VN7008AJTR STMicroelectronics

VN7008AJ High-side driver with CurrentSense 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 with external components Features Electrostatic discharge protection Max transient supply voltage V 40 V CC Operating voltage range VCC 4 to 28 V Applications Typ. on-state resistance (per Ch) R 8.5 m ON All types of Automotive resistive, inductive Current limitation (typ) ILIMH 96 A and capacitive loads Specially intended for Automotive Standby current (max) I 0.5 A STBY Headlamps Automotive qualified Description General The device is a single channel high-side driver Single channel smart high side driver manufactured using ST proprietary VIPower with CS analog feedback technology and housed in PowerSSO-16 Very low standby current package. The device is designed to drive 12 V Compatible with 3 V and 5 V CMOS automotive grounded loads through a 3 V and outputs 5 V CMOS-compatible interface, and to provide CS diagnostic functions protection and diagnostics. Analog feedback of: load current with The device integrates advanced protective high precision proportional current functions such as load current limitation, overload mirror active management by power limitation and Overload and short to ground (power overtemperature shutdown with configurable limitation) indication latch-off. Thermal shutdown indication OFF-state open-load detection A FaultRST pin unlatches the output in case of detection Output short to VCC fault or disables the latch-off functionality. Sense enable/ disable A sense enable pin allows OFF-state diagnosis to Protections be disabled during the module low-power mode Undervoltage shutdown as well as external sense resistor sharing among Overvoltage clamp similar devices. March 2016 DocID027771 Rev 4 1/42 www.st.com This is information on a product in full production. Contents VN7008AJ Contents 1 Block diagram and pin description ................................................ 5 2 Electrical specification .................................................................... 7 2.1 Absolute maximum ratings ................................................................ 7 2.2 Thermal data ..................................................................................... 8 2.3 Main electrical characteristics ........................................................... 8 2.4 Waveforms ...................................................................................... 16 2.5 Electrical characteristics curves ...................................................... 19 3 Protections..................................................................................... 23 3.1 Power limitation ............................................................................... 23 3.2 Thermal shutdown ........................................................................... 23 3.3 Current limitation ............................................................................. 23 3.4 Negative voltage clamp ................................................................... 23 4 Application information ................................................................ 24 4.1 GND protection network against reverse battery ............................. 24 4.1.1 Diode (DGND) in the ground line ..................................................... 25 4.2 Immunity against transient electrical disturbances .......................... 25 4.3 MCU I/Os protection ........................................................................ 25 4.4 CS - analog current sense .............................................................. 26 4.4.1 Principle of CurrentSense signal generation .................................... 27 4.4.2 Short to VCC and OFF-state open-load detection ........................... 29 5 Package and PCB thermal data .................................................... 31 5.1 PowerSSO-16 thermal data ............................................................ 31 6 Maximum demagnetization energy (VCC = 16 V) ........................ 34 7 Package information ..................................................................... 35 7.1 PowerSSO-16 package information ................................................ 35 7.2 PowerSSO-16 packing information ................................................. 37 7.3 PowerSSO-16 marking information ................................................. 39 8 Order codes ................................................................................... 40 9 Revision history ............................................................................ 41 2/42 DocID027771 Rev 4