
Fairchild Semiconductor
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.
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