DESCRIPTION

· The IR2172 is a monolithic current sensing IC designed for motor drive applications.

· It senses motor phase current via an external shunt resistor, converts it from analog to digital, and transfers the signal to the low side.

· Utilizes proprietary high voltage isolation technology for high bandwidth signal processing.

· Outputs discrete PWM, eliminating the need for an A/D input interface.

· Features an open-drain output compatible with interfaces from 3.3V to 15V.

FEATURES

· Floating channel capable of handling up to +600V.

· Monolithic integration ensures compact design.

· Provides linear current feedback through a shunt resistor.

· Direct digital PWM output for straightforward interfacing.

· Low IQBS supports efficient boot strap power supply.

· Independent fast overcurrent trip signal for enhanced safety.

· High common mode noise immunity for reliable operation.

· Input overvoltage protection safeguards against IGBT short circuits.

APPLICATIONS

· Ideal for motor drive applications requiring precise current sensing.

· Suitable for systems needing high voltage isolation and robust signal processing.

· Effective in environments demanding high common mode noise immunity.

· Applicable in scenarios where IGBT short circuit protection is crucial.