This part is a kind of semiconductor called AN5277.

Function of this product has Dual Channel SEPP Power Amplifier.

Manufacturers : Panasonic Semiconductor

Image and pinout :

Some of the text within the PDF file :

ICs for Audio Common Use AN5277 Dual Channel SEPP Power Amplifier s Overview The AN5277 is a monolithic integrated circuit designed for 10.0 W (26 V, 8 Ω)output audio power amplifier. It is a dual channel SEPP IC suitable for stereo operation in TV application. 29.75±0.30 28.0±0.3 20.0±0.3 7.7±0.3 Unit : mm 12 (10.0) φ3.6 (1.27) (1.3) • Few external components : • No Boucherot cells(output C, R) • No Bootstrap Capacitors • No Negative Feedback Capacitors • Built-in muting circuit • Built-in standby circuit • Built-in various protection circuits (Load-short, thermal, over-voltage and current) • High ripple rejection(55 dB) • Compatible with AN5275, AN5276 • Operating voltage range 10 ∼ 32 V(26 V typ.) R1.8 0.6 +0.10 0.25 –0.05 2.54 1 0.6 –0.05 (1.2 [ ... ]

AN5277 PDF Datasheet Download