TDA8954TH 2x 150W Class-D Amp 90% Efficiency Low 0.01% THD Mute/Standby OT/SC Protection Wide ±12.5V to ±40V Supply Self-Guarding Outputs

TDA8954TH 2x 150W Class-D Amp 90% Efficiency Low 0.01% THD Mute/Standby OT/SC Protection Wide andplusmn;12.5V to andplusmn;40V Supply Self-Guarding Outputs

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Features

High output power in typical applications:

andnbsp; SE 2 andtimes; 210 W, RL = 4 andOmega; (VDD = 41 V; VSS = andminus;41 V)

andnbsp; SE 2 andtimes; 235 W, RL = 3 andOmega; (VDD = 39 V; VSS = andminus;39 V)

andnbsp; SE 2 andtimes; 150 W, RL = 6 andOmega; (VDD = 41 V; VSS = andminus;41 V)

andnbsp; BTL 1 andtimes; 420 W, RL = 8 andOmega; (VDD = 41 V; VSS = andminus;41 V)

Symmetrical operating supply voltage range from andplusmn;12.5 V to andplusmn;42.5 V

Stereo full differential inputs, can be used as stereo SE or mono BTL amplifier

Low noise

Smooth pop noise-free start-up and switch off

2-pin diagnostics for protection circuits

Fixed frequency internal or external clock

High efficiency andasymp;93 %

Zero dead time switching

Low quiescent current

Advanced protection strategy: voltage protection and output current limiting

Thermal FoldBack (TFB) with disable functionality

Fixed gain of 30 dB in SE and 36 dB in BTL applications

Fully short-circuit proof across load

BD modulation in BTL configuration

Clock protection

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Applications

andnbsp;DVD

andnbsp;Home Theater In A Box (HTIAB) system

andnbsp;Mini and micro receiver

andnbsp;High-power speaker system

andnbsp;Subwoofers

andnbsp;Public Address (PA) system

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Description

The TDA8954 is a stereo or mono high-efficiency Class D audio power amplifier in a single IC featuring low power dissipation. It is designed to deliver up to 2 andtimes; 210 W into a 4 andOmega; load in a stereo Single-Ended (SE) application, or 1 andtimes; 420 W into an 8 andOmega; load in a mono Bridge-Tied Load (BTL) application.

It combines the benefits of Class D efficiency (andasymp;93 % into a 4 andOmega; load) with audiophile sound quality comparable to that associated with Class AB amplification.

The amplifier operates over a wide supply voltage range from andplusmn;12.5 V to andplusmn;42.5 V and features low quiescent current consumption.

The TDA8954 is supplied with two diagnostic pins for monitoring the status of Thermal Fold Back (TFB), Over Current Protection (OCP) and other protection circuits.

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INFORMATION

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Drawing

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