FAN73932: 625V, 3.3/5V input logic compatible, 2.5/2.5A sink/source current, Half Bridge Gate-Drive with fixed Deadtime and SD protection

The FAN73932 is a half-bridge, gate-drive IC with shutdown and dead-time functions which can drive highspeed MOSFETs and IGBTs that operate up to +600V. It has a buffered output stage with all NMOS transistors designed for high pulse current driving capability and minimum cross-conduction. Fairchild’s high-voltage process and common-mode noise canceling techniques provide stable operation of the high-side driver under high dv/dt noise circumstances. An advanced level-shift circuit offers high-side gate driver operation up to VS=-9.8V (typical) for VBS=15V. The UVLO circuit prevents malfunction when VDD and VBS are lower than the specified threshold voltage. The high-current and low-output voltage drop feature makes this device suitable for all kinds of half- and full-bridge inverters, like motor drive inverter, switching mode power supply, induction heating, and high-power DC-DC converter applications.

Features

• Floating Channel for Bootstrap Operation to +600V
• Typically 2.5A/2.5A Sourcing/Sinking Current Driving Capability
• Extended Allowable Negative V_S Swing to -9.8V for Signal Propagation at V_BS=15V
• High-Side Output in Phase of IN Input Signal
• 3.3V and 5V Input Logic Compatible
• Matched Propagation Delay for Both Channels
• Built-in Shutdown Function
• Built-in UVLO Functions for Both Channels
• Built-in Common-Mode dv/dt Noise Canceling Circuit
• Internal 400ns Minimum Dead-Time

Application Notes