AN7171NK

ICs for Audio Common Use AN7171NK, AN7176K Dual BTL 14W Audio Power Amplifier Circuits s Overview The AN7171NK and AN7176K are ICs for power amplification of 14W (13.2V, 4Ω) output. It can provide stereo operation since two BTL amplifiers are incorporated in a chip. It incorporates various protective circuits, thus providing high reliability. The circuits can be turned on or off with supply pins energized, because the stand-by circuit is built-in. ø 3.6 5.9±0.25 7.7±0.3 7.8±0.5 6.33±0.5 16 0.6±0.2 Unit : mm 29.96±0.3 28.0±0.3 20.0±0.25 0.6 R1.8 temperature, or against over-voltage, short-circuit between output and earth and between output and VCC, load short-circuit) Small shock noise at power ON/OFF Fewer external components required Good oscillation stability 1.2±0.1 (0.25) 1.45±0.25 1.8±0.25 (1.2) 1.45±0.25 Fin-attached 16-lead ZIP package (EZIP016-P-0660) s Block Diagram NF (Ch.1) 8 VCC Ripple Filter (Ch.1) IN 1 13 6 Input Circuit Stand-by Circuit Input Circuit Driver Circuit Output Circuit NF (Ch.1) 7 Input Circuit Driver Circuit Output Circuit 4 3 2 OUT (Ch.1) (+) GND OUT (Ch.1) (–) STAND-BY 5 Protection Circuit (Ch.2) IN 12 Driver Circuit Output Circuit 16 15 OUT (Ch.2) (+) GND OUT (Ch.2) (–) GND 10 Input Circuit 11 NF (Ch.2) 9 NF (Ch.2) Driver Circuit Output Circuit 14 2.54±0.8 s Features Two BTL 14W outputs built-in Stand-by circuit built-in Various protective circuits (for 1.778 1 2.8±0.3 12.5±0.3 (14.1) 2.66 (4.06) 3.5±0.3 ...