International Rectifier has introduced the IRS2093 driver IC for high performance Class D audio applications from 50 W to 150 W. Based upon a half bridge topology, the device 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 50% compared to previous offerings. The IRS2093 offers error amplifier, PWM comparator, gate driver and robust protection circuitry. In addition, the new 200 V 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.
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