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IR4311 - Integrated analog input Class D audio amplifier

Download the IR4311 datasheet PDF. This datasheet also covers the IR4301 variant, as both devices belong to the same integrated analog input class d audio amplifier family and are provided as variant models within a single manufacturer datasheet.

General Description

The IR43x1 integrates PWM controller and digital audio MOSFETs forming a high performance Class D audio amplifier.

As a result of fully optimized MOSFETs co-packed with a dedicated controller IC, the IR43X1operates without mechanical heatsink attached in a typical music playback usage.

Key Features

  • Integrated analog input Class D audio amplifier in a small 5 x 6 mm PQFN package.
  • High peak music power output.
  • No mechanical heatsink required.
  • Split or single power supply.
  • Differential or single-ended input.
  • Over-current, over-temperature and under voltage protections with self-reset function.
  • Start and stop click noise reduction.
  • High noise immunity.
  • RoHS compliant Typical.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (IR4301-InternationalRectifier.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by International Rectifier (now Infineon)

Part Number Description
IR4312 2-Channel Integrated Analog Input Class D Audio Amplifier
IR4301 Integrated analog input Class D audio amplifier
IR4302 2-Channel Integrated Analog Input Class D Audio Amplifier
IR4321 Integrated analog input Class D audio amplifier
IR4322 2-Channel Integrated Analog Input Class D Audio Amplifier

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
IR43x1 Features  Integrated analog input Class D audio amplifier in a small 5 x 6 mm PQFN package  High peak music power output  No mechanical heatsink required  Split or single power supply  Differential or single-ended input  Over-current, over-temperature and under voltage protections with self-reset function  Start and stop click noise reduction  High noise immunity  RoHS compliant Typical Applications  Home theatre systems  Docking station audio systems  PC audio systems  Musical instruments  Karaoke amplifiers  Game consoles  Powered speaker systems  General purpose audio power amplifiers Product Summary Topology *IR4301 Output power (Typical, THD+N=10%) *IR4321 Output power (Typical, THD+N=10%) *IR4311 Output power (Typical, THD+N=10%) *Residual noise (AES-17, IHF