AN7551Z Datasheet, PDF (1/11 Pages) Panasonic Semiconductor – Power IC for BTL car audio

ICs for Audio Common Use
AN7551Z
Power IC for BTL car audio
s Overview
The AN7551Z is an audio power IC developed as a car
audio output (35 W × 4-ch). CR to stop oscillation is built
in between the output pin and GND so that a space sav-
ing of set is possible. Also, it is incorporating a perfect
muting circuit which does not make a shock noise so that
a shock noise design in the set transitional state can be
made easily when used together with its standby func-
tion. In addition, it is incorporating various protective
circuits to protect the IC from destruction by GND-open
earth short-circuiting and power supply surge which are
the important subject of power IC, and the IC will largely
contribute to a high reliability design of equipment.
s Features
• Pin arrangement which does not allow the input/output
patterns to intersect each other so that it is possible to
make a pattern design on a one-sided printed circuit
board.
• Incorporating various protection circuits (thermal pro-
tection, short-circuit to V_CC , short-circuit to V_CC in V_CC-
opened, short-circuit to GND, short-circuit to GND in
GND-opened, over voltage, power supply surge, and
ASO protection, etc.)
• Incorporating standby function (shock noise-free at STB-
on/off)
• Incorporating standby function (shock noise-free at
Mute-on/off)
• External components reduction
• Provided with beep sound input pin
• Equipped with auxiliary sound input pin
• Inverted pin layout of AN7550NZ on right and left pins
s Applications
• Car stereo, miniature audio component, karaoke and
other audio equipment.
31.0±0.3
27.0±0.3
21.0±0.1
(10.50) (10.50)
R1.8±0.1
Unit : mm
4.5±0.2
φ3.6±0.1
1.5±0.1
1
(1.26)
1.27
25
0.6
+0.2
– 0.1
(5.08)
(4.29)
0.40
+0.15
– 0.05
Seating plane
33.0±0.3
33.36±0.30
HZIP025-P-0980
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