LA4282.PDF
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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
Package Dimensions
unit : mm
The LA4282 is an IC which seals a high-output power
amplifier for TVs and monitors in a compact package.
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
CC
max Quiescent
45
V
Maximum output current
I
O peak
4
A
Allowable power dissipation
Pd max With heat sink
25 W
Operating temperature
Topr
–20 to +75 °C
Storage temperature
Tstg
–40 to +150 °C
Operating Conditions
at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
V
CC
32
V
V
CC
op
10 to 40
V
Recommended load resistance
R
L
8
W
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
LA4282
Operating Characteristics
at Ta = 25°C, V
CC
=32V,R
L
=8
W
,f=1kHz, Rg = 600
W
,
See Test Circuit.
Parameter
Symbol
Conditions
min typ max Unit
Quiescent current
I
CCO
(1) Quiescent
30 60 100 mA
I
CCO
(2) Muting switch On
30 56 100 mA
Voltage gain
VG
38 40 42 dB
Voltage gain difference
D
VG
1.5 dB
Output power
P
O
(1) THD = 1%
9.0 10.0
W
P
O
(2) THD = 3%
10.0 11.5
W
Total harmonic distortion
THD P
O
= 2 W
0.05 0.20 %
Output noise voltage
V
NO
Rg=10k
W
, BW = 20 Hz to 20 kHz
0.25 1.0 mV
Ripple rejection
SVRR Rg = 10 k
W
,f
R
= 100 Hz, V
R
= 0 dBm
45 58
dB
Crosstalk
CT Rg = 10 k
W
45 60
dB
Muting
V
O(MT)
Muting switch On, V
IN
= –5 dBm
–35 dBm
Equivalent Circuit Block Diagram and Pin Assignment
No.2683-2/6
LA4282
Test Circuit
Polyester film capacitor
With arbitrarily large heat sink
Tightening torque 39N
c
cm
With
silicone
grease
applied
With 200
´
200
´
1.5 mm
3
Al board
With 100
´
100
´
1.5 mm
3
Al board
With 50
´
50
´
1.5 mm
3
Al board
Independent IC
Ambient temperature, Ta − °C
Supply voltage, V
CC
–V
Supply voltage, V
CC
–V
No.2683-3/6
LA4282
Frequency,f–Hz
Frequency,f–Hz
Mute OFF
(R
L
=8
W
)
Noise level
Mute ON
Input voltage, V
IN
− dBm
Input voltage,V
IN
–mV
Output power, P
O
–W
Frequency,f–Hz
Response – f
Frequency,f–Hz
Output power, P
O
–W
No.2683-4/6
Output ripple voltage, V
RO
–mV
Output noise voltage, V
NO
–mV
Allowable power dissipation, Pd – W
Output power, P
O
–W
Crosstalk, C.T – dB
Output ripple voltage, V
RO
– mVms
Allowable power dissipation, Pd – W
Allowable power dissipation, Pd – W
Plik z chomika:
maciejek62
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