Ordering number:ENN1164C
Monolithic Linear IC
LA4500
5.3W 2-Channel AF Power Amplifier
Features
• Low idling current (20mA/2 channels) enabling prolonged
battery life.
• Less dependence of idling current on V
CC
.
• High power (5.3W typ.
×2).
• High ripple rejection (60dB at steady state).
Since filters are arranged in 3 stages (including 1 stage
inside the IC) to attain satisfactory ripple rejection at tran-
sient state, ripple occuring at the time of motor start can
be prevented from mixing in.
• Low pop noise at the time of power supply ON/OFF and
good starting balance between both channels (0.6s.) due
to built-in pop noise limiter.
• Pins provided for compensating high frequency responce.
• Low residual noise (0.4mV).
• Wide supply voltage range (6 to 24V) fascilitating design
of transformer power supply.
• Built-in thermal shutdown circuit,
• Designed so that inverse insertion or short between adja-
cent pins causes no destruction.
• Channel-to channel mirror image pin assignment and pro-
vision of Pre GND, Power GND pins enabling stable op-
eration and fascilitating artwork of printed circuit board.
• Minimum number of external parts required (9pcs. min.,
12pcs. typ.).
• Audio muting capability (for automatic music selection,
electronic tuner).
Package Dimensions
unit:mm
3037A-DIP20H
[LA4500]
20
11
R1.7
12.7
11.2
8.4
1
20.0
27.0
10
2.07
2.54
0.6
1.3
Specifications
Absolute Maximum Ratings
at Ta = 25˚C
Parameter
Maximum supply voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
IO peak
Conditions
1 channel
With infinite heat sink
Ratings
24
2.5
15
–20 to +75
–40 to +150
4.0
4.0
SANYO : DIP20H
Unit
V
A
W
Pd max
Topr
Tstg
˚C
˚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’s
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
21500TN (KT)/N2996RM/9036KI/8064KI No.1164–1/12
0.4
SANYO [ SANYO SEMICON DEVICE ]
