VNQ7050AJTR STMicroelectronics

VNQ7050AJ Quad channel high-side driver with CurrentSense analog feedback for automotive applications Datasheet - production data 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 Features Max transient supply voltage V 40 V CC Applications Operating voltage range VCC 4 to 28 V All types of Automotive resistive, inductive Typ. on-state resistance (per Ch) R 50 m ON and capacitive loads Current limitation (typ) ILIMH 27 A Specially intended for Automotive Signal Lamps (up to P27W or SAE1156 or LED Stand-by current (max) I 0.5 A STBY Rear Combinations) Automotive qualified Description General The device is a quad channel high-side driver Quad channel smart high-side driver manufactured using ST proprietary VIPower with CS analog feedback M0-7 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 5 outputs V CMOS-compatible interface, providing CurrentSense 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 Protections A sense enable pin allows OFF-state diagnosis to Undervoltage shutdown be disabled during the module low-power mode Overvoltage clamp as well as external sense resistor sharing among Load current limitation similar devices. June 2015 DocID027405 Rev 1 1/42 www.st.com This is information on a product in full production. Contents VNQ7050AJ 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 Maximum demagnetization energy (VCC = 16 V) ........................ 31 6 Package and PCB thermal data .................................................... 32 6.1 PowerSSO-16 thermal data ............................................................ 32 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 DocID027405 Rev 1