IR2112

Description

The IR2112 is an independent high and low-side referenced output channel high voltage, high-speed power MOSFET and IGBT driver. Ruggedized monolithic construction is made possible by proprietary HVIC and latches immune CMOS technology. Down to 3.3V logic, logic inputs are compatible with typical CMOS or LSTTL outputs.

A high pulse current buffer stage with minimal driver cross-conduction is a feature of the output drivers. To make use in high-frequency applications simpler, propagation delays are matched. An N-channel power MOSFET or IGBT that operates up to 600 volts can be driven via the floating channel in a high-side configuration.

Features

• CMOS Schmitt-triggered inputs with pull-down

• Cycle by cycle edge-triggered shutdown logic

• Matched propagation delay for both channels

• Outputs in phase with inputs

• Gate drive supply range from 10 to 20V

• Undervoltage lockout for both channels

• 3.3V logic compatible Separate logic supply range from 3.3V to 20V Logic and power ground ±5V offset

• Floating channel designed for bootstrap operation

• Fully operational to +600V

• Tolerant to negative transient voltage dV/dt immune

Applications

• SMPS (Switched Mode Power Supply) to supply power to Sensitive medical equipment and computers

• UPS (Uninterruptible Power Supply) system

• AC and DC motor drives offering speed control

• Chopper and inverters

• Solar inverters