SANYO LA4275

Ordering number: EN 2237B
Monolithic Linear IC
LA4275
6.0 W AF Power Amplifier
for Home Stereo, TV Use
Features
Package Dimensions
. Small-sized package of 7-pin SIP
. High power and low distortion
.
.
.
.
.
unit : mm
3075-SIP7H
PO = 6.0 W at VCC = 25 V, RL = 8 Ω,
f = 1 kHz, THD = 1.0%
THD = 0.1% at VCC = 25 V, RL = 8 Ω,
f = 1 kHz, PO = 2 W
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)
[LA4275]
Specifications
SANYO : SIP7H
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Maximum supply voltage
VCC max
Maximum output current
IO peak
Allowable power dissipation
Pd max
Conditions
Ratings
Quiescent
Unit
35
V
3.5
A
10
W
Operating temperature
Topr
With heat sink
–20 to +75
°C
Storage temperature
Tstg
–40 to +150
°C
Ratings
Unit
Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Operating voltage range
Recommended load resistance
Symbol
Conditions
VCC
25
V
VCC op
10 to 32
V
RL
8 to 16
Ω
Operating Characteristics at Ta = 25°C, VCC = 25 V, RL = 8 Ω, f = 1 kHz, Rg = 600 Ω,
See specified Test Circuit.
Parameter
Quiescent current
Voltage gain
Output power
Total harmonic distortion
Output noise voltage
Ripple rejection
Symbol
ICCO
VG
PO
THD
VNO
SVRR
Conditions
min
Quiescent
THD = 1%
PO = 2 W
Rg = 10 kΩ, BW = 20 Hz to 20 kHz
Rg = 10 kΩ, fR = 100 Hz, VR = 0 dBm
38
5.0
45
typ
30
40
6.0
0.1
0.25
55
max
60
42
0.8
1.0
Unit
mA
dB
W
%
mV
dB
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
Allowable power dissipation, Pd max – W
Equivalent Circuit Block Diagram and Pin Assignment
Pd max – Ta
Al heat sink
Mounting torque
39N·cm
With silicone
grease applied
Infinite
heat sink
No heat sink
Ambient temperature, Ta – °C
Sample Application Circuit (Test Circuit)
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 indemnify and defend 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