DGD2136 3-Phase Half-Bridge Gate Driver

By Diodes Incorporated 50

DGD2136 3-Phase Half-Bridge Gate Driver

Diodes' DGD2136 is a 3-phase gate driver IC designed for driving three half-bridges configured from N-channel MOSFETs and IGBTs. With its floating high-side drivers, bootstrap operation allows the DGD2136 to switch up to 600 V while standard logic level inputs down to 2.4 V ensure an easy control interface.  

The increased use of BLDC and PMSM motors reflects industry directives to improve the efficiency of electrical motors and achieve the goal of zero maintenance in order to minimize the total cost of ownership. The DGD2136 assists in this as it is designed for >100 W 3-phase motor drive applications such as those commonly found in household appliances, power tools, and industrial motors.

Encompassing self-protection features such as: dead-time and matched delays to evade shoot- through issues; Schmitt triggered inputs to avoid false triggering; gate drive tolerance to negative transients caused during high dv/dt switching; and undervoltage lockout (UVLO) protection on the VCC supply to avoid malfunction under low supply voltage.

Features Applications
  • Overcurrent protection
    • Turns off the output drive if overcurrent is sensed to protect the MOSFET/IGBTs
  • Safeguarding features
    • Increased reliability and reduced EMI by preventing shoot through as it operates with Schmitt trigger inputs, shoot-through protection, matched propagation, UVLO
  • Logic input level >2.4 V
    • PWM control directly from 3.3 V MCU while the output steps up to the VCC supply (10 V to 20 V) to minimize conduction losses in the switch
  • Fault signal output and RC input pin
    • Enables monitoring of the driver stage and an adjustable reset time
  • Motor inverter driver
    • >100 W 3-phase PMSM/BLDC motors:
      • Household appliances (white goods) including washing machines, refrigerators, and sewing machines
      • Air conditioners and fans
      • Industrial motor inverters including robotics
      • Garden tools, power tools, and miter saws

New Products:

DGD2136S28-13

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