VNQ7040AYTR STMicroelectronics

VNQ7040AY Quad channel high-side driver with MultiSense analog feedback for automotive applications Datasheet - production data 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 through self turn-on Electrostatic discharge protection Features Applications Max transient supply voltage V 41 V CC All types of Automotive resistive, inductive Operating voltage range VCC 4 to 28 V and capacitive loads Specially intended for Automotive Turn Typ. on-state resistance (per ch) R 40 m ON Indicators (up to P27W or SAE1156 and Current limitation (typ) ILIMH 34 A R5W paralleled or LED Rear Combinations) Standby current (max) I 0.5 A STBY Description The device is a quad channel high-side driver manufactured using the latest ST proprietary AEC-Q100 qualified VIPower technology and housed in a General PowerSSO-36 package. The device is designed Quad channel smart high-side driver to drive 12 V automotive grounded loads through with MultiSense analog feedback a 3 V and 5 V CMOS-compatible interface, and to LED Mode for channel 0 and 1 provide protection and diagnostics. Very low standby current The device integrates advanced protective Compatible with 3 V and 5 V CMOS functions such as load current limitation, overload outputs active management by power limitation and MultiSense diagnostic functions overtemperature shutdown with configurable Multiplexed analog feedback of: latch-off. Load current with high precision proportional current mirror A FaultRST pin unlatches the output in case of VCC supply voltage fault or disables the latch-off functionality. TCHIP device temperature Overload and short to ground (power A dedicated multifunction multiplexed analog limitation) indication output pin delivers sophisticated diagnostic Thermal shutdown indication functions such as high precision proportional load OFF-state open load detection current sense, supply voltage feedback and chip Output short to VCC detection temperature sense, in addition to the detection of overload and short circuit to ground, short to V Sense enable/disable CC and OFF-state open-load. Protections Undervoltage shutdown The device features a dedicated LED Mode. Overvoltage clamp December 2017 DocID027406 Rev 4 1/50 www.st.com This is information on a product in full production. Contents VNQ7040AY Contents 1 Block diagram and pin description ................................................ 4 2 Electrical specification .................................................................... 6 2.1 Absolute maximum ratings ................................................................ 6 2.2 Thermal data ..................................................................................... 7 2.3 Electrical characteristics .................................................................... 7 2.3.1 General electrical specification ........................................................... 7 2.3.2 Bulb mode (default) .......................................................................... 16 2.3.3 Electrical characteristics curves - Bulb Mode ................................... 20 2.3.4 LED Mode (Channel 0 and 1) ........................................................... 24 2.3.5 Electrical characteristics curves - LED mode ................................... 27 2.3.6 Truth tables ....................................................................................... 28 3 Protections..................................................................................... 30 3.1 Power limitation ............................................................................... 30 3.2 Thermal shutdown ........................................................................... 30 3.3 Current limitation ............................................................................. 30 3.4 Negative voltage clamp ................................................................... 30 4 Application information ................................................................ 31 4.1 GND protection network against reverse battery ............................. 31 4.2 Immunity against transient electrical disturbances .......................... 32 4.3 MCU I/Os protection ........................................................................ 32 4.4 Multisense - analog current sense .................................................. 33 4.4.1 Principle of Multisense signal generation ......................................... 34 4.4.2 TCASE and VCC monitor ................................................................. 36 4.4.3 Short to VCC and OFF-state open-load detection ........................... 37 5 Maximum demagnetization energy (VCC = 16 V) ........................ 38 6 Package and PCB thermal data .................................................... 39 6.1 PowerSSO-36 thermal data ............................................................ 39 7 Package information ..................................................................... 43 7.1 PowerSSO-36 package information ................................................ 43 7.2 PowerSSO-36 packing information ................................................. 45 7.3 PowerSSO-36 marking information ................................................. 47 8 Order codes ................................................................................... 48 2/50 DocID027406 Rev 4