Description

The FAN7388 is a monolithic three half-bridge gate-drive IC designed for high-voltage, high-speed driving MOS FETs and IGBTs operating up to +600V.

Fairchild’s high-voltage process and common-mode noise canceling technique provide stable operation of high-side drivers under high-dv/dt noise circumstances.

An advanced level-shift circuit allows high-side gate driver operation up to VS = -9.8V (typical) for VBS =15V.

The UVLO circuits prevent malfunction when VDD and VBS are lower than the specified threshold voltage.

Output drivers typically source/sink 350mA/650mA, respectively, which is suitable for three-phase half-bridge applications in motor drive systems.

Features

■ Floating Channel for Bootstrap Operation to +600V

■ Typically 350mA/650mA Sourcing/Sinking Current Driving Capability for All Channels

■ 3 Half-Bridge Gate Driver

■ Extended Allowable Negative VS Swing to -9.8V for Signal Propagation at VBS=15V

■ Matched Propagation Delay Time Maximum: 50ns

■ 3.3V and 5V Input Logic Compatible

■ Built-in Shoot-Through Prevention Circuit for All Channels with 270ns Typical Dead Time

■ Built-in Common Mode dv/dt Noise Canceling Circuit

■ Built-in UVLO Functions for All Channels

Applications

■ 3-Phase Motor Inverter Driver