Overview
The Isolated Bias Generator for SiC Gate Drivers Reference Design is based on MCP14T0517B which operates at 5V input voltage. The board provides galvanic isolated and regulated bias voltage of +20V with respect to 0V and -5V with respect to 0V at up to 100 mA of current. The board features configurable ENABLE pin for external control and synchronization. The MCP14T0517A/B device is a push-pull transformer driver designed for small form factor isolated power supply applications with a switching frequency of 150 kHz for MCP14T0517A and 450 kHz for MCP14T0517B. MCP14T0517A/B allows synchronization with multiple devices and operation at higher frequencies by applying an external clock of up to 1000 kHz.
*Design files are available; please submit a request for design files on the reference design page.
The Isolated Bias Generator for SiC Gate Drivers Reference Design has the following features:
• Input Voltage (VIN): 5V
• Output Voltages: +20V with respect to 0V and -5V with respect to 0V
• Output Current: up to 100 mA (for the output voltage of +25V with respect to -5V)
• Switching Frequency: 450 kHz
• Overtemperature and Overcurrent Protections
• Ro-HS Compliant
