Design Win

Triple Half-Bridge High-Voltage Gate Driver for Motor Control

Solution Description

The STDRIVE601 is a high voltage device manufactured with BCD6s offline technology. It is a single-chip with three half-bridge gate drivers for N-channel power MOSFETs or IGBTs suitable for 3-phase applications.

This device embeds everything what is needed to build a complete power stage, including:

  • Three half-bridge gate drivers
  • Smart protections
  • Signal conditioning

All the STDRIVE601 outputs can sink and source 350 mA and 200 mA respectively. Prevention from cross conduction is ensured by interlocking and deadtime function.


Key target applications:

  • Home and Industrial refrigerators compressors
  • Industrial drives, pumps, fans
  • Air conditioning compressors & fans
  • Corded power tools, garden tools
  • Home appliances

The device has dedicated input pins for each output and a shutdown pin. The logic inputs are CMOS/TTL compatible down to 3.3 V for easy interfacing with control devices. Matched delays between low-side and high-side sections guarantee no cycle distortion and allow high frequency operation.

ST offer includes a full ecosystem with software libraries, tools, GUI as well as high voltage power MOSFETs or IGBTs.

  • Key Product Benefits

    • Compact solution for overall BOM reduction
    •  Enhanced immunity to EMI
    • Variety of protection (UVLO, smart shutdown and deadtime functions)
    • Easy to run
  • All Features

    Three-phase gate driver provide:

    • High voltage rail up to 600 V
    • 200/350 mA source/sink current
    • dV/dt transient immunity ±50 V/ns
    • Gate driving voltage range from 9V to 20V
    • Overall input-output propagation delay: 85 ns
    • Matched propagation delay for all channels

    Smart protections offer:

    • Interlocking and deadtime function
    • UVLO function on low-side and high-sides
    • Comparator for fast overcurrent protection

    Signal conditioning circuits:

    • Integrated bootstrap diodes
    • Overcurrent comparator

    ST offers the

    EVALSTDRIVE601 is compatible with the STM32 Motor Control Software Development Kit (MCSDK).