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Demonstration board for STGAP2SICSN isolated 4 A single gate driver

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Parameter NameParameter Value
Packing TypeNot Applicable
RoHs compliantEcopack1
Package NameCARD

The EVSTGAP2SICSN is a half-bridge evaluation board designed to evaluate the STGAP2SICSN isolated single gate driver.

The gate driver is characterized by 4 A current capability and rail-to-rail outputs, making the device suitable also for high power inverter applications such as motor drivers in industrial applications equipped with SiC power switch.

The separated source and sink outputs allow to independently optimize turn-on and turn-off by using dedicated gate resistors.

The device integrates protection functions: UVLO and thermal shutdown are included to easily design high reliability systems. Dual input pins allow choosing the control signal polarity and implementing HW interlocking protection to avoid cross-conduction in case of controller's malfunction.

The device allows implementing negative gate driving, and the on-board isolated DC-DC converters allow working with optimized driving voltage for SiC.

The EVSTGAP2SICSN board allows evaluating all the STGAP2SICSN features while driving a half-bridge power stage with voltage rating up to 520 V. It is possible to increase bus voltage by replacing the power switches with appropriate devices in H2PACK-7L or H2PACK-2L package and the C29 capacitance if needed.

The board components are easy to access and modify to make driver performance evaluation easier under different application conditions and fine adjustment of final application components.

Key features
  • Board
    • Half
      bridge configuration, high voltage rail up to 520
    • SCTH35N65G2V-7: 650 V, 55 mΩ 2nd generation SiC
    • Negative
      gate driving
    • On-board
      isolated DC-DC converters to supply high-side and
      low-side gate drivers, fed by VAUX = 5 V, with 5.2
      kV maximum isolation
    • VDD logic supplied by on-board generated 3.3 V or VAUX = 5
    • Easy
      jumper selection of driving voltage configuration:
      +17/0 V; +17/-3 V; +19/0 V; +19/-3 V
  • Device
    • 1700 V functional isolation
    • Driver current capability: 4 A source/sink @
      25 °C
    • Separate sink and source output for easy gate driving
    • Short propagation delay: 75 ns
    • UVLO function
    • Gate driving voltage up to 26 V
    • 3.3 V, 5 V TTL/CMOS inputs with hysteresis
    • Temperature shutdown protection
    • Standby function