VNQ9050LAJ [STMicroelectronics]

The VNQ9050LAJ is a quad channel high-side driver manufactured using ST proprietary VIPower M0-9 technology and housed in PowerSSO-16 package. The device is designed to drive 12 V automotive grounded loads through a 3 V and 5 V CMOS-compatible interface, providing protection and diagnostics.

The device integrates advanced protective functions such as load current limitation, overload active management by power limitation and overtemperature shutdown with configurable latch-off.

A FaultRST pin unlatches the output in case of fault or disables the latch-off functionality.

A dedicated multifunction multiplexed analog output pin delivers diagnostic functions including high precision proportional load current sense, in addition to the detection of overload and short circuit to ground, short to VCC and OFF-state open-load.

A sense enable pin allows OFF-state diagnosis to be disabled during the module low-power mode as well as external sense resistor sharing among similar devices.

• Designed for automotive applications
• Extreme low voltage operation for deep cold cranking applications (compliant with LV124, revision 2013)
• General
  • Quad channel smart high-side driver with current sense analog feedback
  • Very low standby current
  • Compatible with 3 V and 5 V CMOS outputs
• Current sense diagnostic functions
  • Multiplexed analog feedback of load current with high precision proportional current mirror
  • Overload and short to ground (power limitation) indication
  • Thermal shutdown indication
  • OFF-state open-load detection (with external pull-up)
  • Output short to V_CC detection
  • Sense enable/disable
• Protections
  • Undervoltage shutdown
  • Overvoltage clamp
  • 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 V_CC
    
  • Reverse battery through self turn-on
  • Electrostatic discharge protection