VND5025AK-E

VND5025AK-E Double channel high side driver with analog current sense for automotive applications Features Max transient supply voltage VCC 41V Operating voltage range VCC 4.5 to 36V Max on-state resistance (per ch.) RON 25 mΩ Current limitation (typ) ILIMH 41 A Off-state supply current IS 2 µA(1) PowerSSO-24™ – Electrostatic discharge protection Application 1. Typical value with all loads connected. ■ ■ ■ Main – In-rush current active management by power limitation – Very low standby current – 3.0V CMOS compatible input – Optimized electromagnetic emission – Very low electromagnetic susceptibility – In compliance with the 2002/95/EC European directive – Package: ECOPACK® Diagnostic functionsDoc ID 12581 – Proportional load current sense – High current sense precision for wide range currents – Current sense disable – Thermal shutdown indication – Very low current sense leakage Protection – Undervoltage shut-down – Overvoltage clamp – Load current limitation – Self-limiting of fast thermal transients – Protection against loss of ground and loss of VCC – Thermal shutdown – Reverse battery protection (see Application schematic on page 21) Table 1. ■ All types of resistive, inductive and capacitive loads ■ Suitable as LED driver Description The VND5025AK-E is a monolithic device made using STMicroelectronics VIPower M0-5 technology, intended for driving resistive or inductive loads with one side connected to ground, and suitable for driving LEDs. Active VCC pin voltage clamp protects the device against low energy spikes (see ISO7637 transient compatibility table). This device integrates an analog current sense which delivers a current proportional to the load current (according to a known ratio) when CS_DIS is driven low or left open. When CS_DIS is driven high, the CURRENT SENSE pin is in a high impedance condition. Output current limitation protects the device in overload condition. In case of long overload duration, the device limits the dissipated power to safe level up to thermal shut-down intervention. Thermal shut-down with automatic restart allows the device to recover normal operation as soon as fault condition disappears. Device summary Order codes Package PowerSSO-24™ September 2013 Tube Tape and reel VND5025AK-E VND5025AKTR-E Doc ID 12581 Rev 11 1/32 www.st.com 1 Contents VND5025AK-E Contents 1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Electrical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.4 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.1 4 6 2/32 3.1.1 Solution 1: resistor in the ground line (RGND only) . . . . . . . . . . . . . . . . 21 3.1.2 Solution 2: diode (DGND) in the ground line . . . . . . . . . . . . . . . . . . . . . 22 3.2 Load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.3 MCU I/Os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.4 Maximum demagnetization energy (VCC = 13.5V) . . . . . . . . . . . . . . . . . 23 Package and thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4.1 5 GND protection network against reverse battery . . . . . . . . . . . . . . . . . . . 21 PowerSSO-24™ thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5.1 ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5.2 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5.3 Packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Doc ID 12581 Rev 11 VND5025AK-E List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pin functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Suggested connections for unused and not connected pins . . . . . . . . . . . . . . . . . . . . . . . . 6 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Switching (VCC = 13V; Tj = 25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Logic input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Protection and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Current sense (8V < VCC < 16V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Electrical transient requirements (part 1/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical transient requirements (part 2/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical transient requirements (part 3/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Thermal parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 PowerSSO-24™ mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Doc ID 12581 Rev 11 3/32 List of figures VND5025AK-E List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. 4/32 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Configuration diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Current and voltage conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Current sense delay characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Delay response time between rising edge of output current and rising edge of Current Sense (CS enabled). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 IOUT/ISENSE vs IOUT (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Maximum current sense ratio drift vs load current(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Output voltage drop limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Off-state output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 High level input current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Input clamp voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Input high level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Input low level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Input hysteresis voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 On-state resistance vs Tcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 On-state resistance vs VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Undervoltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 ILIMH vs Tcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Turn-on voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Turn-off voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 CS_DIS high level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 CS_DIS low level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 CS_DIS clamp voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Maximum turn-off current versus inductance (for each channel) . . . . . . . . . . . . . . . . . . . . 23 PowerSSO-24™ PC board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Rthj-amb vs PCB copper area in open box free air condition (one channel ON) . . . . . . . . 24 PowerSSO-24™ thermal impedance junction to ambient single pulse (one channel ON) . 25 Thermal fitting model of a double channel HSD in PowerSSO-24™(1) . . . . . . . . . . . . . . . 25 PowerSSO-24™ package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 PowerSSO-24™ tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 PowerSSO-24™ tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Doc ID 12581 Rev 11 VND5025AK-E 1 Block diagram and pin description Block diagram and pin description Figure 1. Block diagram Vcc UNDERVOLTAGE VCC CLAMP OUTPUT1 PwCLAMP 1 GND CURRENT SENSE1 DRIVER 1 ILIM 1 INPUT1 LOGIC VDSLIM 1 PwrLIM 1 PwCLAMP 2 DRIVER 2 INPUT2 IOUT1 OUTPUT2 ILIM 2 OVERTEMP. 1 VDSLIM 2 CURRENT SENSE2 K1 OVERTEMP. 2 IOUT2 K2 PwrLIM 2 CS_DIS Table 2. Pin functions Name VCC OUTPUT1,2 GND INPUT1,2 Function Battery connection. Power output. Ground connection; must be reverse battery protected by an external diode/resistor network. Voltage controlled input pin with hysteresis, CMOS compatible; controls output switch state. CURRENT SENSE1,2 Analog current sense pin; delivers a current proportional to the load current. CS_DIS Active high CMOS compatible pin to disable the current sense pin. Doc ID 12581 Rev 11 5/32 Block diagram and pin description Figure 2. VND5025AK-E Configuration diagram (top view) VCC GND N.C. INPUT2 N.C. INPUT1 N.C. CURRENT SENSE1 N.C. CURRENT SENSE2 CS_DIS. VCC 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 OUTPUT2 OUTPUT2 OUTPUT2 OUTPUT2 OUTPUT2 OUTPUT2 OUTPUT1 OUTPUT1 OUTPUT1 OUTPUT1 OUTPUT1 OUTPUT1 TAB = VCC Table 3. Suggested connections for unused and not connected pins Connection / pin Current sense N.C. Output Input CS_DIS Floating N.R.(1) X X X X To Ground Through 1kΩ resistor X N.R. Through 10kΩ resistor Through 10kΩ resistor 1. Not recommended. 6/32 Doc ID 12581 Rev 11 VND5025AK-E 2 Electrical specification Electrical specification Figure 3. Current and voltage conventions IS VCC ICSD VOUT1 ISENSE1 IIN1 CURRENT SENSE1 INPUT1 VIN1 VCC OUTPUT1 CS_DIS VCSD VF IOUT1 IIN2 IOUT2 VSENSE1 OUTPUT2 INPUT2 ISENSE2 VIN2 VOUT2 CURRENT SENSE2 GND VSENSE2 IGND Note: VFn = VOUTn - VCC during reverse battery condition. 2.1 Absolute maximum ratings Stressing the device above the rating listed in the “Absolute maximum ratings” table 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. Refer also to the STMicroelectronics SURE Program and other relevant quality document. Table 4. Absolute maximum ratings Symbol Parameter Value VCC DC supply voltage 41 -VCC Reverse DC supply voltage 0.3 -IGND DC reverse ground pin current 200 IOUT DC output current - IOUT Reverse DC output current IIN ICSD Unit V mA Internally limited A 24 DC input current -1 to 10 DC current sense disable input current -ICSENSE DC reverse CS pin current VCSENSE Current sense maximum voltage Doc ID 12581 Rev 11 mA 200 VCC - 41 to +VCC V 7/32 Electrical specification Table 4. VND5025AK-E Absolute maximum ratings (continued) Symbol Unit 140 mJ Maximum switching energy (single pulse) (L = 0.8mH; RL = 0Ω; Vbat = 13.5V; Tjstart = 150°C; IOUT = IlimL(Typ.)) VESD Electrostatic discharge (Human Body Model: R = 1.5kΩ; C = 100pF) - Input - Current sense - CS_DIS - Output - VCC 4000 2000 4000 5000 5000 V V V V V VESD Charge device model (CDM-AEC-Q100-011) 750 V Tstg Junction operating temperature -40 to 150 Storage temperature -55 to 150 °C Thermal data Table 5. Symbol Thermal data Parameter Rthj-case Thermal resistance junction-case (MAX) (with one channel ON) Rthj-amb Thermal resistance junction-ambient (MAX) 8/32 Value EMAX Tj 2.2 Parameter Doc ID 12581 Rev 11 Max Value Unit 1.35 °C/W See Figure 29 VND5025AK-E 2.3 Electrical specification Electrical characteristics 8V