Global Sources
EE Times-Asia
Stay in touch with EE Times Asia
EE Times-Asia > Controls/MCUs

IR rolls out driver IC for Class D amps

Posted: 02 Jul 2004 ?? ?Print Version ?Bookmark and Share

Keywords:international rectifier? ir? ir2011? driver ic?

International Rectifier (IR) unveiled a high- and low-side MOSFET driver IC for 100W to 1,000W Class D audio amplifier circuits.

According to the company, the IR2011's maximum ambient temperature rating of 125C improves safety margins compared to similar devices rated at 85C. The 200V driver has matched propagation delay on both channels to simplify high frequency circuits needed for optimum total harmonic distortion (THD) response. Logic inputs are compatible with CMOS or LSTTL output to 3V without any speed degradation.

"Typical voltage ratings for audio driver ICs on the market now range from 85V to 100V, and ambient temperature ratings average 85C," explained David Tam, VP for Consumer and Industrial Sector Business. "Our [IR] HVIC experience in making rugged and small high voltage devices enables a 200V, 125C device for the audio industry."

Applications for Class D amplifiers range from battery-powered portable products to high-end professional amplifiers, musical instruments and car and home multimedia systems. "The new IR2011, housed in the SO-8 package, will enable manufacturers to safely and efficiently boost their Class D audio amplifier performance, yet retain a small footprint," Tam added.

The new Class D audio driver IC is priced at $1.25 each in 8-pin DIP, and $1.30 each for the SO-8 package (IR2011S), both in 10,000-unit quantities. The device is also available in a lead-free package.

Article Comments - IR rolls out driver IC for Class D a...
*? You can enter [0] more charecters.
*Verify code:


Visit Asia Webinars to learn about the latest in technology and get practical design tips.

Back to Top