1. ICs for Audio Common Use
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.
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
AN7140
5W Audio Power Amplifier Circuit
Unit : mm
19.9±0.1
18.3±0.25
0.1±0.05ø3.3±0.1
5.6±0.25
9
8
7
6
5
4
3
2
1
8.4±0.25 7.1±0.25
6.3±0.3 3.75±0.25
0.5±0.1
1.2±0.252.54
1.7±0.251.7±0.25
0.45
+0.1
–0.05
9-Lead SIP Package with Fin (HSIP009-P-0000)
15.0
5.8±0.25
1.5±0.25
ø 2.65±0.1
22.3±0.3
6
8 5 4
2
1
3
9
Input
Circuit
Power Supply
Ripple Rejection
Temperature
Compensation
Drive
Overvoltage
Protection
SEPP Output
Circuit
GNDGND 7
VCC
s Block Diagram
Pin No. Pin Name
1
2
3
4
5
6
7
8
9
Output
GND
Bootstrap
Phase Compensation
N.F.B
Input
GND
Ripple Filter
VCC
s Pin Descriptions

2. ICs for Audio Common UseAN7140
s Absolute Maximum Ratings (Ta= 25˚C)
VCC
ICC
PD
Topr
Tstg
Supply Voltage
Supply Current
Power Dissipation (Ta = 30˚C)
Operating Ambient Temperature
Storage Temperature
V
A
W
˚C
˚C
Parameter Symbol Rating Unit
20
4
10
– 30 ~ + 75
– 40 ~ + 150
Vi= 0
Vi= 3mV
THD= 10%
Vi= 3mV
Rg= 10kΩ
Parameter Symbol Condition min. typ. max. Unit
s Electrical Characteristics (VCC = 13.2V, RL = 4Ω, f = 1kHz, Ta = 25˚C)
30
53.5
5
0.15
1.5
30
Quiescent Circuit Current
Voltage Gain
Output Power
Total Harmonic Distortion
Output Noise Voltage
Input Impedance
ICQ
GV
PO
THD
Vno
Zi
mA
dB
W
%
mV
kΩ
15
51.5
4.5
55
55.5
1
3
12
10
8
6
4
2
0
Ambient Temperature Ta (˚C)
PowerDissipationPD(W)
80 120 160400
PD – Ta
20020 60 100 140 180
(1) Tc = 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
(1)
(2)
(3)
(4)
(5)
AN7140
–
+
–
+
–
+
–+
–
+
47µF
0.1µF
47µF
1000µF
2.2Ω
RL = 4Ω
470µF
47µF
Input
VCC =13.2V
s Application Circuit
8 9
3
1
4 25
6
7