EVLSTGAP3SXS-H

EVLSTGAP3SXS-H is a half-bridge evaluation board for STGAP3SXS SiC MOSFETs isolated gate driver with protections. The STGAP3SXS is characterized by 10A current capability, rail-to-rail outputs and optimized UVLO and DESAT protection thresholds for SiC MOSFETS, which makes the device optimal for high-power motor drivers in industrial applications. The gate driver has a single output pin and a driver line for an external Miller CLAMP N-channel MOSFET, which optimizes positive and negative gate spikes' suppression during fast commutations in half-bridge topologies. The board is supplied by the 5V VAUX connection, which fed the isolated DC-DC converters for the low-side and high-side driving sections. The gate drivers can be directly supplied by VAUX if a 5V MCU is used, or by the onboard linear regulator if a 3.3V MCU is used. The PWM and Reset inputs can be easily controlled through dedicated connectors while diagnostic outputs are connected to an onboard LED.

• High-voltage rail up to 520V (limited by the MOSFET’s and capacitor’s rating)
• SCTWA70N120G2V-4 SiC MOSFETs: 1200V, 30mohm, 91A
• Compatible with 5V and 3.3V MCUs
• VDD logic supplied by onboard-generated 3.3V or VAUX = 5V
• On-brd DC-DC converter to supply high-side and low-side gate drivers, by 5V VAUX 5.2kV isolation
• Easy jumper selection of driving voltage configuration:+19/0V; +19/-4.7V; +17/0V; +17/-4.7V
• Fault LED indicators
• Maximum working voltage across isolation: 1200V