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PDF LA4663 Data sheet ( Hoja de datos )
| Número de pieza | LA4663 | |
| Descripción | Two-Channel 16-W BTL General-Purpose Audio Power Amplifier | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Ordering number : ENN5905A
Monolithic Linear IC
LA4663
Two-Channel 16-W BTL General-Purpose
Audio Power Amplifier
Overview
The LA4663 is a BTL 2-channel power amplifier IC that
was developed for ease of use in general audio
applications. In addition to providing improvements in a
wide range of electrical characteristics, the LA4663 aims
for improved listenability and an excellent cost-
performance ratio.
(The startup time can be modified in end products by
using this circuit in conjunction with the muting circuit
described above.)
• Full complement of built-in protection circuits
(protection from shorting to ground, shorting to VCC,
load shorting, and overheating)
• High audio quality, minimal impulse noise
Applications
Radio/cassette players with built-in CD/MD players,
microcomponent stereo systems, active speakers,
electronic musical instruments, and other audio devices.
Features
• Wide operating supply voltage range (VCCop): 5.5 to
22 V (Certain conditions may apply.)
• High ripple rejection ratio: 60 dB (typical)
• Power: 16 W × 2 (VCC = 15 V/6Ω),
13 W × 2 (VCC = 12 V/4Ω), 6.5 W × 2 (VCC = 9 V/4Ω)
• Built-in signal muting circuit (AC muting) reduces the
number of external components and provides muting
with minimal switching noise.
• Startup circuit with a start time of 0.6 to 0.7 seconds.
The LA4663 provides distortion-free startup, since
output is only generated after the supply voltage reaches
the midpoint at power on.
Package Dimensions
unit: mm
3113A-SIP14HZ
[LA4663]
27.0
20.0
1
1.94 0.5
3.56
1.78 3.56
14
4.0
0.4
1.6
2.2
SANYO: SIP14HZ
Specifications
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
Conditions
No signal
Per channel
With an arbitrarily large heat sink
Ratings
24
3.5
37.5
–20 to +75
–40 to +150
Unit
V
A
W
°C
°C
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
42800TN (OT)/70898RM (OT) No. 5905-1/10
1 page  
LA4663
Equivalent Circuit Block Diagram
+5 V
R1
22 kΩ
SIGNAL
MUTE
6
+5 V
+ C4
– 10 µF
10 V
C1
4.7 µF
10 V
–+
IN1
2
5
STAND BY
7
VCC1
CH 1
+ Output amplifier
–
Ri =
20 kΩ Input amplifier
8
VCC2
+OUT1
14
PWR
GND1
13
12
–OUT1
VCC
+ C5
– 2200 µF
25 V
C6
0.1 µF
RL = 4 to 8 Ω
R2
2.2 Ω
**
R3
2.2 Ω
**
C7
0.1 µF
PRE
GND
3
VCC/ground shorting protection
circuit
Load shorting protection circuit
Thermal protection circuit
— Protection circuits —
**
Polyester film capacitors
C2
4.7 µF
10 V
–+
Input amplifier
IN2
4
Ri =
20 kΩ
+
Output amplifier
–
CH 2
+OUT2
9
PWR
GND2
10
11
–OUT2
C8
0.1 µF
RL = 4 to 8 Ω
R4
2.2 Ω
**
R5
2.2 Ω
**
C9
0.1 µF
Ripple Filter/
Starting Time
1
+ C3
– 47 µF
25 V
A10630
Pin Voltages at VCC = 15 V, with 5 V applied to the STBY pin (pin 5), using a digital volt meter.
Pin No.
Pin
Pin voltage (V)
1
RF
14.32
23456
IN1
PRE-GND
IN2
STAND-BY
MUTE
3 m 0 3 m 5 21m
7
VCC1
15
Pin No.
Pin
Pin voltage (V)
8
VCC2
15
9
+OUT2
6.84
10
PWR-GND2
0
11
–OUT2
6.84
12
–OUT1
6.84
13
PWR-GND1
0
14
+OUT1
6.84
No. 5905-5/10
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet LA4663.PDF ] | |
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