FAN73912: High-Current, Half-Bridge, Gate-Driver IC

The FAN73912 is a monolithic half bridge gate-drive IC designed for high-voltage and high-speed driving for MOSFETs and IGBTs that operate up to +1200 V.

The advanced input filter of HIN provides protection against short-pulsed input signals caused by noise.

An advanced level-shift circuit offers high-side gate driver operation up to VS=-9.8 V (typical) for VBS=15 V. The UVLO circuit prevents malfunction when VCC and VBS are lower than the specified threshold voltage.

Output drivers typically source and sink 2 A and 3 A, respectively.

Features

• Floating Channel for Bootstrap Operation to +1200 V
• Typically 2 A/ 3 A Sourcing/Sinking Current Driving Capability for Both Channels
• Gate Driver Supply (VCC) Range from 12 V to 20 V
• Separate Logic Supply (VDD) Range from 3 V to 20 V
• Extended Allowable Negative VS Swing to -9.8 V for Signal Propagation at VCC=VBS=15 V
• Built-in Cycle-by-Cycle Edge-Triggered Shutdown Logic
• Built-in Shoot-Through Protection Logic
• Common-Mode dv/dt Noise Canceling Circuit
• UVLO Functions for Both Channels
• Built-in Advanced Input Filter
• Matched Propagation Delay Below 50 ns
• Outputs in-Phase with Input Signal
• Logic and Power Ground +/- 10 V Offset

Application Notes