IR2181 Description

The IR2181 is a high voltage high-speed power MOSFET and IGBT driver with independent high and low-side referenced output channels. Proprietary HVIC and latch immune CMOS technologies enable ruggedized monolithic construction. The logic input is compatible with standard CMOS or LSTTL output, down to 3.3V logic. The output driver IR2181 features a high pulse current buffer stage designed for minimum driver cross-conduction. The floating channel can be used to drive an N-channel power MOSFET or IGBT in the high-side configuration which operates up to 600V.

IR2181 Features

• Floating channel designed for bootstrap operation

• Tolerant to negative transient voltage (dV/dt immune)

• Under-voltage lockout for both channels

• Matched propagation delay for both channels

• Logic and power ground ±5V offset

• Lower di/dt gate driver for better noise immunity

• Output source/sink current capability 1.4/1.8A

IR2181 Applications

• Robotics

• Home appliances

• Motor control and drives

• Power tools

• Power Supplies

• Home and building automation

• Industrial heating and welding

• Uninterruptible power supply (UPS)