Latch-up free 600 V SOI gate driver IC for medium power and high temperature applications

The design, functionality and measurements of fully integrated 600 V SOI gate drive ICs are presented. The two-, six- and seven-channel HVIC target different motor drive systems for low power and medium power applications. Dielectric device isolation and the detailed circuit design ensure operation up to a temperature of 200/spl deg/C. Robust signal processing has been given highest attention at all design stages. A dedicated signal reconstruction topology is presented to provide maximum immunity against parasitic coupling from the power plane. The measurements confirming the safe operation of the IC's are given.