Datasheet ADuM4138 (Analog Devices) - 5

Data Sheet ADuM4138 Parameter Symbol Min Typ Max Unit Test Conditions/Comments
PGOOD Threshold Rising VPGOOD_R 12.4 13.0 13.45 V For FLYBACK_V code of 0000 17.3 18.2 18.8 V For FLYBACK_V code of 1111 Threshold Falling VPGOOD_F 11.77 12.3 12.75 V For FLYBACK_V code of 0000 16.64 17.2 17.76 V For FLYBACK_V code of 1111 Pull-Down NFET Resistance RPGOOD_PD 14 24 Ω PGOOD current (IPGSW) =10 mA Pull-Up Current Source IPG 66 78 88 µA PGOOD = 0 V, VDD1 = 12 V Filter Time Active tPGOOD_FILT1 30 40 50 µs Cleared tPGOOD_FILT2 0.5 2.25 4 µs FAULT Pull-Down NFET Resistance RNFLT_PD_FET 16 28 Ω FAULT current (IFT) = 10 mA Pull-Up Current Source INF 66 78 88 µA FAULT = 0 V, VDD1 = 12 V Hold Time tDALM 23.3 26.4 30.2 ms Low Gate Voltage Reference Voltage VVL 9.6 10 10.4 V Detect Delay Time tDVL 10.3 12.8 15.6 µs Fault Delay Time tDVL_FLT 530 735 940 ns Overcurrent Voltage Temperature, Disabled VOCD_TH 2 V T_RAMP_OP = 1 Temperature, Enabled VOCD_TH_EN 2.59 2.69 2.76 V T_RAMP_OP = 0, TS1 = 1.55 V 1.65 1.75 1.82 V T_RAMP_OP = 0, TS1 = 2.45 V Hysteresis Temperature, Disabled VOCD_HYST 0.17 V T_RAMP_OP = 1 Temperature, Enabled VOCD_HYST_EN 0.17 V T_RAMP_OP = 0, TS1 = 1.55 V 0.17 V T_RAMP_OP = 0, TS1 = 2.45 V Detect Delay Time tdOC 520 920 1340 ns OC_2LEV_OP = 0, OC_TIME_OP = 0 Fault Delay Time tdOC_FLT 510 735 960 ns OC_2LEV_OP=1 Detect Blanking tBLANK 0.275 0.36 0.47 µs tBLANK bits = 0001 Pin Pull-Up Current Source IOC 3.8 5 6.2 µA VDD2 = 25 V, OC1 = OC2 = 0 V Desaturation (DESAT) Detect Comparator Threshold Rising VDESAT_R 8.4 8.9 9.4 V Falling VDESAT_F 7.7 8.1 8.5 V Hysteresis VDESAT_H 0.85 V Internal Current Source IDESAT 365 490 570 µA DESAT = 0 V Fault Delay Time tDESAT_DELAY 620 825 1030 ns FAULT Pin Blank Time tDESAT_BLANK 300 450 620 ns DESAT Pin Pull-Down Resistance RDSON_DESAT 14 28 Ω DESAT current (ID) = 10 mA TSD Primary Side TSD Positive Edge tTSD_POS1 154 °C Negative Edge tTSD_NEG1 135 °C Secondary Side TSD Positive Edge tTSD_POS2 150 °C Negative Edge tTSD_NEG2 130 °C Isolated Temperature Sensor Temperature Sense Bias Current Source IT1 0.938 1.015 1.092 mA TS1 = 2.2 V IT2 0.953 1.03 1.107 mA TS2 = 2.2 V Temperature Sense Current Matching IT_MATCH 0.014 0.0415 mA TSx = 2.2 V Rev. 0 | Page 5 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ELECTRICAL CHARACTERISTICS SPI TIMING SPECIFICATIONS SPI Timing Diagram PACKAGE CHARACTERISTICS REGULATORY INFORMATION (PENDING) INSULATION AND SAFETY-RELATED SPECIFICATIONS DIN V VDE V 0884-10 (VDE V 0884-10):2016-12 INSULATION CHARACTERISTICS (PENDING) RECOMMENDED OPERATING CONDITIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION PCB LAYOUT ISOLATED FLYBACK CONTROLLER SPI AND EEPROM OPERATION SPI Programming USER REGISTER MAP USER REGISTER BITS OFFSET_2[5:0] Bits GAIN_2[5:0] Bits OFFSET_1[5:0] Bits GAIN_1[5:0] Bits CONFIGURATION REGISTER BITS OT_FAULT_OP Bit OT_FAULT_SEL Bit OC_TIME_OP Bit OC_2LEV_OP Bits LOW_T_OP Bit OC_BLANK_OP Bit tBLANK[3:0] Bits ECC_OFF_OP Bit FLYBACK_V[3:0] Bits T_RAMP_OP Bit PWM_OSC Bit CONTROL REGISTER BITS ECC2_DBL_ERR Bit ECC2_SNG_ERR Bit ECC1_DBL_ERR Bit ECC1_SNG_ERR Bit PROG_BUSY Bit SIM_TRIM Bit PROPAGATION DELAY RELATED PARAMETERS PROTECTION FEATURES Primary Side UVLO Fault Reporting Overcurrent Detection High Speed, Two-Level, Turn Off Miller Clamp Desaturation Detection Thermal Shutdown Isolated Temperature Sensor POWER DISSIPATION INSULATION LIFETIME DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY TYPICAL APPLICATION CIRCUIT OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS