HV-D3 (62 mm) Gate Driver Evaluation Board

Description

The HVD3GD evaluation board is a dedicated two-board gate-drive solution for the 3.3 kV, 7 mΩ MSCSM330AM07CD3NG mSiC™ half-bridge module in the 62 mm D3 package. A cantilevered mechanical footprint mounts the board set directly over the module gate and source terminals for drop-in evaluation. Control and status signals cross the primary isolation barrier over a fiber-optic link, giving 6 kVworking isolation, low coupling capacitance, and high CMTI in electrically noisy medium-voltage environments. A dedicated Power Board generates independently isolated bias for the high-side and low-side channels through separate isolation transformers, supporting the gate-charge demands of large 3.3 kV modules at switching frequencies up to 50 kHz. Configurable gate-drive rails and hardware-based half-bridge protection including DESAT with soft shutdown, shoot-through interlock, deadtime generation, auxiliary and gate-drive UVLO, and per-channel fault flags with latch/reset all implemented on-board rather than in firmware.

Electrical Characteristics

• Input Supply Voltage (V_IN): 15 V
• Default Output Voltage (V_GS): +20 V / –5 V
• Per Channel Coupling/Isolation Capacitance (C_ISO): < 8 pF

Maximum Parameters

• Input Supply Voltage (V_IN): 28 V
• Output Peak Current (I_PK): ±9 A
• Output Power per Channel (P_DRIVE): 3 W
• Maximum Switching Frequency (F_MAX): 50 kHz
• Primary-to-Secondary Creepage: 28 mm (min.)
• Primary-to-Secondary Clearance: 24 mm (min.)
• Ambient Operating Temperature (T_A): -25 to 70 °C

Applications

• Rail and traction inverters and auxiliary converters
• Medium-voltage grid-tied and utility-scale converters
• High-power industrial motor drives
• Battery energy storage systems (BESS)
• MVDC distribution and solid-state transformers (SST)
• Utility-scale solar and wind power conversion
• Induction welding, cutting, and heating
• DC-DC converters and UPS