ICs for Audio Common Use
1
AN7077Z
Power supply and boost IC for class-H power amplifier
n Overview
A BTL 50 W · 2-channel (maximum. 75 W · 2-
channel) class-H power amplifier can be made up by com-
bining the power supply boost amplifier AN7077Z and
the single power supply BTL audio power amplifier
AN7194Z, and it is possible to make a low consumption
power system.
n Features
• Incorporating various protection circuits
• Built-in standby circuit
• Peak detection circuit : Limits class-H operation at high
frequency
• Built-in timer circuit
If a current larger than allowable value continues to flow
into the power supply transformer, this circuit stops the
class-H operation to prevent the transformer from dam-
age by a fire.
• Built-in mute function
• Built-in LED driver
n Applications
• Miniature audio component, CD player radio cassette,
karaoke and other audio equipment
HZIP015-P-0745A
Unit : mm
18.00– 0.30
13.50– 0.30
f 3.60– 0.10
10.0
–
0.30
115
4.00– 0.20
1.50– 0.10
0.50
+0.20
- 0.10 (0.61)
(2.54)
0.25
+0.15
- 0.05
R0.55
3.25
–
0.10
13.25
–
0.30
18.95
–
0.50
15.65
–
0.50
1.27
(1.80) (1.95)
19.00– 0.30
19.30– 0.30
2.40
–
0.50