ICs for Audio Common Use
n Overview
The AN7174K is an integrated circuit for 14W (13.2V,
4Ω) output power amplifier circuit. Two BTL amplifiers are
built-in on a single chip and stereo operation is possible.
It is highly reliable due to protection circuits built-in. The
built-in stand-by circuit makes it possible to switch the cir-
cuit ON/OFF with a charge mode to power supply pin.
n Features
• High output power (BTL 14W · 2)
• Stand-by circuit built-in
• Protection circuits built-in (temperature, overvoltage,
V
OUT
– GND short, Load short, V
OUT
–V
CC
short)
• Low shock noise from power ON/OFF operation
• Fewer external parts
• Highly stable operation
AN7174K
Dual BTL 14W Audio Power Amplifier Circuit
Unit : mm
6.33– 0.5
29.6
–
0.3
5.9– 0.25 7.7– 0.3 7.8– 0.5
1
16
29.96
–
0.3
0.6
–
0.2
1.778
ø 3.6
28.0
–
0.3
20.0
–
0.25
R1.80.6
1.2
–
0.1
3.5– 0.3
2.66
2.8– 0.3 12.5– 0.3
(14.1)
(4.06)
2.54
–
0.8
(0.25)
1.45– 0.25
1.8– 0.25
(1.2)
1.45– 0.25
16-Lead ZIP Package with Fin (EZIP016-P-0660)
Input
Circuit
Driver
Circuit
Output
Circuit
4
Input
Circuit
Driver
Circuit
Output
Circuit
2
3
7
6
13
1
8
1612
14
Input
Circuit
Driver
Circuit
Output
Circuit
Input
Circuit
Driver
Circuit
Output
Circuit
15
10
5
11 9
Protection Circuit
Stand – by
Circuit
GND
VCC
GND
GND
n Block Diagram