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Audio Driver IC Delivers Superior Sound Quality in a Smaller Footprint

Thu, 11/18/2010 - 6:46am

IRS2053MInternational Rectifier today introduced the IRS2053M 200 V driver IC for use in Class D Audio applications including high performance home theater systems and car audio amplifiers requiring a compact footprint.

Based on a Class D audio amplifier topology, the IRS2053M integrates three channels of high-voltage, high performance half-bridge drivers with PWM modulators. The new device’s comprehensive set of protection features includes programmable bi-directional current sensing to protect high- and low-side MOSFETs from over-current conditions. Other key features include logic compatible input and floating PWM input.

“The IRS2053M offers a Class D Audio solution with excellent sound quality, delivering a smaller footprint and higher power compared to alternative solutions when combined with IR’s high efficiency power MOSFETs. Moreover, when co-designed with the single channel IRS2092(S) and four channel IRS2093M, the IRS2053M offers the flexibility to configure 2.1 channel, 6 channel and 6.1 channel applications,” said Jun Honda, director of audio systems engineering, IR’s Energy Saving Products Business Unit.

IR’s extensive range of digital audio MOSFETs addressing output power from 50W to 150W, are optimized for the IRS2053M to reduce component count and PCB space while achieving improved performance, efficiency, THD and EMI.

Specifications  

Part Number

Package

Offset Voltage

Sink/Source Current

Vcc Range (with UVLO)

Min/Max Output Voltage

Propagation Delay

TON/OFF

IRS2053

MLPQ48

200V or +/- 100V

300/900

10-15V

10-15V

325/370ns

100/145ns

selectable

Design Tools
A datasheet and application note are available on the International Rectifier website at www.irf.com. In addition, the IRAUDAMP11 Reference Design featuring the IRS2053M is also available.

Availability and Pricing
Pricing for the IRS2053M begins at US $5.60 each in quantities of 10,000-units. Pricing for the IRAUDAMP11 is US $249 per kit. Production quantities are available immediately. The devices are MSL2 Industrial qualified and RoHS compliant. Prices are subject to change.

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