描述 Description

The FAN7384 is a monolithic half-bridge gate-drive IC designed for high voltage, high speed driving MOSFETs 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 VBSare lower than the specified threshold voltage. Output drivers typically source/sink 250mA/500mA,

respectively, which is suitable for half-bridge and full bridge applications inmotor drive systems.

特性 Features

Floating Channel for Bootstrap Operation to +600V

Typically 250mA/500mA Sourcing/Sinking Current Driving Capability for Both Channels

Extended Allowable Negative VSSwing to -9.8V for Signal Propagation at VDD=VBS=15V

Matched Propagation Delay Below 50ns

Output In-Phase with Input Signal

3.3V and 5V Input Logic Compatible

Built-in Shoot-Through Prevention Logic

Built-in Common Mode dv/dt Noise Canceling Circuit

Built-in UVLO Functions for Both Channels

Built-in Cycle-by-Cycle Shutdown Function

Built-in Soft-Off Function

Built-in Bi-Directional Fault Function

Built-in Short-Circuit Protection Function

Applications

Motor Inverter Driver

Normal Half-Bridge and Full-Bridge Driver

Switching Mode Power Supply