CGD15SG00D2                           Introduction

The purpose of this application note is to demonstrate the design of an isolated gate driver (Cree Part Number: CGD15SG00D2) tailored for Cree’s 3rd Generation (C3MTM) Silicon Carbide (SiC) Metal Oxide Semiconductor Field-Effect Transistor (MOSFET).

CGD15SG00D2                           Features

· Creepage enhancing groove between the logic side and the power side of the printed circuit

board (PCB)

· 2W isolated power supply that enables the operation of larger MOSFETs at higher frequencies

· 5000VAC isolation rated optocoupler

· Separate gate turn-on and gate turn-off resistors with a dedicated diode which allow user

friendly optimization of both turn-on and turn-off signals

· Common mode inductor on logic power input for enhanced electro-magnetic interference

(EMI) immunity

· 9mm creepage enhancing slot between primary and secondary circuits

CGD15SG00D2                           APPLICATIONS

Portable electronics level adjustment

LCD panel brightness and contrast controls

Programmable filters, delays, and time constants

Programmable power supplies