VN7020AJTR-E

VN7020AJ Datasheet High-side driver with MultiSense analog feedback for automotive applications Features PowerSSO-16 Max transient supply voltage VCC 40 V Operating voltage range VCC 4 to 28 V Typ. on-state resistance (per Ch) RON 20 mΩ Current limitation (typ) ILIMH 63 A Standby current (max) ISTBY 0.5 µA • • • Product status link VN7020AJ • AEC-Q100 qualified General – Single channel smart high-side driver with MultiSense analog feedback – Very low standby current – Compatible with 3 V and 5 V CMOS outputs MultiSense diagnostic functions – Multiplexed analog feedback of: load current with high precision proportional current mirror, VCC supply voltage and TCHIP device temperature – Overload and short to ground (power limitation) indication – Thermal shutdown indication – OFF-state open-load detection – Output short to VCC detection – Sense enable/disable Protections – Undervoltage shutdown – Overvoltage clamp – Load current limitation – Self limiting of fast thermal transients – Configurable latch-off on overtemperature or power limitation with dedicated fault reset pin – Loss of ground and loss of VCC – – Reverse battery with external components Electrostatic discharge protection Applications • • • All types of Automotive resistive, inductive and capacitive loads Specially intended for automotive turn indicators (up to 2x P27W or SAE1156 and R5W paralleled or LED rear combinations) Protected supply for ADAS systems: radars and sensors Description The device is a dual channel high-side driver manufactured using ST proprietary VIPower® M0-7 technology and housed in PowerSSO-16 package. The device is DS10831 - Rev 4 - July 2018 For further information contact your local STMicroelectronics sales office. www.st.com VN7020AJ designed to drive 12 V automotive grounded loads through a 3 V and 5 V CMOScompatible interface, providing protection and diagnostics. The device integrates advanced protective functions such as load current limitation, overload active management by power limitation and overtemperature shutdown with configurable latch-off. A FaultRST pin unlatches the output in case of fault or disables the latch-off functionality. A dedicated multifunction multiplexed analog output pin delivers sophisticated diagnostic functions including high precision proportional load current sense, supply voltage feedback and chip temperature sense, in addition to the detection of overload and short circuit to ground, short to VCC and OFF-state open-load. A sense enable pin allows OFF-state diagnosis to be disabled during the module lowpower mode as well as external sense resistor sharing among similar devices. DS10831 - Rev 4 page 2/45 VN7020AJ Block diagram and pin description 1 Block diagram and pin description Figure 1. Block diagram VCC Internal supply VCC – GND Clamp Undervoltage shut-down Control & Diagnostic VCC – OUT Clamp FaultRST INPUT Gate Driver SEL1 T VCC VON Limitation SEL0 Current Limitation MUX SEn MultiSense Power Limitation Overtemperature T Short to VCC Open-Load in OFF Current Sense Fault VSENSEH GND OUTPUT GAPGCFT00328 Table 1. Pin functions Name VCC OUTPUT GND INPUT MultiSense SEn SEL0,1 FaultRST DS10831 - Rev 4 Function Battery connection. Power outputs. All the pins must be connected together. Ground connection. Must be reverse battery protected by an external diode / resistor network. Voltage controlled input pin with hysteresis, compatible with 3 V and 5 V CMOS outputs. It controls output switch state. Multiplexed analog sense output pin; it delivers a current proportional to the selected diagnostic: load current, supply voltage or chip temperature. Active high compatible with 3 V and 5 V CMOS outputs pin; it enables the MultiSense diagnostic pin. Active high compatible with 3 V and 5 V CMOS outputs pin; they address the MultiSense multiplexer. Active low compatible with 3 V and 5 V CMOS outputs pin; it unlatches the output in case of fault; If kept low, sets the outputs in auto-restart mode. page 3/45 VN7020AJ Block diagram and pin description Figure 2. Configuration diagram (top view) PowerSSO-16 INPUT FaultRST SEn GND SEL0 SEL1 MultiSense N.C. 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 OUTPUT OUTPUT OUTPUT OUTPUT N.C. N.C. N.C. N.C. TAB = V CC GAPG2901151613CFT Table 2. Suggested connections for unused and not connected pins Connection / pin MultiSense N.C. Output Input SEn, SELx, FaultRST Floating Not allowed X(1) X X X To ground Through 1 kΩ resistor X Not allowed Through 15 kΩ resistor Through 15 kΩ resistor 1. X: do not care. DS10831 - Rev 4 page 4/45 VN7020AJ Electrical specification 2 Electrical specification Figure 3. Current and voltage conventions IS VCC FaultRST I SEn I OUT OUTPUT 0,1 CS SEL 0 VSEn VSEL V OUT I SENSE SE n I SEL VFR VCC VFn I FR VSENSE I IN INPUT 0,1 VIN I GND GADG2203170950PS Note: VF = VOUT - VCC during reverse battery condition. 2.1 Absolute maximum ratings Stressing the device above the rating listed in Table 3. Absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. Exposure to the conditions in table below for extended periods may affect device reliability. Table 3. Absolute maximum ratings Symbol Value Unit VCC DC supply voltage 38 -VCC Reverse DC supply voltage 0.3 VCCPK Maximum transient supply voltage (ISO 16750-2:2010 Test B clamped to 40 V; RL = 4 Ω) 40 V VCCJS Maximum jump start voltage for single pulse short circuit protection 28 V -IGND DC reverse ground pin current 200 mA IOUT OUTPUT DC output current Internally limited -IOUT Reverse DC output current 17 IIN DS10831 - Rev 4 Parameter V A INPUT DC input current ISEn SEn DC input current ISEL SEL0,1 DC input current IFR FaultRST DC input current VFR FaultRST DC input voltage -1 to 10 mA 7.5 V page 5/45 VN7020AJ Thermal data Symbol Parameter ISENSE EMAX Value MultiSense pin DC output current (VGND = VCC and VSENSE < 0 V) 10 MultiSense pin DC output current in reverse (VCC < 0 V) -20 Maximum switching energy (single pulse) (TDEMAG = 0.4 ms; Tjstart = 150 °C) 64 mJ 4000 V 2000 V mA Electrostatic discharge (JEDEC 22A-114F) VESD VESD Tstg 2.2 • INPUT • MultiSense • SEn, SEL0,1, FaultRST 4000 V • OUTPUT 4000 V • VCC 4000 V 750 V Charge device model (CDM-AEC-Q100-011) Tj Unit Junction operating temperature -40 to 150 Storage temperature -55 to 150 °C Thermal data Table 4. Thermal data Symbol Parameter Typ. value Rthj-board Thermal resistance junction-board (JEDEC JESD 51-5 / Rthj-amb Thermal resistance junction-ambient (JEDEC JESD 51-5)(2) 57 Rthj-amb Thermal resistance junction-ambient (JEDEC JESD 51-7) 23 51-8)(1) Unit 5.2 °C/W 1. Device mounted on four-layers 2s2p PCB 2. Device mounted on two-layers 2s0p PCB with 2 cm2 heatsink copper trace 2.3 Main electrical characteristics 7 V < VCC < 28 V; -40°C < Tj < 150°C, unless otherwise specified. All typical values refer to VCC = 13 V; Tj = 25°C, unless otherwise specified. Table 5. Power section Symbol Parameter Test conditions Typ. Max. Unit 4 13 28 V VCC Operating supply voltage VUSD Undervoltage shutdown 4 V Undervoltage shutdown reset 5 V VUSDReset VUSDhyst Undervoltage shutdown hysteresis 0.3 IOUT = 3 A; Tj = 25°C RON DS10831 - Rev 4 Min. On-state resistance V 20 IOUT = 3 A; Tj = 150°C 40 IOUT = 3 A; VCC = 4 V; Tj = 25°C 30 mΩ page 6/45 VN7020AJ Main electrical characteristics Symbol Parameter Vclamp Test conditions Clamp voltage Supply current in standby at VCC = 13 V(1) ISTBY tD_STBY IS(ON) IGND(ON) VF Typ. Max. Unit IS = 20 mA; 25°C < Tj < 150°C 41 46 52 V IS = 20 mA; Tj = -40°C 38 0.5 VCC = 13 V; VIN = VOUT = VFR = VSEn = 0 V; VSEL0,1 = 0 V; Tj = 85°C(2) 0.5 VCC = 13 V; VIN = VOUT = VFR = VSEn = 0 V; VSEL0,1 = 0 V; Tj = 125°C 3 VCC = 13 V; VIN = VOUT = VFR = VSEL0,1 = 0 V; VSEn = 5 V to 0V Supply current VCC = 13 V; VSEn = VFR = VSEL0,1 = 0 V; VIN = 5 V; IOUT = 0 A Control stage current consumption in ON state. All channels active. VCC = 13 V; VSEn = 5 V; VFR = VSEL0,1 = 0 V; VIN = 5 V; IOUT = 3 A Output - VCC diode voltage V VCC = 13 V; VIN = VOUT = VFR = VSEn = 0 V; VSEL0,1 = 0 V; Tj = 25°C Standby mode blanking time Off-state output current at VCC = 13 V IL(off) Min. 60 VIN = VOUT = 0 V; VCC = 13 V; Tj = 25°C 0 VIN = VOUT = 0 V; VCC = 13 V; Tj = 125°C 0 µA 300 550 µs 3 5 mA 6 mA 0.01 0.5 µA 3 IOUT = -3 A; Tj = 150°C 0.7 V 1. PowerMOS leakage included. 2. Parameter specified by design; not subject to production test. Table 6. Switching VCC = 13 V; -40°C < Tj < 150°C, unless otherwise specified Symbol Parameter td(on) (1) Turn-on delay time at Tj = 25 °C td(off) (1) (dVOUT/dt)on (1) (dVOUT/dt)off (1) Turn-off delay time at Tj = 25 °C Turn-on voltage slope at Tj = 25 °C Turn-off voltage slope at Tj = 25 °C Test conditions Min. Typ. Max. 10 60 120 RL = 4.3 Ω Unit µs 10 40 100 0.1 0.28 0.7 0.1 0.32 0.7 RL = 4.3 Ω V/µs WON Switching energy losses at turn-on (twon) RL = 4.3 Ω — 0.36 0.54 (2) mJ WOFF Switching energy losses at turn-off (twoff) RL = 4.3 Ω — 0.37 0.54(2) mJ Differential pulse skew (tPHL tPLH) RL = 4.3 Ω -75 -25 25 µs tSKEW (1) 1. See Figure 6. Switching time and pulse skew. DS10831 - Rev 4 page 7/45 VN7020AJ Main electrical characteristics 2. Parameter guaranteed by design and characterization; not subject to production test. Table 7. Logic inputs 7 V < VCC < 28 V; -40°C < Tj < 150°C Symbol Parameter Test conditions Min. Typ. Max. Unit 0.9 V INPUT characteristics VIL Input low level voltage IIL Low level input current VIH Input high level voltage IIH High level input current VI(hyst) Input hysteresis voltage VICL Input clamp voltage VIN = 0.9 V 1 µA 2.1 V VIN = 2.1 V 10 0.2 IIN = 1 mA V 5.3 IIN = -1 mA µA 7.2 -0.7 V FaultRST characteristics VFRL Input low level voltage IFRL Low level input current VFRH Input high level voltage IFRH High level input current VFR(hyst) Input hysteresis voltage VFRCL Input clamp voltage 0.9 VIN = 0.9 V 1 µA 2.1 V VIN = 2.1 V 10 0.2 IIN = 1 mA V V 5.3 IIN = -1 mA µA 7.5 -0.7 V SEL0,1 characteristics (7 V < VCC < 18 V) VSELL Input low level voltage ISELL Low level input current VSELH Input high level voltage ISELH High level input current VSEL(hyst) Input hysteresis voltage VSELCL Input clamp voltage 0.9 VIN = 0.9 V 1 µA 2.1 V VIN = 2.1 V 10 0.2 IIN = 1 mA V V 5.3 IIN = -1 mA µA 7.2 -0.7 V SEn characteristics (7 V < VCC < 18 V) VSEnL Input low level voltage ISEnL Low level input current VSEnH Input high level voltage ISEnH High level input current VSEn(hyst) Input hysteresis voltage VSEnCL DS10831 - Rev 4 Input clamp voltage 0.9 VIN = 0.9 V 1 µA 2.1 V VIN = 2.1 V 10 0.2 IIN = 1 mA IIN = -1 mA V µA V 5.3 7.2 -0.7 V page 8/45 VN7020AJ Main electrical characteristics Table 8. Protections 7 V < VCC < 18 V; -40°C < Tj < 150°C Symbol Parameter Test conditions ILIMH DC short circuit current ILIML Short circuit current during thermal cycling TTSD Shutdown temperature TR Reset TRS Thermal reset of fault diagnostic indication Typ. 45 63 VCC = 13 V 4 V < VCC < 18 V Max. A VCC = 13 V; TR < Tj < TTSD temperature(1) 23 150 175 TRS + 1 TRS + 7 VFR = 0 V; VSEn = 5 V Thermal hysteresis (TTSD TR)(1) ΔTJ_SD Dynamic temperature Tj = -40°C; VCC = 13 V Fault reset time for output unlatch(1) VFR = 5 V to 0 V; VSEn = 5 V; VIN = 5 V; VSEL0 = 0 V; VSEL1 = 0 V Unit 90 (1) THYST tLATCH_RST Min. 200 °C 135 7 60 3 IOUT = 2 A; L = 6 mH; Tj = -40°C VCC - 38 VDEMAG Turn-off output voltage clamp IOUT = 2 A; L = 6 mH; Tj = 25°C to 150°C VCC - 41 VON Output voltage drop limitation IOUT = 0.5 A K 10 20 µs V VCC - 46 VCC - 52 20 V mV 1. Parameter guaranteed by design and characterization; not subject to production test. Table 9. MultiSense 7 V < VCC < 18 V; -40°C < Tj < 150°C Symbol VSENSE_CL Parameter MultiSense clamp voltage Test conditions Min. VSEn = 0 V; ISENSE = 1 mA -17 VSEn = 0 V; ISENSE = -1 mA Typ. Max. Unit -12 7 V CurrentSense characteristics KOL dKcal/Kcal (1) (2) KLED dKLED/KLED (1) (2) K0 dK0/K0 (1) (2) K1 dK1/K1 (1) (2) K2 DS10831 - Rev 4 IOUT/ISENSE IOUT = 0.01 A; VSENSE = 0.5 V; VSEn = 5 V 550 Current sense ratio drift at calibration point IOUT = 0.01 A to 0.05 A; Ical = 30 mA; VSENSE = 0.5 V; VSEn = 5 V -30 IOUT/ISENSE IOUT = 0.1 A; VSENSE = 0.5 V; VSEn = 5 V Current sense ratio drift IOUT = 0.1 A; VSENSE = 0.5 V; VSEn = 5 V IOUT/ISENSE IOUT = 0.5 A; VSENSE = 0.5 V; VSEn = 5 V Current sense ratio drift IOUT = 0.5 A; VSENSE = 0.5 V; VSEn = 5 V IOUT/ISENSE IOUT = 1 A; VSENSE = 4 V; VSEn = 5 V Current sense ratio drift IOUT = 1 A; VSENSE = 4 V; VSEn = 5 V IOUT/ISENSE IOUT = 3 A; VSENSE = 4 V; VSEn = 5 V 30 % 1800 3630 5100 -25 25 % 2230 3200 4120 -20 20 % 2180 2970 3900 -15 15 % 2450 2880 3320 page 9/45 VN7020AJ Main electrical characteristics 7 V < VCC < 18 V; -40°C < Tj < 150°C Symbol dK2/K2 (1) (2) K3 dK3/K3 (1) (2) Parameter Test conditions Min. Current sense ratio drift IOUT = 3 A; VSENSE = 4 V; VSEn = 5 V -10 IOUT/ISENSE IOUT = 9 A; VSENSE = 4 V; VSEn = 5 V Current sense ratio drift IOUT = 9 A; VSENSE = 4 V; VSEn = 5 V -5 5 MultiSense disabled: VSEn = 0 V 0 0.5 -0.5 0.5 MultiSense enabled: VSEn = 5 V; Channel ON; IOUT = 0 A; Diagnostic selected; VIN = 5 V; VSEL0 = 0 V; VSEL1 = 0 V; IOUT = 0 A 0 2 MultiSense enabled: VSEn = 5 V; Channel OFF; Diagnostic selected: VIN = 0 V; VSEL0 = 0 V; VSEL1 = 0 V 0 2 MultiSense disabled: -1 V < VSENSE < 5 V(1) ISENSE0 MultiSense leakage current Typ. Max. Unit 10 % 2650 2860 3070 % µA VOUT_MSD (1) VIN = 5 V; VSEn = 5 V; VSEL0 = 0 V; Output Voltage for MultiSense VSEL1 = 0 V; RSENSE = 2.7 kΩ; shutdown IOUT = 3 A VSENSE_SAT Multisense saturation voltage VCC = 7 V; RSENSE = 2.7 kΩ; VSEn = 5 V; VIN = 5 V; VSEL0 = 0 V; VSEL1 = 0 V; IOUT = 9 A; Tj = 150°C 5 V CS saturation current VCC = 7 V; VSENSE = 4 V; VIN = 5 V; VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 0 V; Tj = 150°C 4 mA Output saturation current VCC = 7 V; VSENSE = 4 V; VIN = 5 V; VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 0 V; Tj = 150°C 12 A ISENSE_SAT (1) IOUT_SAT (1) 5 V OFF-state diagnostic VOL OFF-state open-load voltage detection threshold VIN = 0 V; VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 0 V 2 IL(off2) OFF-state output sink current VIN = 0 V; VOUT = VOL; VSEn = 5 V -100 tDSTKON OFF-state diagnostic delay time from falling edge of INPUT (see Figure 9. TDSTKON ) VIN = 5 V to 0 V; VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 0 V; IOUT = 0 A; VOUT = 4 V 100 tD_OL_V Settling time for valid OFFstate open load diagnostic indication from rising edge of SEn VIN = 0 V; VFR = 0 V; VSEL0 = 0 V; VSEL1 = 0 V; VOUT = 4 V; VSEn = 0 V to 5 V tD_VOL OFF-state diagnostic delay time from rising edge of VOUT VIN = 0 V; VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 0 V; VOUT = 0 V to 4 V 3 350 5 4 V -15 µA 700 µs 60 µs 30 µs Chip temperature analog feedback VSENSE_TC DS10831 - Rev 4 MultiSense output voltage proportional to chip temperature VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 5 V; VIN = 0 V; RSENSE = 1 kΩ; Tj = -40°C 2.325 2.41 2.495 V VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 5 V; VIN = 0 V; RSENSE = 1 kΩ; Tj = 25°C 1.985 2.07 2.155 V VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 5 V; VIN = 0 V; RSENSE = 1 kΩ; Tj = 125°C 1.435 1.52 1.605 V page 10/45 VN7020AJ Main electrical characteristics 7 V < VCC < 18 V; -40°C < Tj < 150°C Symbol dVSENSE_TC/dT Parameter Test conditions Temperature coefficient Tj = -40°C to 150°C Min. Typ. Max. Unit -5.5 mV/ K VSENSE_TC (T) = VSENSE_TC (T0) + dVSENSE_TC / dT * (T - T0) Transfer function VCC supply voltage analog feedback VSENSE_VCC MultiSense output voltage proportional to VCC supply voltage Transfer function(3) VCC = 13 V; VSEn = 5 V; VSEL0 = 5 V; VSEL1 = 5 V; VIN = 0 V; RSENSE = 1 kΩ 3.16 3.23 3.3 V 6.6 V 30 mA 60 µs VSENSE_VCC = VCC / 4 Fault diagnostic feedback (see Table 10. Truth table) VSENSEH MultiSense output voltage in fault condition VCC = 13 V; VIN = 0 V; VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 0 V; IOUT = 0 A; VOUT = 4 V; RSENSE = 1 kΩ 5 ISENSEH MultiSense output current in fault condition VCC = 13 V; VSENSE = 5 V 7 20 MultiSense timings (current sense mode - see Figure 7. MultiSense timings (current sense mode)) (4) tDSENSE1H Current sense settling time from rising edge of SEn VIN = 5 V; VSEn = 0 V to 5 V; RSENSE = 1 kΩ; RL = 4.3 Ω tDSENSE1L Current sense disable delay time from falling edge of SEn VIN = 5 V; VSEn = 5 V to 0 V; RSENSE = 1 kΩ; RL = 4.3 Ω 5 20 µs tDSENSE2H Current sense settling time from rising edge of INPUT VIN = 0 V to 5 V; VSEn = 5 V; RSENSE = 1 kΩ; RL = 4.3 Ω 100 250 µs ΔtDSENSE2H Current sense settling time from rising edge of IOUT (dynamic response to a step change of IOUT) VIN = 5 V; VSEn = 5 V; RSENSE = 1 kΩ; ISENSE = 90 % of ISENSEMAX; RL = 4.3 Ω 100 µs tDSENSE2L Current sense turn-off delay time from falling edge of INPUT VIN = 5 V to 0 V; VSEn = 5 V; RSENSE = 1 kΩ; RL = 4.3 Ω 250 µs 50 MultiSense timings (chip temperature sense mode - see Figure 8. Multisense timings (chip temperature and VCC sense mode)) (4) tDSENSE3H VSENSE_TC settling time from rising edge of SEn VSEn = 0 V to 5 V; VSEL0 = 0 V; VSEL1 = 5 V; RSENSE = 1 kΩ 60 µs tDSENSE3L VSENSE_TC disable delay time from falling edge of SEn VSEn = 5 V to 0 V; VSEL0 = 0 V; VSEL1 = 5 V; RSENSE = 1 kΩ 20 µs MultiSense timings (VCC voltage sense mode - see Figure 8. Multisense timings (chip temperature and VCC sense mode)) (4) tDSENSE4H VSENSE_VCC settling time from VSEn = 0 V to 5 V; VSEL0 = 5 V; VSEL1 = 5 V; RSENSE = 1 kΩ rising edge of SEn 60 µs tDSENSE4L VSENSE_VCC disable delay time from falling edge of SEn VSEn = 5 V to 0 V; VSEL0 = 5 V; VSEL1 = 5 V; RSENSE = 1 kΩ 20 µs MultiSense timings (Multiplexer transition times)(4) DS10831 - Rev 4 tD_CStoTC MultiSense transition delay from current sense to TC sense VIN = 5 V; VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 0 V to 5 V; IOUT = 1.5 A; RSENSE = 1 kΩ 60 µs tD_TCtoCS MultiSense transition delay from TC sense to current sense VIN = 5 V; VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 5 V to 0 V; IOUT = 1.5 A; RSENSE = 1 kΩ 20 µs page 11/45 VN7020AJ Main electrical characteristics 7 V < VCC < 18 V; -40°C < Tj < 150°C Symbol Parameter Test conditions Min. Typ. Max. Unit tD_CStoVCC MultiSense transition delay from current sense to VCC sense VIN = 5 V; VSEn = 5 V; VSEL0 = 5 V; VSEL1 = 0 V to 5 V; IOUT = 1.5 A; RSENSE = 1 kΩ 60 µs tD_VCCtoCS MultiSense transition delay from VCC sense to current sense VIN = 5 V; VSEn = 5 V; VSEL0 = 5 V; VSEL1 = 5 V to 0 V; IOUT = 1.5 A; RSENSE = 1 kΩ 20 µs tD_TCtoVCC MultiSense transition delay from TC sense to VCC sense VCC = 13 V; Tj = 125°C; VSEn = 5 V; VSEL0 = 0 V to 5 V; VSEL1 = 5 V; RSENSE = 1 kΩ 20 µs tD_VCCtoTC MultiSense transition delay from VCC sense to TC sense VCC = 13 V; Tj = 125°C; VSEn = 5 V; VSEL0 = 5 V to 0 V; VSEL1 = 5 V; RSENSE = 1 kΩ 20 µs 1. Parameter specified by design; not subject to production test. 2. All values refer to VCC = 13 V; Tj = 25°C, unless otherwise specified. 3. VCC sensing and TC are referred to GND potential. 4. Transition delays are measured up to +/- 10% of final conditions. Figure 4. IOUT/ISENSE versus IOUT 6000 5500 Max 5000 Min 4500 Typ K-factor 4000 3500 3000 2500 2000 1500 1000 500 0 0 1 2 3 4 5 IOUT [A] 6 7 8 9 10 GAPG0309130938CFT DS10831 - Rev 4 page 12/45 VN7020AJ Main electrical characteristics Figure 5. Current sense accuracy versus IOUT 65 60 55 50 45 40 35 % 30 25 20 15 10 5 0 Current sense uncalibrated precision Current sense calibrated precision 0 1 2 3 4 5 IOUT [A] 6 7 8 9 10 GAPG0309130941CFT Figure 6. Switching time and pulse skew twon VOUT twoff Vcc 80% Vcc ON OFF dVOUT/dt dVOUT/dt 20% Vcc t INPUT td(off) td(on) tpLH tpHL t DS10831 - Rev 4 page 13/45 VN7020AJ Main electrical characteristics Figure 7. MultiSense timings (current sense mode) IN1 High SEn Low High SEL0 Low High SEL1 Low IOUT1 CURRENT SENSE tDSENSE2H tDSENSE1L tDSENSE1H tDSENSE2L Figure 8. Multisense timings (chip temperature and VCC sense mode) High SEn Low High SEL0 Low High SEL1 Low VCC VSENSE = VSENSE_VCC VSENSE = VSENSE_TC SENSE tDSENSE4H tDSENSE4L VCC VOLTAGE SENSE MODE tDSENSE3H tDSENSE3L CHIP TEMPERATURE SENSE MODE GAPGCFT00319 DS10831 - Rev 4 page 14/45 VN7020AJ Main electrical characteristics Figure 9. TDSTKON VINPUT VOUT VOUT > VOL MultiSense TDSTKON GAPG2609141140CFT Table 10. Truth table INX FR SEn SELX OUTX MultiSense Mode Conditions Standby All logic inputs low L L L X H L Hi-Z L See (1) H See (1) Outputs configured for auto-restart H H H See (1) Outputs configured for Latch-off Overload or short to GND causing: L X L See (1) Tj > TTSD or H L H See (1) Output cycles with temperature hysteresis ΔTj > ΔTj _SD H H L See (1) Output latches-off L Hi-Z Re-start when VCC > VUSD + L Hi-Z Tj < 150 °C Overload Undervoltage VCC < VUSD (falling) OFF-state diagnostics Short to VCC L X Open-load L X Inductive loads turn-off L X Negative output voltage X X L Low quiescent current consumption L Nominal load connected; Normal L Comments See (1) See (1) X X See (1) See (1) VUSDhyst (rising) (1) H See H See (1) VOL; MUX channel = channel 0 diagnostic; Mutisense = VSENSEH 2.4 Waveforms Figure 10. Latch functionality - behavior in hard short-circuit condition (TAMB t latch RST I limH Fault Reset Output current Junction temperature