Dual BTL 14W Audio Power Amplifier
ICs for Audio Common Use
AN7171NK, AN7176K
Dual BTL 14W Audio Power Amplifier Circuits
s Overview
The AN7171NK and AN71...
Description
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
...
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