New Product Introduction

ON Semiconductor NCP51705

NCP51705 - SiC MOSFET Driver, Low-Side, Single 6A High-Speed

ON Semiconductor NCP51705 chip image

The NCP51705 driver is designed to primarily drive SiC MOSFET transistors. To achieve the lowest possible conduction losses, the driver is capable to deliver the maximum allowable gate voltage to the SiC MOSFET device. By providing high peak current during turn−on and turn−off, switching losses are also minimized.

For improved reliability, dV/dt immunity and even faster turn−off, the NCP51705 can utilize its on−board charge pump to generate a user selectable negative voltage rail. For isolated applications, the NCP51705 also provides an externally accessible 5 V rail to power the secondary side of digital or high speed opto isolators.



  • High Peak Output Current with Split Output Stages
  • Extended Positive Voltage Rating up to 28 V Max
  • User−adjustable Built−in Negative Charge Pump (-3.3 V to -8 V)
  • Accessible 5 V Reference / Bias Rail
  • Adjustable Under−Voltage Lockout
  • Fast Desaturation Function
  • QFN24 Package 4 x 4 mm


  • Allow independent Turn−ON/Turn−OFF Adjustment
  • Efficient SiC MOSFET Operation during the Conduction Period
  • Fast Turn−off and Robust dV/dt Immunity
  • Minimize complexity of bias supply in isolated gate drive applications
  • Sufficient VGS amplitude to match SiC best performance
  • Self protection of the design
  • Small & Low Parasitic Inductance package


  • High Perfomance Inverters
  • High Power Motor Drivers
  • Totem Pole PFC

End products

  • Industrial & Motor Drives
  • UPS & Solar Inverters
  • High Power DC Chargers


Part electrical specifications


Product Compliance Status Type Number
of drives
Vin Max (V) VCC Max (V) Drive
Typ (mA)
Rise Time (ns) Fall Time (ns) tp Max (ns) Package type
NCP51705MNTXG Pb-free/
Halide free
Active SiC MOSFET 1 N/A 28 6000 / 6000 8 8 50 WQFN-24


Evaluation/development tool information

NCP51705SMDGEVB: The NCP51705 mini board driver is designed to primarily drive SiC MOSFET transistors. The board can be implemented to current or new designs or as a standalone test platform.


Request sample

Please register here and choose the sample(s) you would like to receive.

  • SiC Diodes: FFSB0665A
  • SiC MOSFETs: NTHL080N120SC1
  • SiC MOSFET Driver: NCP51705MNTXG



ON Semiconductor

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