VNF1248FTR [STMicroelectronics]

The device is an advanced controller for a Power MOSFET in high-side configuration, designed for the implementation of an intelligent high-side switch for 12 V, 24 V, and 48 V automotive applications. The control IC is interfaced to a host microcontroller through a 3.3 V and 5 V CMOS-compatible SPI interface and provides protection and diagnostics to the system.

• AEC-Q100 qualified
• General
  • High-side
    switch control IC with e-fuse protection for automotive
    12 V, 24 V and 48 V applications
  • 32-bit ST-SPI interface compatible with 3.3 V and 5 V
    CMOS level
  • 2-stage charge pump
  • Gate drive
    for an external MOSFET in high-side configuration
  • High precision
    uni-directional current sense through an external high
    side shunt resistor
  • Input for a NTC resistor to monitor the external MOSFET
    temperature
  • Very low standby current
  • Device configuration lock out by a dedicated digital
    input pin
  • Integrated ADC for TJ, VNTC, VOUT, VSENSE
    conversion
    
    
  • Fast ADC for VDS, VSENSE conversion
  • CCM: capacitive
    charging mode
  • Few times programmable
    non-volatile memory (FTP NVM) embedded for customer sector
    program/erase/read
  • Direct input pin for hardware control of external MOSFET
    gate pin
  • Package QFN32L 5x5
    package with wettable flanks
• Protections
  • Battery undervoltage shut-down
  • External MOSFET desaturation shutdown configurable via SPI
  • Hard short circuit latch-off configurable via SPI
  • Current vs time latch-off configurable via SPI (fuse-emulation)
  • Device overtemperature shutdown
  • External MOSFET overtemperature shutdown
  • Reverse battery
    
  • Loss of GND