AN7171NK Datasheet, PDF (1/4 Pages) Panasonic Semiconductor – Dual BTL 14W Audio Power Amplifier Circuits

ICs for Audio Common Use
AN7171NK, AN7176K
Dual BTL 14W Audio Power Amplifier Circuits
s Overview
The AN7171NK and AN7176K are ICs for power ampli-
fication 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 pro-
viding high reliability. The circuits can be turned on or off
with supply pins energized, because the stand-by circuit
is built-in.
s Features
• Two BTL 14W outputs built-in
• Stand-by circuit built-in
• Various protective circuits (for temperature, or against
over-voltage, short-circuit between output and earth
and between output and V_CC, load short-circuit)
• Small shock noise at power ON/OFF
• Fewer external components required
• Good oscillation stability
5.9±0.25 7.7±0.3 7.8±0.5
ø 3.6
6.33±0.5
16
Unit : mm
2.8±0.3
12.5±0.3
(14.1)
1
2.66
(4.06)
3.5±0.3
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) NF (Ch.1)
8
7
VCC 1
Ripple Filter 13
(Ch.1) IN 6
Input
Circuit
Driver
Circuit
Input
Circuit
Driver
Circuit
Output
Circuit
Output
Circuit
STAND-BY 5
(Ch.2) IN 12
Stand-by
Circuit
Input
Circuit
Protection Circuit
Driver
Circuit
Output
Circuit
GND 10
Input
Circuit
11
NF
(Ch.2)
9
NF
(Ch.2)
Driver
Circuit
Output
Circuit
4 OUT (Ch.1) (+)
3 GND
2 OUT (Ch.1) (–)
16 OUT (Ch.2) (+)
15 GND
14 OUT (Ch.2) (–)