onsemi NCV7546 FLEXMOS™ Half-Bridge MOSFET Pre-Driver

onsemi NCV7546 FLEXMOS™ Half-Bridge MOSFET Pre-Driver is a programmable, six-channel half-bridge MOSFET pre-driver optimized for driving logic-level NMOS FETs. The NCV7546 is controllable by a combination of serial SPI and CMOS-compatible parallel inputs. An internal power-on reset provides controlled power-up. A reset input allows external re-initialization, and a failsafe input enables the device to be safely disabled in the event of a system upset. Each channel independently monitors its external MOSFETs’ drain-source voltages for fault conditions. Overload detection thresholds are SPI-selectable, and the NCV7546 allows different detection thresholds for each channel.


The onsemi NCV7546 FLEXMOS Half-Bridge MOSFET Pre-Driver is offered in a QFNW-50 package with wettable flanks for automatic optical inspection (AOI).


  • AEC-Q100 Qualified and PPAP capable
  • Supports functional safety compliance
  • Six half-bridge pre-drivers for external logic-level NMOS FETs
  • Integrated charge pump
    • High-side gate drive
    • Switched reverse battery protection
  • 5V CMOS compatible I/O
    • 16-bit SPI interface for control and diagnosis
    • Reset and Failsafe inputs
    • Four PWM control inputs
  • Programmable
    • Slew rate control
    • Overload protection thresholds
  • Low quiescent current
  • Detection of unconnected loads
  • External MOSFET and load protection
  • Scalable to load by choice of external MOSFET
  • 6.0mm x 6.0mm QFNW-40 package with wettable flanks
  • Pb-free packaging


  • Brushed DC motor control for automotive applications
  • Seat motor actuators
  • Door lock actuators
  • Trunk lift actuators
  • Sunroof actuators
  • Window lift actuators


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