Ordering number : ENN5905A
Monolithic Linear IC
LA4663
Two-Channel 16-W BTL General-Purpose
Audio Power Amplifier
Overview
The LA4663 is a BTL 2-channel power amplifier IC that
was developed for ease of use in general audio
applications. In addition to providing improvements in a
wide range of electrical characteristics, the LA4663 aims
for improved listenability and an excellent cost-
performance ratio.
(The startup time can be modified in end products by
using this circuit in conjunction with the muting circuit
described above.)
鈥?Full complement of built-in protection circuits
(protection from shorting to ground, shorting to V
CC
,
load shorting, and overheating)
鈥?High audio quality, minimal impulse noise
Applications
Radio/cassette players with built-in CD/MD players,
microcomponent stereo systems, active speakers,
electronic musical instruments, and other audio devices.
Package Dimensions
unit: mm
3113A-SIP14HZ
[LA4663]
27.0
20.0
R1.7
4.0
Features
鈥?Wide operating supply voltage range (V
CC
op): 5.5 to
22 V (Certain conditions may apply.)
鈥?High ripple rejection ratio: 60 dB (typical)
鈥?Power: 16 W
脳
2 (V
CC
= 15 V/6鈩?,
13 W
脳
2 (V
CC
= 12 V/4鈩?, 6.5 W
脳
2 (V
CC
= 9 V/4鈩?
鈥?Built-in signal muting circuit (AC muting) reduces the
number of external components and provides muting
with minimal switching noise.
鈥?Startup circuit with a start time of 0.6 to 0.7 seconds.
The LA4663 provides distortion-free startup, since
output is only generated after the supply voltage reaches
the midpoint at power on.
8.4
7.8
1
1.94
3.56
0.5
14
5.2
4.6
0.4
1.6
2.2
1.78
3.56
SANYO: SIP14HZ
Specifications
Maximum Ratings
at Ta = 25擄C
Parameter
Maximum supply voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
max
I
O
peak
Pd max
Topr
Tstg
No signal
Per channel
With an arbitrarily large heat sink
Conditions
Ratings
24
3.5
37.5
鈥?0 to +75
鈥?0 to +150
Unit
V
A
W
擄C
擄C
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft鈥檚
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
42800TN (OT)/70898RM (OT) No. 5905-1/10
14.5max
11.8
1
2
3
4
5
6
7
8
9
10
