AN7147N

ICs for Audio Common Use AN7147N Dual 5.3W Audio Power Amplifier Circuit s Overview The AN7147N is an integrated circuit designed for power amplifier of 5.3W (12.0V, 3Ω) output. Stereo operation is enabled due to incorporating two amps. on one chip. It makes high reliability by smaller quiescent current compared with power amp. current and protectors built in. As quiescent circuit current is very small, it is most suitably used for battery operated set such as radio cassette recorder. Furthermore, low distortion and low noise are realized and external components are very few. 12-pin SIL package enabled compact and high integrated set. 5.9±0.25 7.7±0.3 7.8±0.25 ø 3.6 12 Unit : mm 29.96±0.3 28.0±0.3 20.0±0.2 0.6±0.1 R1.8 0.6 s Features Low quiescent current High operation stability Low radiation Low distortion Low noise Low shock noise from power ON/OFF operation Fewer external componetns s Pin Descriptions Pin No. 1 2 3 4 5 6 Pin Name N.F.B Ch.1 Input Ch.1 Ripple Filter GND (Input) Input Ch.2 N.F.B Ch.2 1 + 0.1 0.35 – 0.05 2.54 12-Lead SIP Package with Fin (HSIP012-P-0000A) 1.2±0.1 Pin No. 7 8 9 10 11 12 Pin Name Output Ch.2 Bootstrap Ch.2 GND (Output) VCC Bootstrap Ch.1 Output Ch.1 s Block Diagram 1 Input Circuit Driver Circuit 11 Output Circuit Over Current Over Temperature Protection Input Circuit 6 4 GND (Input) Driver Circuit 9 GND (Output) Output Circuit 8 2 12 3 10 VCC 5 7 3.5±0.3 29.6±0.3 AN7147N s Absolute Maximum Ratings (Ta= 25˚C)...