Design Win

Demonstration board for STGAP2SICSANC isolated single gate driver

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Product overview


The EVSTGAP2SICSANC is a half bridge evaluation board designed to evaluate the STGAP2SICSANC 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 mid and high power inverter applications such as motor drivers in industrial applications equipped with SiC MOSFET power switch.

The device has a single output pin and Miller CLAMP function that prevents gate spikes during fast commutations in half-bridge topologies. This configuration provides high flexibility and bill of material reduction for external components.

The device integrates protection functions: UVLO with optimized value for SiC MOSFETs and thermal shut down are included to easily design high reliability systems. Dual input pins allow the selection of signal polarity control and implementation of HW interlocking protection to avoid cross-conduction in case of controller 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 EVSTGAP2SICSANC board allows evaluating all the STGAP2SICSANC 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 or HU3PAK 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.

  • All features

    • Board
      • Half bridge configuration, high voltage rail up to 520 V
      • SCT055H65G3AG:  650 V, 58 mΩ typ., 30 A 3rd generation SiC MOSFET
      • 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 V
      • Easy jumper selection of driving voltage configuration: +17/0 V; +17/-3 V; +19/0 V; +19/-3 V
    • Device
      • AEC-Q100 qualified
      • High voltage rail up to 1700 V
      • Driver current capability: 4 A source/sink @ 25 °C
      • 4 A Miller CLAMP
      • Overall input-output propagation delay: 45 ns
      • UVLO function
      • Gate driving voltage up to 26 V
      • 3.3 V, 5 V TTL/CMOS inputs with hysteresis
      • Temperature shut down protection
      • UL 1577 recognized

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
CARD Industrial Ecopack1 -




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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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