Infineon Technologies AG Discrete Class D Audio Amplifier ICs IRS20957SPBF

Protected Digital Audio Driver with Floating PWM input in a 16-Lead SOIC Narrow Package

The IRS20957S is a high voltage, high speed MOSFET driver with a floating PWM input designed for Class D audio amplifier applications. It features a bi-directional current sensing to detect 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 over-current conditions and a programmable reset timer. The internal dead-time generation block enables accurate gate switching and optimum dead-time setting for better audio performance, such as lower THD and lower audio noise floor.

Summary of Features

• Floating PWM input enables easy half bridge implementation
• Programmable bidirectional over-current protection with self-reset function
• Programmable preset dead-time 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

Potential Applications

• Home theatre systems
• Mini component stereo systems
• Powered speaker systems
• General purpose audio power amplifiers

Manufacturer: Infineon Technologies
Win Source Part Number: 1047730-IRS20957SPBF
Packaging: Tube/Rail
Type: Class D
Features: Short-Circuit Protection, Shutdown
Mounting: SMD (SMT)
Output Type: 1-Channel (Mono)
Family Name: IRS20957S
Categories: Integrated Circuits
Temperature Range - Operating: -40°C to 125°C (TA)
Case / Package: 16-SOIC
Dimension: 16-SOIC (0.154", 3.90mm Width)
Supply Voltage - Operating: 10 V to 15 V
Alternative Parts (Cross-Reference): IRS20957STRPBF;
Introduction Date: September 11, 2008
ECCN: EAR99
Country of Origin: Malaysia
Estimated EOL Date: Obsolete / End of life
Halogen Free: Compliant
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 65 pct.
Supply and Demand Status: Sufficient
Application Field: Used in Audio, Consumer Electronics

IC AMP CLASS D MONO 16SOIC Product overview: IRS20957SPBF from Infineon Technologies is an Audio Amplifier for embedded electronics, industrial equipment, maintenance repair, OEM production, and component sourcing. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include key electrical ratings, package details, and application requirements. Search-friendly keywords include Audio Amplifier, Audio Amplifiers, electronic component, datasheet, replacement part. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 742-IRS20957SPBF can be used for catalog matching and distributor lookup.

Amplifier IC 1-Channel (Mono) Class D 16-SOIC