FAN7384: 625V, 3.3/5V input logic compatible, 0.5/0.25A sink/source current, Half Bridge Gate-Drive with fixed Deadtime, OCP/Shutdown protection

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 fullbridge applications in motor drive systems.

Features

• Floating Channel for Bootstrap Operation to +600V
• Typically 250mA/500mA Sourcing/Sinking Current Driving Capability for Both Channels
• Extended Allowable Negative V_S Swing to -9.8V for Signal Propagation at V_DD= V_BS =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

Application Notes