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TDA8947J

IC 8.5 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM17, PLASTIC, SOT-243-1, DIL-BENT-SIL, 17 PIN, Audio/Video Amplifier

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TDA8947J


Brand:NXP


Description


The TDA8947J contains four identical audio power amplifiers. The TDA8947J can be used as: four Single-Ended (SE) channels with a fixed gain of 26 dB, two times Bridge-Tied Load (BTL) channels with a fixed gain of 32 dB or two times SE channels (26 dB gain) plus one BTL channel (32 dB gain) operating as a 2.1 system.

The TDA8947J comes in a 17-pin Dil-Bent-Sil (DBS) power package. The TDA8947J is pin compatible with the TDA8944AJ and TDA8946AJ.

The TDA8947J contains a unique protection circuit that is solely based on multiple temperature measurements inside the chip. This gives maximum output power for all supply voltages and load conditions with no unnecessary audio holes. Almost any supply voltage and load impedance combination can be made as long as thermal boundary conditions (number of channels used, external heatsink and ambient temperature) allow it.


Features


SE: 1 W to 25 W, BTL: 4 W to 50 W operation possibility (2.1 system)

Soft clipping

Standby and mute mode

No on/off switching plops

Low standby current

High supply voltage ripple rejection

Outputs short-circuit protected to ground, supply and across the load

Thermally protected

Pin compatible with TDA8944AJ and TDA8946AJ


Applications


Television

PC speakers

Boom box

Mini and micro audio receivers.


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