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Ordering number: EN2683A
Monolithic Linear IC
LA4282
2-Channel 10 W AF Power Amplifier for
Use in Home Stereo, TV Applications
Overview
The LA4282 is an IC which seals a high-output power
amplifier for TVs and monitors in a compact package.
Package Dimensions
unit : mm
3049A-SIP12H
[LA4282]
Features
.
High-power 2-channel AF power amplifier
.
Low distortion
.
Minimum number of external parts required
(no bootstrap capacitor required)
.
Low pop noise at the time of power supply ON/OFF
.
Good ripple rejection (58 dB typ)
.
Wide operating voltage range
.
External muting available
.
On-chip protector against abnormality
(thermal shutdown, overvoltage)
SANYO : SIP12H
Specifications
Maximum Ratings atTa=25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Maximum output current I
Allowable power dissipation Pd max With heat sink 25 W
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –40 to +150 °C
max Quiescent 45 V
CC
O peak
4A
Operating Conditions at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
Recommended load resistance R
CC
V
op 10 to 40 V
CC
L
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
22896HA(II)/7118TA,TS No.2683-1/6
32 V
8 Ω
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LA4282
Operating Characteristics at Ta = 25°C, VCC=32V,RL=8Ω,f=1kHz, Rg = 600 Ω,
See Test Circuit.
Parameter Symbol Conditions min typ max Unit
I
(1) Quiescent 30 60 100 mA
Quiescent current
Voltage gain VG 38 40 42 dB
Voltage gain difference ∆VG 1.5 dB
Output power
Total harmonic distortion THD P
Output noise voltage V
Ripple rejection SVRR Rg = 10 kΩ,f
Crosstalk CT Rg = 10 kΩ 45 60 dB
Muting V
Equivalent Circuit Block Diagram and Pin Assignment
CCO
I
(2) Muting switch On 30 56 100 mA
CCO
P
(1) THD = 1% 9.0 10.0 W
O
P
(2) THD = 3% 10.0 11.5 W
O
NO
O(MT)
= 2 W 0.05 0.20 %
O
Rg=10kΩ, BW = 20 Hz to 20 kHz 0.25 1.0 mV
= 100 Hz, VR= 0 dBm 45 58 dB
R
Muting switch On, VIN= –5 dBm –35 dBm
No.2683-2/6
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Test Circuit
LA4282
Polyester film capacitor
–W
O
With arbitrarily large heat sink
With 200 × 200 × 1.5 mm3Al board
With 100 × 100 × 1.5 mm
With 50 × 50 × 1.5 mm
Independent IC
Allowable power dissipation, Pd max − W
Ambient temperature, Ta − °C
3
Al board
3
Al board
Tightening torque 39Nccm
With
silicone
grease
applied
–W
O
Output power, P
Supply voltage, VCC–V
Output power, P
Supply voltage, VCC–V
No.2683-3/6
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LA4282
–W
O
Output power, P
− dBm
O
Output signal level, V
Noise level
Frequency,f–Hz
Mute OFF
=8Ω)
(R
L
Mute ON
–W
O
Output power, P
Frequency,f–Hz
–W
O
Output Power, P
Input voltage, VIN− dBm
Total harmonic distortion, THD – %
Total harmonic distortion, THD – %
Output power, PO–W
Input voltage,VIN–mV
Frequency,f–Hz
Response – f
–A
CC
Response – dB
Current dissipation, I
Frequency,f–Hz
Output power, PO–W
No.2683-4/6
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–W
O
Output power, P
Supply voltage, VCC–V
LA4282
Allowable power dissipation, Pd – W
Output power, PO–W
Allowable power dissipation, Pd – W
–mV
Output noise voltage, V
–mV
NO
RO
Output power, PO–W
BW=20Hzto20kHz
Signal source resistance, Rg − Ω
Allowable power dissipation, Pd – W
Output power, PO–W
– mVms
RO
Output ripple voltage, V
Ripple voltage, VR– Vrms
Crosstalk, C.T – dB
Output ripple voltage, V
Supply voltage, VCC–V
Frequency,f–Hz
No.2683-5/6
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LA4282
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 February, 1996. Specifications and information herein are subject to change without notice.
No.2683-6/6
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