IRS20955STRPBF electronic devices and integrated circuits PROTECTED DIGITAL AUDIO DRIVER

PROTECTED DIGITAL AUDIO DRIVER

Features

· Floating PWM input enables easy half-bridge implementation

· Programmable bidirectional over-current protection

  with self-reset function

· Programmable preset deadtime for improved THD      performances

· High noise immunity · ±100 V ratings deliver

  up to 500 W in output power

· 3.3 V/5 V logic compatible input

· Operates up to 800 kHz

· RoHS compliant

Description

The IRS20955 is a high voltage, high speed MOSFET driver with a floating PWM input designed for Class D audio amplifier applications.

Bi-directional current sensing detects over-current conditions during positive and negative load currents without any external shunt resistors. A built-in protection control block provides a secure protection sequence against overcurrent conditions and a programmable reset timer.

The internal deadtime generation block enables accurate gate switching and optimum deadtime setting for better audio performance, such as lower THD and lower audio noise floor.

Typical Connection