TDA8591J

4 × 44W into 4Ω or 4 × 75W into 2Ω quad BTL car radio power amplifier

GENERAL DESCRIPTION

The is a quad BTL audio power amplifier comprising four independent amplifiers in Bridge Tied Load BTL configuration. Each amplifier has a gain of 26 dB and supplies an output power of 75 W EIAJ into a 2 Ω load. The TDA8591J has low quiescent current and is primarily developed for car audio applications.

FEATURES

• Low quiescent current

• Low distortion

• Low output offset voltage

• Soft thermal clipping to prevent audio holes

• External mute timer for low start-up plop also allows a fast mute function

• High output power

• Operating, mute and standby mode selection by two-pin or single-pin operation

• Diagnostic information available:

– Dynamic Distortion Detection DDD

– High temperature detection

– Short-circuit detection

– Detection of output offset due to leakage current at the input

• No switch-on/switch-off plops when switching between standby and mute modes or between mute and operating modes

• Fast mute with supply voltage drops

• Package with flexible leads

• All outputs can withstand short-circuits to ground, to the positive supply voltage and across the load

• Pin CP can withstand short-circuits to its adjacent pins, all other pins can withstand short-circuits to ground and to the positive supply voltage

• ESD protection on all pins

• Thermal protection against junction temperatures exceeding 150 °C

• Load dump protection

• Protected against open ground pins loss of ground and outputs short-circuited to supply ground

• All negative outputs are protected against open supply voltage and output short-circuited to supply voltage

• Reverse-polarity safe.