Panasonic AN7148
The AN7148 is an integrated circuit designed for power amplifier of 2.1W (9V, 4 Ω) output. It is most suitably used for battery operated set such as radio cassette recorder because quiescent circuit current is small comparing to current power amplifier.FEATURES
● Low quiescent current● High operation stability
● Low radiation
● Low distortion
● Low noise
● Low shock noise from power ON/OFF operation
● Fewer external components 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 Ch.1 3 Ch.2 5 Input Circuit 6 4 GND (Input) Driver Circuit 9 GND (Output) Output Circuit 8 7 Over Temperature Protection 10 VCC Driver Circuit 11 Output Circuit 2 12 3.5±0.3 29.6±0.3 AN7148 s
ABSOLUTE MAXIMUM RATINGS
(Ta= 25˚C) Parameter Supply Voltage Supply Current Power Dissipation Operating Ambient Temperature Storage Temperature * R θ j – c = 3˚C/W Symbol VCC ICC PD * Topr Tstg ICs for Audio Common Use Rating 24 3.5 41.7 – 30 ~ + 75 – 55 ~ + 150 Unit V A W ˚C ˚C s Electrical Cha...