Gate Drive for SiC MOSFET Module

In recent years, SiC MOSFET modules have increasingly replaced conventional Si power devices in power converters, such as industrial motor drives and railway traction inverters, to reduce size and power loss.
This gate driver is designed to drive such modules safely and includes multiple protection functions. It uses the pre-driver coupler TLP5231 together with external buffer MOSFETs, enabling large gate-drive current while providing isolation for high-current/high-voltage SiC MOSFET modules. The design offers a two-channel configuration (high-side and low-side) on a compact 62 mm × 100 mm board that can be integrated into our Dual MOSFET modules.
We also provide key design considerations, usage and adjustment guidance for each circuit block, along with circuit diagrams and PCB pattern information to support your design work. Note: new designs using 2SC6026MFV are Not Recommended for New Design (NRND) as of April 26.

Board Appearance
Board Appearance
TLP5231 TLP5231 TPC8132 TPC8132 SSM6K804R SSM6K804R SSM6K804R SSM6K804R TCR1HF50B TCR1HF50B SSM3K15AFS SSM3K15AFS 2SC6026MFV 2SC6026MFV TLP5231 TLP5231 TPC8132 TPC8132 SSM6K804R SSM6K804R SSM6K804R SSM6K804R TCR1HF50B TCR1HF50B SSM3K15AFS SSM3K15AFS 2SC6026MFV 2SC6026MFV

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Features

  • Developed an isolated gate driver equipped with various protection functions for high-current / high-voltage SiC MOSFET modules
  • Parameters are set assuming combination with our SiC MOSFET modules (MG400V2YMS3, MG600Q2YMS3, MG250YD2YMS3)
  • Realized in the same size as our SiC MOSFET modules

Specifications

Power supply voltage for control DC24V
Number of driving channels 2 ch：Low-side, High-side
Gate control signal input 5V CMOS
Gate drive output +20V (Typ.) / -6.7V (Typ.)

Design Documents

Materials for designers, such as an overview of circuit operation and explanations of design considerations. Please click on each tab to view the contents.

Design Data

Provides circuit data that can be loaded into EDA tools, PCB layout data, and data used in PCB manufacturing. Available in formats from multiple tool vendors. You can freely edit it with your preferred tool.

Used Toshiba Items

Part Number Device Category Application Area – Qty Description
Photocoupler (photo-IC output) Pre driver・2 Photocoupler (photo-IC output), Power device pre-driver, IOP=+/-2.5 A, 5000 Vrms, SO16L
Power MOSFET (P-ch single) Turn on buffer・2 P-ch MOSFET, -40 V, 0.025 Ω@10V, SOP-8, U-MOSⅥ
Small Low ON resistance MOSFETs Turn off buffer・4 N-ch, MOSFET, 40V, 12A, 18mΩ@4.5V, TSOP6F
Low Dropout (LDO) Linear Voltage Regulator Generates control power supply voltage・4 High voltage, Low quiescent current, Fast load transient CMOS Linear Regulator
Small-signal MOSFET Input signal drive・２ N-ch MOSFET, 30 V, 0.1 A, 3.6 Ω@4V, SOT-416(SSM)
Transistor for low frequency small-signal amplification Fault detection signal output・2 NPN Bipolar Transistor, 50 V, 0.15 A, SOT-723(VESM)

Related Documents

We provide materials useful for designing and considering similar circuits, such as application notes for installed products. Please click on each tab to view the contents.

Applications

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