SANYO LA4275 Datasheet
Ordering number: EN 2237B
Monolithic Linear IC
LA4275
6.0 W AF Power Amplifier
for Home Stereo, TV Use
Features
.
Small-sized package of 7-pin SIP
.
High power and low distortion
P
=6.0WatVCC=25V,RL=8Ω,
O
f = 1 kHz, THD = 1.0%
THD = 0.1% at V
f = 1 kHz, P
.
Minimum number of external parts required (no bootstrap
capacitor required)
.
Low pop noise at the time of power switch ON/OFF
.
Excellent ripple rejection (55 dB typ.)
.
Wide operating voltage range (10 V to 32 V)
.
Protector against abnormalities built in (thermal shutdown,
overvoltage)
O
=25V,RL=8Ω,
CC
=2W
Specifications
Package Dimensions
unit : mm
3075-SIP7H
[LA4275]
SANYO : SIP7H
Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Maximum output current I
Allowable power dissipation Pd max With heat sink 10 W
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –40 to +150 °C
max Quiescent 35 V
CC
peak 3.5 A
O
Operating Conditions at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
Operating voltage range V
Recommended load resistance R
CC
CC
op 10 to 32 V
L
25 V
8to16 Ω
Operating Characteristics at Ta = 25°C, VCC=25V,RL=8Ω,f=1kHz, Rg = 600 Ω,
See specified Test Circuit.
Parameter Symbol Conditions min typ max Unit
Quiescent current I
Voltage gain VG 38 40 42 dB
Output power P
Total harmonic distortion THD P
Output noise voltage V
Ripple rejection SVRR Rg = 10 kΩ,f
CCO
NO
Quiescent 30 60 mA
THD = 1% 5.0 6.0 W
O
= 2 W 0.1 0.8 %
O
Rg=10kΩ, BW = 20 Hz to 20 kHz 0.25 1.0 mV
= 100 Hz, VR= 0 dBm 45 55 dB
R
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
O3096HA(II)/D228YT/8016KI/O155KI,TS No.2237-1/2
LA4275
Equivalent Circuit Block Diagram and Pin Assignment
No heat sink
Pd max – Ta
Al heat sink
Mounting torque
39N·cm
With silicone
grease applied
Infinite
heat sink
Sample Application Circuit (Test Circuit)
Allowable power dissipation, Pd max – W
Ambient temperature, Ta – °C
Polyester
film
capacitor
No products described or contained herein are intended for use in surgical implants, life-support systems,
aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like,
the failure of which may directly or indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1 Accept full responsibility and indemnifyanddefend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation
and all damages, cost and expenses associated with such use:
2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or
implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of October, 1996. Specifications and information herein are subject to change without notice.
No. 2237-2/2
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