Motion Control

3-Phase Inverter Demo Board can use IGBTs or Power MOSFETs

The EVALSTDRIVE601 demonstration board from STMicroelectronics is a complete 3-phase inverter which allows evaluating all of the STDRIVE601 features. The power stage features STGD6M65DF2 IGBTs, but can be populated with any IGBT or power MOSFET in DPAK or powerFLAT 8×8 HV package. The board is designed to support a three shunt or a single shunt current sensing topology.

This demo board is designed to drive three-phase motor in applications such as fans, pumps, refrigerator compressors, industrial inverters and consumer appliances. A strip connector allows an easy interfacing with MCU control.

The STDRIVE601 is a 600V gate driver 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.

The device integrates three bootstrap diodes and a smart shutdown feature able to detect very fast overcurrent condition, minimizing the propagation delay between the overcurrent event and the output switch-off.

Key Features of the EVALSTDRIVE601:
  • High voltage rail up to 600V
  • Driver supply input voltage range 9- to 20-V
  • STGD6M65DF2 IGBTs power stage featuring:
    • V(BR)CES = 650V
    • VCE(sat) = 1.55V @ IC = 6A
  • Dual footprint for IGBT/MOSFET package:
    • DPAK
    • PowerFlat 8×8
  • Selectable single or 3-shunt current sensing topology:
    • Sensored or sensorless BEMF detection
    • FOC or 6-Step algorithm
  • SmartShutdown overcurrent protection
  • Hall effect sensors connector
  • Bus voltage sensing
  • 450V bulk capacitor
  • Connector for interfacing with MCU
  • RoHS compliant
The STDRIVE601

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.

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

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

The STDRIVE601 embeds a comparator featuring advanced SmartSD function also integrated in the device, ensuring fast and effective protection against fault events like overcurrent, overtemperature, etc.

Dedicated UVLO protection on the low-sides and each of the high-side driving sections allow to prevent the power switches from operating in low efficiency or dangerous conditions.

The integrated bootstrap diodes as well as all of the integrated features of this IC make the application PCB design easier, more compact and simpler thus reducing the overall bill of material.

The device is available in SO-28 package.

STMicroelectronics NV
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