VND7050AJ12TR STMicroelectronics

VND7050AJ12 Double channel high-side driver with CurrentSense analog feedback for automotive applications Datasheet - production data Sense enable/ disable Protections Undervoltage shutdown Overvoltage clamp Load current limitation Self limiting of fast thermal transients PowerSSO-12 Loss of ground and loss of V CC GAPG040515 1112CFT Reverse battery with external components Features Electrostatic discharge protection Max transient supply voltage V 40 V CC Applications Operating voltage range VCC 4 V to 28 V All types of Automotive resistive, inductive Minimum cranking supply VUSD Cranking 2.85 V and capacitive loads voltage (V decreasing) CC Specially intended for Automotive Signal Typ. on-state resistance Lamps (up to P27W or SAE1156 or LED R 50 m ON (per Ch) Rear Combinations) Current limitation (typ) I 30 A LIMH Description Standby current (max) ISTBY 0.5 A The device is a double channel high-side driver manufactured using ST proprietary VIPower Automotive qualified technology and housed in PowerSSO-12 Extreme low voltage operation for deep cold package. The device is designed to drive 12 V cranking applications (compliant with LV124, automotive grounded loads through a 3 V and revision 2013) 5 V CMOS compatible interface, providing General protection and diagnostics. Double channel smart high-side driver The device integrates advanced protective with CurrentSense analog feedback functions such as load current limitation, overload Very low standby current active management by power limitation and Compatible with 3 V and 5 V CMOS overtemperature shutdown. outputs CurrentSense diagnostic functions A current sense delivers high precision Multiplexed analog feedback of: load proportional load current sense in addition to the current with high precision proportional detection of overload and short circuit to ground, current mirror short to VCC and off-state open-load. Overload and short to ground (power A sense enable pin allows off-state diagnosis to limitation) indication be disabled during the module low-power mode Thermal shutdown indication as well as external sense resistor sharing among Off-state open-load detection similar devices. Output short to V detection CC September 2015 DocID027585 Rev 3 1/43 www.st.com This is information on a product in full production. Contents VND7050AJ12 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 ...................................................................................... 18 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 ........................................................................ 26 4.4 Behaviour during engine start transients ......................................... 26 4.5 CurrentSense - analog current sense ............................................. 28 4.5.1 Principle of CurrenSense signal generation ..................................... 29 4.5.2 Short to VCC and OFF-state open-load detection ........................... 31 5 Maximum demagnetization energy (VCC = 16 V) ........................ 33 6 Package and PCB thermal data .................................................... 34 6.1 PowerSSO-12 thermal data ............................................................ 34 7 Package information ..................................................................... 37 7.1 PowerSSO-12 package information ................................................ 37 7.2 PowerSSO-12 packing information ................................................. 38 7.3 PowerSSO-12 marking information ................................................. 40 8 Order codes ................................................................................... 41 9 Revision history ............................................................................ 42 2/43 DocID027585 Rev 3