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LA4280 Datasheet PDF - Sanyo Semicon Device

Part Number LA4280
Description Monolithic Linear IC
Manufacturers Sanyo Semicon Device 
Logo Sanyo Semicon Device Logo 



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LA4280 datasheet, circuit
Ordering number:ENN2251B
Monolithic Linear IC
LA4280
2-Channel 10W AF Power Amplifier,
for Home Stereo, TV Use
Features
• High-power 2-channel AF power amplifier.
• Low distortion.
• Minimum number of external parts requierd (no boot-
strap capacitor requierd).
• Low pop noise at the time of power switch ON/OFF.
• Excellent ripple rejection (58dB typ).
• Wide operating voltage range (10V to 40V).
• External muting available.
• On-chip protector against abnormalities (thermal shut-
down, overvoltage).
Package Dimensions
unit:mm
3023A-SIP14H
[LA4280]
37.0
30.0
4.5
1
1.99 2.54
14
0.4
0.6 1.4
2.25
Specifications
SANYO : SIP14H
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
Pd max
Topr
Tstg
Quiescent
With heat sink
Conditions
Ratings
45
4
25
–20 to +75
–40 to +150
Unit
V
A
W
˚C
˚C
Operating Conditions at Ta = 25˚C
Parameter
Recommended supply voltage
Recommended load resistance
Operating voltage range
Symbol
VCC
RL
VCC op
Conditions
Ratings
32
8
10 to 40
Unit
V
V
Operating Characteristics at Ta = 25˚C, VCC=32V, RL=8, f=1kHz, Rg=600, See specified test circuit
Parameter
Symbol
Conditions
Ratings
min typ max
Unit
Quiescent current
Icco1
Icco2
Quiescent
MT/SW on
30 60 100 mA
30 56 100 mA
Voltage gain
VG
38 40 42 dB
Voltage gain difference
VG
1.5 dB
Output power
Po1 THD=1%
Po2 THD=3%
9.0
10.0
10.0
11.5
W
W
Continued on next page
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
21500TH (KT)/8016KI/D227AT/1179YT No.2251–1/3

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