FAN73894: 3-Phase Half-Bridge Gate-Drive IC
Description: The FAN73894 is a monolithic three-phase half-brid...
The FAN73894 is a monolithic three-phase half-bridge gate-drive IC designed for high-voltage, high-speed, driving MOSFETs and IGBTs operating up to +600 V.
Fairchild’s high-voltage process and common-mode noise-canceling technique provide stable operation of high-side drivers under high-dVs/dt noise circumstances.
An advanced level-shift circuit allows high-side gate driver operation up to VS = -9.8 V (typical) for VBS =15 V.
The protection functions include under-voltage lockout, inter-lock function and inverter over-current trip with an automatic fault-clear function. Over-current protection that terminates all six outputs can be derived from an external current-sense resistor. An open-drain fault signal is provided to indicate that an over-current or under-voltage shutdown has occurred. The UVLO circuits prevent malfunction when VDD and VBS are lower than the threshold voltage.
Output drivers typically source and sink 350 mA and 650 mA, respectively; which is suitable for three-phase half-bridge applications in motor drive systems.
Floating Channel for Bootstrap Operation to +600 V
Typically 350 mA/650 mA Sourcing/Sinking Current-Driving Capability for All Channels
Extended Allowable Negative VS Swing to -9.8 V for Signal Propagation at VDD=VBS=15 V
Outputs Out of Phase with Input Signals
Over-Current Shutdown Turns Off All Six Drivers
Matched Propagation Delay for All Channels
3.3 V and 5.0 V Input Logic Compatible
Adjustable Fault-Clear Timing
Signal Interlocking of Every Phase to Prevent Cross-Conduction
Common-Mode dVs/dt Noise-Canceling Circuit
Built-in Advanced Input Filter
Built-in Soft Turn-Off Function
Built-in Under-Voltage Lockout (UVLO) Functions for All Channels
AC-DC Merchant Power Supply
Motion Control - Home Appliance
Motion Control - Home Appliance/Industrial Motor
Motion Control - Industrial Motor
Technical Documentation & Design Resources
Availability and Samples
Compliance: Pb-free Halide free
Description: 3-Phase Half-Bridge Gate-Drive IC
Package Type: SOIC-28W
Package Case Outline: 751BM
Container Type: REEL
Container Qty: 1000
Number of Drivers:
Vin Max (V):
VCC Max (V):
Drive Source/Sink Typ (mA):
350 / 650
Rise Time (ns):
Fall Time (ns):
tp Max (ns):