New Products
April 24, 2009
IR Driver IC Integrates Four Channels In Single Compact IC To Shrink Board Size by 50%
International Rectifier (IR) introduced the IRS2093 driver IC for high performance Class D Audio applications from 50 to 150W including home theater systems and car audio amplifiers. Based upon a half bridge topology, the IRS2093 integrates four channels of high-voltage, high performance Class D audio amplifier drivers with PWM modulators in a single IC. Housed in a compact MLPQ48 package, the new IC is said to shrink board size by a further 50% compared to previous offerings.
"With the addition of an external MOSFET and passive components, a complete four channel Class D audio amplifier can be realized in a 50% smaller footprint, delivering the efficiency and size advantages of Class D while providing the high audio performance traditionally associated with Class AB solutions," said Jun Honda, IR’s Systems Engineering Manager, Energy Saving Products Business Unit.
The IRS2093 offers error amplifier, PWM comparator, gate driver, and robust protection circuitry. In addition the new 200V device features an analog PWM modulator with frequency up to 800 kHz, programmable bidirectional over-current protection (OCP) with self-reset control, under-voltage lockout protection (UVLO), and programmable preset deadtime for a scalable power design.
The IC may be co-designed with IR’s extensive range of digital audio MOSFETs addressing output power from 50 to 150W. These MOSFETs have been optimized around parameters critical to audio performance such as efficiency, THD, and EMI.
Pricing for the IRS2093 begins at US $10.80 in 10,000-unit quantities. The IRAUDAMP8 reference design is priced at US $294.00. Production orders are available immediately.
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Primitive batteries capable of producing ½ volt of electricity were made in Mesopotamia between around 200 B.C. and 200 A.D. They were used mainly for electroplating silver onto copper.