Product Summary

The TDA8947J is a 4-channel audio amplifier. The TDA8947J contains four identical audio power amplifiers. The device 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.

Parametrics

TDA8947J absolute maximum ratings: (1)VCC, supply voltage operating: -0.3 to +26 V; no (clipping) signal: -0.3 +28 V; (2)VI, input voltage: -0.3 to VCC + 0.3 V; (3)IORM repetitive peak output current: 4 A; (4)Tstg, storage temperature non-operating: -55 to +150℃; (5)Tamb, ambient temperature: -40 to +85℃; (6)Ptot, total power dissipation: 69 W; (7)VCC(sc), supply voltage to guarantee short-circuit protection: 24V.

Features

TDA8947J features: (1)SE: 1 W to 25 W, BTL: 4 W to 50 W operation possibility (2.1 system); (2)Soft clipping; (3)Standby and mute mode; (4)No on/off switching plops; (5)Low standby current; (6)High supply voltage ripple rejection; (7)Outputs short-circuit protected to ground, supply and across the load; (8)Thermally protected; (9)Pin compatible with TDA8944AJ and TDA8946AJ.

Diagrams

TDA8947J block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TDA8947J
TDA8947J
Other

Data Sheet
Negotiable 
TDA8947J/N3,112
TDA8947J/N3,112
NXP Semiconductors
Audio Amplifiers 3/4 CHANNEL AUD AMP
Data Sheet
Negotiable