ground 1. Ground reference for isolator primary side. Pin 2 and Pin 8 are internally connected to each other, and it is recommended that both pins be connected to a common ground. 3 VIA Logic Input A. 4 VOB Logic Output B. 5 RCIN Regulation Control Input. This pin must be connected to the RCOUT pin of a master isoPower device or tied low. Note that this pin must not be tied high if RCSEL is low; this combination causes excessive voltage on the secondary side, damaging the ADuM5201W and possibly the devices that it powers. 6 RCSEL Control Input. Determines self-regulation mode (RCSEL high) or slave mode (RCSEL low) allowing external regulation. This pin is weakly pulled to the high state. In noisy environments, tie it either high or low. 7 VE1 Data Enable Input. When high or no connect, the primary output is active; when low, the outputs are in a high-Z state. 9, 15 GNDISO Ground Reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected to each other, and it is recommended that both pins be connected to a common ground. 10 VE2 Data Enable Input. When high or no connect, the secondary output is active; when low, the output is in a high-Z state. 11 VSEL Output Voltage Selection. When VSEL = VISO, the VISO setpoint is 5.0 V. When VSEL = GNDISO, the VISO setpoint is 3.3 V. In slave regulation mode, this pin has no function. 12 NC No Internal Connection. 13 VIB Logic Input B. 14 VOA Logic Output A. 16 VISO Secondary Supply Voltage. Output for secondary side isolated data channels and external loads. Rev. 0 | Page 13 of 28 ADuM5200W/ADuM5201W/ADuM5202W Automotive Products VDD1 1 16 VISO GND1 2 15 GNDISO VOA 3 ADuM5202W VOB 4 TOP VIEW (Not to Scale) RCSEL 6 13 VIB 12 NC 11 VSEL VE1 7 10 NC GND1 8 9 NC = NO CONNECT GNDISO 10436-008 RCIN 5 14 VIA Figure 8. ADuM5202W Pin Configuration Table 23. ADuM5202W Pin Function Descriptions Pin No. Mnemonic Description 1 VDD1 Primary Supply Voltage 3.0 V to 5.5 V. 2, 8 GND1 Ground 1. Ground reference for the isolator primary. Pin 2 and Pin 8 are internally connected to each other, and it is recommended that both pins be connected to a common ground. 3 VOA Logic Output A. 4 VOB Logic Output B. 5 RCIN Regulation Control Input. This pin must be connected to the RCOUT pin of a master isoPower device or tied low. Note that this pin must not be tied high if RCSEL is low; this combination causes excessive voltage on the secondary side, damaging the ADuM5202W and possibly the devices that it powers. 6 RCSEL Control Input. Determines self-regulation (RCSEL high) mode or slave mode (RCSEL low) allowing external regulation. This pin is weakly pulled to the high state. In noisy environments, tie it either high or low. 7 VE1 Data Enable Input. When high or no connect, the primary output is active; when low, the output is in a high-Z state. 9, 15 GNDISO Ground Reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected to each other, and it is recommended that both pins be connected to a common ground. 10, 12 NC No Internal Connection. 11 VSEL Output Voltage Selection. When VSEL = VISO, the VISO setpoint is 5.0 V. When VSEL = GNDISO, the VISO setpoint is 3.3 V. 13 VIB Logic Input B. 14 VIA Logic Input A. 16 VISO Secondary Supply Voltage. Output for secondary side isolated data channels and external loads. TRUTH TABLE Table 24. Power Section Truth Table (Positive Logic) 1 RCSEL Input H H H H L L L 1 2 RCIN Input X X X X H L RCOUT(EXT) VSEL Input H L L H X X X VDD1 Input (V) 2 5.0 5.0 3.3 3.3 X X X VISO (V) 5.0 3.3 3.3 5.0 X 0 X Operation Self regulation mode, normal operation. Self regulation mode, normal operation. Self regulation mode, normal operation. This supply configuration is not recommended due to extremely poor efficiency. Part runs at maximum open-loop voltage; therefore, damage can occur. Power supply is disabled. Slave mode, RCOUT(EXT) supplied by a master isoPower device. In this table, H refers to a high logic, L refers to a low logic, and X is don't care, or unknown. VDD1 must be common between all isoPower devices being regulated by a master isoPower part. Rev. 0 | Page 14 of 28 Automotive Products ADuM5200W/ADuM5201W/ADuM5202W TYPICAL PERFORMANCE CHARACTERISTICS 0.35 0.30 0.25 0.20 0.15 0.10 3.3V INPUT/3.3V OUTPUT 5V INPUT/3.3V OUTPUT 5V INPUT/5V OUTPUT 0.05 0 0 0.02 0.04 0.06 0.08 OUTPUT CURRENT (A) 0.10 0.12 Figure 9. Typical Power Supply Efficiency at 5 V/5 V, 5 V/3.3 V, and 3.3 V/3.3 V POWER DISSIPATION 2.5 2.0 1.5 1.0 IDD 0.5 0 3.0 3.5 4.0 4.5 VDD1 (V) 5.0 5.5 6.0 Figure 12. Typical Short-Circuit Input Current and Power vs. VDD1 Supply Voltage OUTPUT VOLTAGE (500mV/DIV) 1.0 0.9 0.8 0.7 0.6 90% LOAD 0.4 0.3 0.2 0 0 0.02 0.04 0.06 0.08 0.10 0.12 IISO (A) 10% LOAD (100s/DIV) 10436-023 VDD1 = 5V, VISO = 5V VDD1 = 5V, VISO = 3V VDD1 = 3.3V, VISO = 3.3V 0.1 10436-012 0.5 DYNAMIC LOAD POWER DISSIPATION (W) 3.0 10436-011 IDD1 (A) AND POWER DISSIPATION (W) 3.5 10436-022 EFFICIENCY (POWER IN/POWER OUT) 0.40 Figure 13. Typical VISO Transient Load Response, 5 V Output, 10% to 90% Load Step Figure 10. Typical Total Power Dissipation vs. Isolated Output Supply Current in All Supported Power Configurations OUTPUT VOLTAGE (500mV/DIV) 0.12 0.08 0.04 0.02 0 3.3V INPUT/3.3V OUTPUT 5V INPUT/3.3V OUTPUT 5V INPUT/5V OUTPUT 0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 INPUT CURRENT (A) 90% LOAD 10% LOAD (100s/DIV) Figure 14. Typical Transient Load Response, 3 V Output, 10% to 90% Load Step Figure 11. Typical Isolated Output Supply Current vs. Input Current in All Supported Power Configurations Rev. 0 | Page 15 of 28 10436-013 DYNAMIC LOAD 0.06 10436-024 OUTPUT CURRENT (A) 0.10 ADuM5200W/ADuM5201W/ADuM5202W Automotive Products 5 25 BW = 20MHz 5V OUTPUT RIPPLE (mV) 20 4 10% LOAD VISO (V) 15 10 3 90% LOAD 2 5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 -1.0 10436-014 -5 4.0 TIME (s) Figure 15. Typical VISO = 5 V Output Voltage Ripple at 90% Load -0.5 0 0.5 1.0 1.5 TIME (ms) 2.0 2.5 3.0 10436-028 1 0 Figure 18. Typical VISO = 3.3 V, Output Voltage Startup Transient at 10% and 90% Load 16 20 5V INPUT/5V OUTPUT 3.3V INPUT/3.3V OUTPUT 5V INPUT/3.3V OUTPUT BW = 20MHz 14 3.3V OUTPUT RIPPLE (mV) 16 SUPPLY CURRENT (mA) 12 10 8 6 4 12 8 4 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 10436-015 0 4.0 TIME (s) Figure 16. Typical VISO = 3.3 V Output Voltage Ripple at 90% Load 0 5 10 15 DATA RATE (Mbps) 20 25 10436-025 2 Figure 19. Typical ICHn Supply Current per Forward Data Channel (15 pF Output Load) 7 20 10% LOAD 5V INPUT/5V OUTPUT 3.3V INPUT/3.3V OUTPUT 5V INPUT/3.3V OUTPUT 6 SUPPLY CURRENT (mA) 16 VISO (V) 5 4 90% LOAD 3 2 12 8 4 -1 0 1 TIME (ms) 2 3 0 Figure 17. Typical VISO = 5 V, Output Voltage Startup Transient at 10% and 90% Load Rev. 0 | Page 16 of 28 0 5 10 15 DATA RATE (Mbps) 20 25 Figure 20. Typical ICHn Supply Current per Reverse Data Channel (15 pF Output Load) 10436-026 0 10436-027 1 Automotive Products ADuM5200W/ADuM5201W/ADuM5202W 5 3.0 5V 4 2.5 5V 3.3V CURRENT (mA) 3 2 1 1.5 1.0 0 0 5 10 15 DATA RATE (Mbps) 20 25 0 0 5 15 10 DATA RATE (Mbps) 20 25 Figure 22. Typical IISO (D) Dynamic Supply Current per Output (15 pF Output Load) Figure 21. Typical IISO (D) Dynamic Supply Current per Input Rev. 0 | Page 17 of 28 10436-019 0.5 10436-018 CURRENT (mA) 3.3V 2.0 ADuM5200W/ADuM5201W/ADuM5202W Automotive Products TERMINOLOGY IDD1 (Q) IDD1(Q) is the minimum operating current drawn at the VDD1 pin when there is no external load at VISO and the I/O pins are operating below 2 Mbps, requiring no additional dynamic supply current. IDD1(Q) reflects the minimum current operating condition. IDD1 (D) IDD1 (D) is the typical input supply current with all channels simultaneously driven at a maximum data rate of 25 Mbps with full capacitive load representing the maximum dynamic load conditions. Resistive loads on the outputs should be treated separately from the dynamic load. IDD1 (MAX) IDD1 (MAX) is the input current under full dynamic and VISO load conditions. ISO (LOAD) ISO (LOAD) is the current available to the load. tPHL Propagation Delay tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH Propagation Delay tPLH propagation delay is measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal. Propagation Delay Skew, tPSK tPSK is the magnitude of the worst-case difference in tPHL and/or tPLH that is measured between units at the same operating temperature, supply voltages, and output load within the recommended operating conditions. Channel-to-Channel Matching, tPSKCD/tPSKOD Channel-to-channel matching is the absolute value of the difference in propagation delays between the two channels when operated with identical loads. Minimum Pulse Width The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed. Maximum Data Rate The maximum data rate is the fastest data rate at which the specified pulse width distortion is guaranteed. Rev. 0 | Page 18 of 28 Automotive Products ADuM5200W/ADuM5201W/ADuM5202W APPLICATIONS INFORMATION The ADuM5200W/ADuM5201W/ADuM5202W implements undervoltage lockout (UVLO) with hysteresis on the VDD1 power input. This feature ensures that the converter does not enter oscillation due to noisy input power or slow power on ramp rates. The ADuM5200W/ADuM5201W/ADuM5202W can accept an external regulation control signal (RCIN) that can be connected to other isoPower devices. This allows a single regulator to control multiple power modules without contention. When accepting control from a master power module, the VISO pins can be connected together adding their power. Because there is only one feedback control path, the supplies work together seamlessly. The ADuM5200W/ADuM5201W/ADuM5202W can only regulate themselves or accept regulation (slave device) from another device in this product line; they cannot provide a regulation signal to other devices. PCB LAYOUT The ADuM5200W/ADuM5201W/ADuM5202W digital isolators with 0.5 W isoPower, integrated dc-to-dc converter require no external interface circuitry for the logic interfaces. Power supply bypassing is required at the input and output supply pins (see Figure 23). Note that low ESR bypass capacitors are required between Pin 1 and Pin 2 and between Pin 15 and Pin 16, as close to the chip pads as possible. The power supply section of the ADuM5200W/ADuM5201W/ ADuM5202W uses a 180 MHz oscillator frequency to pass power efficiently through its chip-scale transformers. In addition, the normal operation of the data section of the iCoupler introduces switching transients on the power supply pins. Bypass capacitors are required for several operating frequencies. Noise suppression requires a low inductance, high frequency capacitor, whereas ripple suppression and proper regulation require a large value capacitor. These capacitors are most conveniently connected between Pin 1 and Pin 2 for VDD1 and between Pin 15 and Pin 16 for VISO. To suppress noise and reduce ripple, a parallel combination of at least two capacitors is required. The recommended capacitor values are 0.1 F and 10 F for VDD1. The smaller capacitor must have a low ESR; for example, use of a ceramic capacitor is advised. Note that the total lead length between the ends of the low ESR capacitor and the input power supply pin must not exceed 2 mm. Installing the bypass capacitor with traces more than 2 mm in length may result in data corruption. Consider bypassing between Pin 1 and Pin 8 and between Pin 9 and Pin 16 unless both common ground pins are connected together close to the package. BYPASS < 2mm VISO VDD1 GND1 GNDISO VIA/VOA VOA/VIA VIB/VOB VOB/VIB RCIN NC VSEL RCSEL VE2 VE1 GNDISO GND1 10436-020 The dc-to-dc converter section of the ADuM5200W/ ADuM5201W/ADuM5202W works on principles that are common to most switching power supplies. It has a secondary side controller architecture with isolated pulse-width modulation (PWM) feedback. VDD1 power is supplied to an oscillating circuit that switches current into a chip-scale air core transformer. Power transferred to the secondary side is rectified and regulated to either 3.3 V or 5 V. The secondary (VISO) side controller regulates the output by creating a PWM control signal that is sent to the primary (VDD1) side by a dedicated iCoupler data channel. The PWM modulates the oscillator circuit to control the power being sent to the secondary side. Feedback allows for significantly higher power and efficiency. Figure 23. Recommended PCB Layout In applications involving high common-mode transients, ensure that board coupling across the isolation barrier is minimized. Furthermore, design the board layout such that any coupling that does occur affects all pins equally on a given component side. Failure to ensure this can cause voltage differentials between pins exceeding the absolute maximum ratings for the device (specified in Table 19.) thereby leading to latch-up and/or permanent damage. The ADuM5200W/ADuM5201W/ADuM5202W is a power device that dissipates approximately 1 W of power when fully loaded and running at maximum speed. Because it is not possible to apply a heat sink to an isolation device, the device primarily depends on heat dissipation into the PCB through the GND pins. If the device is used at high ambient temperatures, provide a thermal path from the GND pins to the PCB ground plane. The board layout in Figure 23 shows enlarged pads for Pin 2, Pin 8, Pin 9, and Pin 15. Multiple vias should be implemented from the pad to the ground plane to significantly reduce the temperature inside the chip. The dimensions of the expanded pads are at the discretion of the designer and depend on the available board space. Rev. 0 | Page 19 of 28 ADuM5200W/ADuM5201W/ADuM5202W Automotive Products START-UP BEHAVIOR PROPAGATION DELAY PARAMETERS The ADuM5200W/ADuM5201W/ADuM5202W do not contain a soft start circuit. Take the startup current and voltage behavior into account when designing with this device. Propagation delay is a parameter that describes the time it takes a logic signal to propagate through a component. The propagation delay to a logic low output may differ from the propagation delay to a logic high. Fast slew-rates, in the 200 s or smaller range, allow peak current draws up to 100 mA/V of VDD1. The input voltage goes high faster than the output can turn on so the peak current is proportional to the maximum input voltage. With a slow VDD1 slew rate (in the millisecond range), the input voltage is not changing quickly when VDD1 reaches the UVLO minimum voltage. The current surge is approximately 300 mA because VDD1 is nearly constant at the 2.7 V UVLO voltage. The behavior during startup is similar to when the device load is a short circuit; these values are consistent with the short-circuit current shown in Figure 12. When starting the device for VISO = 5 V operation, do not limit the current available to the VDD1 power pin to less than 300 mA. The ADuM5200W/ADuM5201W/ADuM5202W devices may not be able to drive the output to the regulation point if a currentlimiting device clamps the VDD1 voltage during startup. As a result, the ADuM5200W/ADuM5201W/ADuM5202W devices can draw large amounts of current at low voltage for extended periods of time. The output voltage of the ADuM5200W/ADuM5201W/ ADuM5202W exhibits VISO overshoot during startup. If this could potentially damage components attached to VISO, then a voltage-limiting device, such as a Zener diode, can be used to clamp the voltage. Typical behavior is shown in Figure 17 and Figure 18. EMI CONSIDERATIONS The dc-to-dc converter section of the ADuM5200W/ ADuM5201W/ADuM5202W devices must operate at 180 MHz to allow efficient power transfer through the small transformers. This creates high frequency currents that can propagate in circuit board ground and power planes, causing edge emissions and dipole radiation between the primary and secondary ground planes. Grounded enclosures are recommended for applications that use these devices. If grounded enclosures are not possible, follow good RF design practices in the layout of the PCB. See the AN-0971 Application Note for board layout recommendations. INPUT (VIX) 50% tPLH tPHL OUTPUT (VOX) 50% 10436-118 When power is applied to VDD1, the input switching circuit begins to operate and draw current when the UVLO minimum voltage is reached. The switching circuit drives the maximum available power to the output until it reaches the regulation voltage where PWM control begins. The amount of current and time this takes depends on the load and the VDD1 slew rate. Figure 24. Propagation Delay Parameters Pulse width distortion is the maximum difference between these two propagation delay values and is an indication of how accurately timing of the input signal is preserved. Channel-to-channel matching refers to the maximum amount the propagation delay differs between channels within a single ADuM5200W/ADuM5201W/ADuM5202W component. Propagation delay skew refers to the maximum amount the propagation delay differs between multiple ADuM5200W/ ADuM5201W/ADuM5202W components operating under the same conditions. DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY Positive and negative logic transitions at the isolator input cause narrow (~1 ns) pulses to be sent to the decoder via the transformer. The decoder is bistable and is, therefore, either set or reset by the pulses, indicating input logic transitions. In the absence of logic transitions at the input for more than 1 s, a periodic set of refresh pulses indicative of the correct input state are sent to ensure dc correctness at the output. If the decoder receives no internal pulses of more than about 5 s, the input side is assumed to be unpowered or nonfunctional, in which case the isolator output is forced to a default state (see Table 24) by the watchdog timer circuit. The limitation on the magnetic field immunity of the ADuM5200W/ADuM5201W/ADuM5202W is set by the condition in which induced voltage in the receiving coil of the transformer is sufficiently large to either falsely set or reset the decoder. The following analysis defines the conditions under which this may occur. The 3 V operating condition of the ADuM5200W/ ADuM5201W/ADuM5202W is examined because it represents the most susceptible mode of operation. The pulses at the transformer output have an amplitude greater than 1.0 V. The decoder has a sensing threshold at about 0.5 V, thus establishing a 0.5 V margin in which induced voltages can be tolerated. The voltage induced across the receiving coil is given by V = (-d/dt)rn2; n = 1, 2, ... , N where: is the magnetic flux density (gauss). N is the number of turns in the receiving coil. rn is the radius of the nth turn in the receiving coil (cm). Rev. 0 | Page 20 of 28 Automotive Products ADuM5200W/ADuM5201W/ADuM5202W Given the geometry of the receiving coil in the ADuM5200W/ ADuM5201W/ADuM5202W and an imposed requirement that the induced voltage be, at most, 50% of the 0.5 V margin at the decoder, a maximum allowable magnetic field is calculated as shown in Figure 25. POWER CONSUMPTION 100 MAXIMUM ALLOWABLE MAGNETIC FLUX DENSITY (kgauss) Note that at combinations of strong magnetic field and high frequency, any loops formed by PCB traces can induce error voltages sufficiently large enough to trigger the thresholds of succeeding circuitry. Exercise care in the layout of such traces to avoid this possibility. The VDD1 power supply input provides power to the iCoupler data channels as well as to the power converter. For this reason, the quiescent currents drawn by the data converter and the primary and secondary input/output channels cannot be determined separately. All of these quiescent power demands have been combined into the IDD1(Q) current shown in Figure 27. The total IDD1 supply current is the sum of the quiescent operating current, dynamic current IDD1(D) demanded by the I/O channels, and any external IISO load. 10 1 0.1 0.01 E 100M IDD1(Q) IDD1(D) Figure 25. Maximum Allowable External Magnetic Flux Density IDDP(D) For example, at a magnetic field frequency of 1 MHz, the maximum allowable magnetic field of 0.2 kgauss induces a voltage of 0.25 V at the receiving coil. This is about 50% of the sensing threshold and does not cause a faulty output transition. Similarly, if such an event occurs during a transmitted pulse (and is of the worst-case polarity), it reduces the received pulse from >1.0 V to 0.75 V--still well above the 0.5 V sensing threshold of the decoder. The preceding magnetic flux density values correspond to specific current magnitudes at given distances from the ADuM5200W/ ADuM5201W/ADuM5202W transformers. Figure 26 expresses these allowable current magnitudes as a function of frequency for selected distances. As shown, the ADuM5200W/ADuM5201W/ ADuM5202W are extremely immune and can be affected only by extremely large currents operated at high frequency very close to the component. For the 1 MHz example noted, a 0.5 kA current placed 5 mm away from the ADuM5200W/ADuM5201W/ ADuM5202W is required to affect the operation of the component. DISTANCE = 1m 100 10 PRIMARY DATA I/O 2-CHANNEL DISTANCE = 5mm 100k 1M 10M 100M (1) where : IDD1 is the total supply input current. ICHn is the current drawn by a single channel determined from Figure 19 or Figure 20, depending on channel direction. IISO is the current drawn by the secondary side external loads. E is the power supply efficiency at 100 mA load from Figure 9 at the VISO and VDD1 condition of interest. 0.1 MAGNETIC FIELD FREQUENCY (Hz) SECONDARY DATA I/O 2-CHANNEL IDD1 = (IISO x VISO)/(E x VDD1) + ICHn; n = 1 to 4 1 10k IISO(D) Both dynamic input and output current is consumed only when operating at channel speeds higher than the rate of fr. Because each channel has a dynamic current determined by its data rate, Figure 19 shows the current for a channel in the forward direction, which means that the input is on the primary side of the part. Figure 20 shows the current for a channel in the reverse direction, which means that the input is on the secondary side of the part. Both figures assume a typical 15 pF load. The following relationship allows the total IDD1 current to be calculated: DISTANCE = 100mm 1k CONVERTER SECONDARY Figure 27. Power Consumption Within the ADuM5200W/ ADuM5201W/ADuM5202W 10436-120 MAXIMUM ALLOWABLE CURRENT (kA) 1000 0.01 IISO CONVERTER PRIMARY 10436-021 10k 100k 1M 10M MAGNETIC FIELD FREQUENCY (Hz) 10436-119 0.001 1k Figure 26. Maximum Allowable Current for Various Current-toADuM5200W/ADuM5201W/ADuM5202W Spacings Rev. 0 | Page 21 of 28 ADuM5200W/ADuM5201W/ADuM5202W Calculate the maximum external load by subtracting the dynamic output load from the maximum allowable load. IISO (LOAD) = IISO (MAX) - IISO(D)n; n = 1 to 4 (2) where: IISO (LOAD) is the current available to supply an external secondary side load. IISO (MAX) is the maximum external secondary side load current available at VISO. IISO(D)n is the dynamic load current drawn from VISO by an input or output channel, as shown in Figure 19 and Figure 20. Data is presented assuming a typical 15 pF load The preceding analysis assumes a 15 pF capacitive load on each data output. If the capacitive load is larger than 15 pF, the additional current must be included in the analysis of IDD1 and IISO (LOAD). To determine IDD1 in Equation 1, additional primary side dynamic output current (IAOD) is added directly to IDD1. Additional secondary side dynamic output current (IAOD) is added to IISO on a per channel basis. To determine IISO (LOAD) in Equation 2, additional secondary side output current (IAOD) is subtracted from IISO (MAX) on a per channel basis. For each output channel with CL greater than 15 pF, the additional capacitive supply current is given by IAOD = 0.5 x 10-3 x (CL - 15) x VISO) x (2f - fr) f > 0.5 fr (3) where: CL is the output load capacitance (pF). VISO is the output supply voltage (V). f is the input logic signal frequency (MHz); it is half of the input data rate expressed in units of Mbps. fr is the input channel refresh rate (Mbps). CURRENT LIMIT AND THERMAL OVERLOAD PROTECTION The ADuM5200W/ADuM5201W/ADuM5202W are protected against damage due to excessive power dissipation by thermal overload protection circuits. Thermal overload protection limits the junction temperature to a maximum of 150C (typical). Under extreme conditions (that is, high ambient temperature and power dissipation), when the junction temperature starts to rise above 150C, the PWM is turned off, reducing the output current to zero. When the junction temperature drops below 130C (typical), the PWM turns on again, restoring the output current to its nominal value. Consider the case where a hard short from VISO to ground occurs. At first, the ADuM5200W/ADuM5201W/ADuM5202W reach their maximum current, which is proportional to the voltage applied at VDD1. Power dissipates on the primary side of the converter (see Figure 12). If self-heating of the junction becomes great enough to cause its temperature to rise above 150C, thermal shutdown activates, turning off the PWM, and reducing the output current to zero. As the junction temperature cools and drops below 130C, the PWM turns on, and power dissipates Automotive Products again on the primary side of the converter, causing the junction temperature to rise to 150C again. This thermal oscillation between 130C and 150C causes the part to cycle on and off as long as the short remains at the output. Thermal limit protections are intended to protect the device against accidental overload conditions. For reliable operation, externally limit device power dissipation to prevent junction temperatures from exceeding 130C. POWER CONSIDERATIONS The ADuM5200W/ADuM5201W/ADuM5202W power input, data input channels on the primary side and data input channels on the secondary side are all protected from premature operation by UVLO circuitry. Below the minimum operating voltage, the power converter holds its oscillator inactive and all input channel drivers and refresh circuits are idle. Outputs remain in a high impedance state to prevent transmission of undefined states during power-up and power-down operations. During application of power to VDD1, the primary side circuitry is held idle until the UVLO preset voltage is reached. At that time, the data channels initialize to their default low output state until they receive data pulses from the secondary side. When the primary side is above the UVLO threshold, the data input channels sample their inputs and begin sending encoded pulses to the inactive secondary output channels. The outputs on the primary side remain in their default low state because no data comes from the secondary side inputs until secondary power is established. The primary side oscillator also begins to operate, transferring power to the secondary power circuits. The secondary VISO voltage is below its UVLO limit at this point; the regulation control signal from the secondary is not being generated. The primary side power oscillator is allowed to free run in this circumstance, supplying the maximum amount of power to the secondary, until the secondary voltage rises to its regulation setpoint. This creates a large inrush current transient at VDD1. When the regulation point is reached, the regulation control circuit produces the regulation control signal that modulates the oscillator on the primary side. The VDD1 current is reduced and is then proportional to the load current. The inrush current is less than the short-circuit current shown in Figure 12. The duration of the inrush depends on the VISO loading conditions and the current available at the VDD1 pin. As the secondary side converter begins to accept power from the primary, the VISO voltage starts to rise. When the secondary side UVLO is reached, the secondary side outputs are initialized to their default low state until data is received from the corresponding primary side input. It can take up to 1 s after the secondary side is initialized for the state of the output to correlate with the primary side input. Secondary side inputs sample their state and transmit it to the primary side. Outputs are valid about 1 s after the secondary side becomes active. Rev. 0 | Page 22 of 28 Automotive Products ADuM5200W/ADuM5201W/ADuM5202W Because the rate of charge of the secondary side power supply is dependent on loading conditions and the input voltage level and the output voltage level selected, take care with the design to allow the converter sufficient time to stabilize before valid data is required. When power is removed from VDD1, the primary side converter and coupler shut down when the UVLO level is reached. The secondary side stops receiving power and starts to discharge. The outputs on the secondary side hold the last state that they received from the primary side. Either the UVLO level is reached and the outputs are placed in their high impedance state, or the outputs detect a lack of activity from the primary side inputs and the outputs are set to their default low value before the secondary power reaches UVLO. THERMAL ANALYSIS The ADuM5200W/ADuM5201W/ADuM5202W consist of four internal die, attached to a split lead frame with two die attach paddles. For the purposes of thermal analysis, it is treated as a thermal unit with the highest junction temperature reflected in the JA from Table 14. The value of JA is based on measurements taken with the part mounted on a JEDEC standard 4-layer board with fine width traces and still air. Under normal operating conditions, the ADuM5200W/ADuM5201W/ADuM5202W operate at full load across the full temperature range without derating the output current. However, following the recommendations in the PCB Layout section decreases the thermal resistance to the PCB allowing increased thermal margin at high ambient temperatures. INCREASING AVAILABLE POWER The ADuM5200W/ADuM5201W/ADuM5202W are designed with the capability of running in combination with other compatible isoPower devices. The RCIN and RCSEL pins allow the ADuM5200W/ADuM5201W/ADuM5202W to receive a PWM signal from another device through the RCIN pin and act as a slave to that control signal. The RCSEL pin chooses whether the part acts as a stand-alone self-regulated device or a slave device. When the ADuM5200W/ADuM5201W/ADuM5202W act as a slave, their power is regulated by a PWM signal coming from a master device. This allows multiple isoPower parts to be combined in parallel while sharing the load equally. When the ADuM5200W/ ADuM5201W/ADuM5202W are configured as standalone units, they generate their own PWM feedback signal to regulate themselves. The ADuM5000 can act as a master or a slave device, the ADuM5401, ADuM5402, ADuM5403, and ADuM5404 can only be master/ standalone, and the ADuM520x can only be a slave/standalone device. This means that the ADuM5000, ADuM520x, and ADuM5401 to ADuM5404 can only be used in certain master/ slave combinations as listed in Table 25. Table 25. Allowed Combinations of isoPower Parts Slave Master ADuM5000 ADuM5000W Yes ADuM520xW Yes ADuM5401W to ADuM5404W No ADuM520xW No No No ADuM5401W to ADuM5404W Yes Yes No The allowed combinations of master and slave configured parts listed in Table 25 is sufficient to make any combination of power and channel count. Table 26 illustrates how isoPower devices can provide many combinations of data channel count and multiples of the single unit power. Table 26. Configurations for Power and Data Channels Power Units 1-Unit Power 0 ADuM5000 master 2 ADuM520xW master Number of Data Channels 4 ADuM5401W to ADuM5404W master 2-Unit Power ADuM5000 master ADuM5000 slave ADuM5000 master ADuM5000 slave ADuM5000 slave ADuM5000 master ADuM520xW slave ADuM5000 master ADuM5000 slave ADuM520xW slave ADuM5401W to ADuM5404W master ADuM520xW slave ADuM5401W to ADuM5404W master ADuM5000 slave ADuM5000 slave 3-Unit Power Rev. 0 | Page 23 of 28 6 ADuM5401W to ADuM5404W master ADuM120xW ADuM5401W to ADuM5404W master ADuM520xW slave ADuM5401W to ADuM5404W master ADuM520xW slave ADuM5000 slave ADuM5200W/ADuM5201W/ADuM5202W The insulation lifetime of the ADuM5200W/ADuM5201W/ ADuM5202W depends on the voltage waveform type imposed across the isolation barrier. The iCoupler insulation structure degrades at different rates depending on whether the waveform is bipolar ac, unipolar ac, or dc. Figure 28, Figure 29, and Figure 30 illustrate these different isolation voltage waveforms. Bipolar ac voltage is the most stringent environment. The goal of a 50-year operating lifetime under the ac bipolar condition determines the maximum working voltage recommended by Analog Devices. Rev. 0 | Page 24 of 28 RATED PEAK VOLTAGE 10436-121 Analog Devices performs accelerated life testing using voltage levels higher than the rated continuous working voltage. Acceleration factors for several operating conditions are determined. These factors allow calculation of the time to failure at the actual working voltage. The values shown in Table 20 summarize the peak voltage for 50 years of service life for a bipolar ac operating condition, and the maximum CSA/VDE approved working voltages. In many cases, the approved working voltage is higher than a 50-year service life voltage. Operation at these high working voltages can lead to shortened insulation life in some cases. 0V Figure 28. Bipolar AC Waveform RATED PEAK VOLTAGE 10436-122 All insulation structures eventually break down when subjected to voltage stress over a sufficiently long period. The rate of insulation degradation is dependent on the characteristics of the voltage waveform applied across the insulation. In addition to the testing performed by the regulatory agencies, Analog Devices carries out an extensive set of evaluations to determine the lifetime of the insulation structure within the ADuM5200W/ ADuM5201W/ADuM5202W. In the case of unipolar ac or dc voltage, the stress on the insulation is significantly lower. This allows operation at higher working voltages while still achieving a 50-year service life. The working voltages listed in Table 20 can be applied while maintaining the 50-year minimum lifetime, provided the voltage conforms to either the unipolar ac or dc voltage cases. Any cross insulation voltage waveform that does not conform to Figure 29 or Figure 30 should be treated as a bipolar ac waveform and its peak voltage limited to the 50-year lifetime voltage value listed in Table 20. The voltage presented in Figure 29 is shown as sinusoidal for illustration purposes only. It is meant to represent any voltage waveform varying between 0 V and some limiting value. The limiting value can be positive or negative, but the voltage cannot cross 0 V. 0V Figure 29. Unipolar AC Waveform RATED PEAK VOLTAGE 10436-123 INSULATION LIFETIME Automotive Products 0V Figure 30. DC Waveform Automotive Products ADuM5200W/ADuM5201W/ADuM5202W OUTLINE DIMENSIONS 10.50 (0.4134) 10.10 (0.3976) 9 16 7.60 (0.2992) 7.40 (0.2913) 8 1.27 (0.0500) BSC 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 0.51 (0.0201) 0.31 (0.0122) 10.65 (0.4193) 10.00 (0.3937) 0.75 (0.0295) 0.25 (0.0098) 2.65 (0.1043) 2.35 (0.0925) SEATING PLANE 45 8 0 1.27 (0.0500) 0.40 (0.0157) 0.33 (0.0130) 0.20 (0.0079) COMPLIANT TO JEDEC STANDARDS MS-013-AA CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. 03-27-2007-B 1 Figure 31. 16-Lead Standard Small Outline Package [SOIC_W] Wide Body (RW-16) Dimensions shown in millimeters and (inches) ORDERING GUIDE Number of Inputs, Model 1, 2, 3 VDD1 Side ADuM5200WCRWZ 2 ADuM5201WCRWZ 1 ADuM5202WCRWZ 0 Number of Inputs, VDD2 Side 0 1 2 Maximum Data Rate (Mbps) 25 25 25 Maximum Propagation Delay, 5 V (ns) 70 70 70 Maximum Pulse Width Distortion (ns) 3 3 3 Temperature Range -40C to +105C -40C to +105C -40C to +105C Package Description 16-Lead SOIC_W 16-Lead SOIC_W 16-Lead SOIC_W Package Option RW-16 RW-16 RW-16 1 Tape and reel are available. The additional -RL suffix designates a 13-inch (1,000 units) tape and reel option. Z = RoHS Compliant Part. 3 W = Qualified for Automotive Applications. 2 AUTOMOTIVE PRODUCTS The ADuM5200W, ADuM5201W, and ADuM5202W models are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. Note that these automotive models may have specifications that differ from the commercial models; therefore, designers should review the Specifications section of this data sheet carefully. Only the automotive grade products shown are available for use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for these models. Rev. 0 | Page 25 of 28 ADuM5200W/ADuM5201W/ADuM5202W NOTES Rev. 0 | Page 26 of 28 Automotive Products Automotive Products ADuM5200W/ADuM5201W/ADuM5202W NOTES Rev. 0 | Page 27 of 28 ADuM5200W/ADuM5201W/ADuM5202W NOTES (c)2012 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D10436-0-10/12(0) Rev. 0 | Page 28 of 28 Automotive Products