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Half Bridge Gate Driver
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General Description
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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 VBS are lower than the specified threshold voltage. Output drivers typically source/sink 250mA/500mA, respectively, which is suitable for half-bridge and full-bridge applications in motor drive systems.
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Features
- Floating Channel for Bootstrap Operation to +600V
- Typically 250mA/500mA Sourcing/Sinking Current Driving Capability for Both Channels
- Extended Allowable Negative VS Swing 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
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Applications
- Motor Inverter Driver
- Normal Half-Bridge and Full-Bridge Driver
- Switching Mode Power Supply
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