ICs for Audio Common Use
AN7140
5W Audio Power Amplifier Circuit
s
Overview
The AN7140 is an integrated circuit designed for low
power amplifier such as portable radio, radio cassette
tape recorder and car radio. Wide supply voltage range
(6 ~ 16V) enables stabilized operation. Fewer external
components and 9-pin SIL package achieved compact
and highly integrated set.
ø 2.65±0.1
6.3±0.3
8.4±0.25
7.1±0.25
5.8±0.25
1.5±0.25
9
8
7
6
5
4
3
2
1
19.9±0.1
18.3±0.25
0.1±0.05
ø 3.3±0.1
Unit : mm
3.75±0.25
0.5±0.1
1.2±0.25
9-Lead SIP Package with Fin (HSIP009-P-0000)
s
Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
Output
GND
Bootstrap
Phase Compensation
N.F.B
Input
GND
Ripple Filter
V
CC
Pin Name
s
Block Diagram
V
CC
9
3
6
Input
Circuit
Drive
SEPP Output
Circuit
1
GND
7
Power Supply
Ripple Rejection
Temperature
Compensation
Overvoltage
Protection
2 GND
8
5
4
1.7±0.25
s
Features
•
High gain, low distortion, low noise
•
Fewer external components
•
Built-in thermal protection circuit
•
Built-in overvoltage protection circuit
•
Incorporating automatic operating point stabilizer circuit
•
Low shock noise when power is switched ON and OFF
15.0
1.7±0.25
2.54
5.6±0.25
0.45
– 0.05
+ 0.1
22.3±0.3
AN7140
s
Absolute Maximum Ratings
(Ta= 25˚C)
Parameter
Supply Voltage
Supply Current
Power Dissipation (Ta = 30˚C)
Operating Ambient Temperature
Storage Temperature
Symbol
V
CC
I
CC
P
D
T
opr
T
stg
ICs for Audio Common Use
Rating
20
4
10
– 30 ~ + 75
– 40 ~ + 150
Unit
V
A
W
˚C
˚C
s
Electrical Characteristics
(V
CC
= 13.2V, R
L
= 4Ω, f = 1kHz, Ta = 25˚C)
Parameter
Quiescent Circuit Current
Voltage Gain
Output Power
Total Harmonic Distortion
Output Noise Voltage
Input Impedance
Symbol
I
CQ
G
V
P
O
THD
V
no
Z
i
V
i
= 0
V
i
= 3mV
THD= 10%
V
i
= 3mV
R
g
= 10kΩ
Condition
min.
15
51.5
4.5
typ.
30
53.5
5
0.15
1.5
30
1
3
max.
55
55.5
Unit
mA
dB
W
%
mV
kΩ
P
D
– Ta
12
(1) T
c
= Ta
(2) With a 100
×
100
×
3mm AI
heat sink (black color coated)
(3) With a 200
×
200
×
2mm AI
heat sink
(4) With a 25
×
25
×
2mm AI heat sink
(5) Without heat sink
10
Power Dissipation P
D
(W)
(1)
8
(2)
6
(3)
4
(4)
2
(5)
0
0
20
40
60
80
100
120
140
160
180
200
Ambient Temperature Ta (˚C)
s
Application Circuit
–
47µF
+
8
Input
6
3
+
9
V
CC
=13.2V
+
–
470µF
AN7140
7
5
+
–
47µF
4
2
1
–
47µF
1000µF
+ –
0.1µF
2.2Ω
R
L
= 4Ω
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