AN7170 [PANASONIC]
18W Audio Power Amplifier Circuit; 18W音频功率放大电路
| 型号： | AN7170 |
| 厂家： | 
PANASONIC |
| 描述： | 18W Audio Power Amplifier Circuit |
| 文件： | 总4页 (文件大小：51K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Audio Common Use
AN7170
18W Audio Power Amplifier Circuit
■ Overview
Unit : mm
5.85±0.25 4.7±0.6
The AN7170 is an integrated circuit manufactured by
high voltage process designed for power amplifier of bus,
track amplifier. Wide operating supply voltage range with
output of 18W at 26.4V. It can be widely used for bus,
truck amp., car stereo, home entertainment stereo set
and TV sound multiplex output.
15.0±0.3
3.6±0.2
1.0±0.2
2.7±0.4
11
10
9
8
7
1.8R
6
5
4
3
2
1
■ Features
•
•
•
High output power : PO =18W
High surge voltage : VCC (surge) = 60V (max.)
Wide supply voltage range : VCC (opr) = 8 ~ 35V
Incorporating protection circuits (overvoltage, overcur-
rent, temperature, load short)
3.5±0.25
•
5.5±0.3 7.5±0.3
0.35±0.25
•
•
Incorporating automatic operating point stabilizer circuit
Low distortion, low 1/f noise
11-Lead SIP Package (HSIP011-P-0000)
■ Block Diagram
VCC
11
9
Surge
Over Current
Protection
Temperature
Compensation
Ripple
Filter
4
1
Input
Circuit
Driver
Circuit
Output
Circuit
7
8
GND
(Input)
6
5
3
GND (Output)
ICs for Audio Common Use
AN7170
■ Absolute Maximum Ratings (Ta= 25˚C)
Parameter
Supply Voltage (at no signal)
Supply Voltage (at operation)
Peak Supply Voltage Note 1)
Supply Current
Symbol
Rating
Unit
V
VCC
VCC
35
30
60
V
VCC (surge)
ICC
V
4
A
Power Dissipation Note 2)
Operating Ambient Temperature
Storage Temperature
PD
31.25
W
˚C
˚C
– 30 ~ + 75
– 55 ~ + 150
Topr
Tstg
Note 1) Pulse Voltage application t = 0.2s
Note 2) Ta = 25˚C ( θj – c = 4˚C/W)
■ Electrical Characteristics (VCC = 26.4V, f = 1kHz, Ta= 25˚C)
Parameter
Symbol
Condition
min.
typ.
max.
Unit
(RL= 8Ω)
ICQ
GV
40
75
160
55
mA
dB
W
Quiescent Circuit Current
Voltage Gain
Vi= 0mV
Vi= 3mV
THD= 1%
51
8
53
9.5
12
No Distortion Maximum Output
PO
10.5
W
THD= 10%
Vi= 3mV
0.1
0.7
40
0.7
1.5
%
Total Harmonic Distortion
Output Noise Voltage
Ripple Rejection Ratio
Input Impedance
THD
Vno
RR
Zi
mV
Rg= 10kΩ, DIN A Filter
Vi= 0mV, Rg= 0Ω
dB
30
kΩ
(RL= 4Ω)
THD= 1%
13
18
W
W
No Distortion Maximum Output
PO
THD= 10%
■ Pin Descriptions
Pin No.
Pin Name
Pin No.
Pin Name
1
2
3
4
5
6
Output
NC
7
8
9
Input
GND (Input)
Ripple Filter
GND (Output)
Bootstrap
10 NC
11 VCC
Phase Compensation
Negative Feedback
ICs for Audio Common Use
AN7170
PO, PD, THD – Vi
PD – Ta
PO – VCC
40
24
20
16
12
8
100
30
THD = 10%
(1) Tc= Ta (θj – c = 4˚C/W)
(2) With a 100cm2 × 3mm Al
heat sink (black color coated)
VCC = 24V, RL = 4Ω
f = 1kHz, GV = 53dB
RL = 4Ω
L = 8Ω
R
5%
1%
PO
or a 200cm2 × 2mm Al heat
sink (not lacquered)
32
24
16
8
10
(3) With a 100cm2 × 2mm Al
heat sink (not lacquered)
(1)
PD
3
1
1%
(2)
(3)
0.3
0.1
0.03
0.01
THD
4
0
0
0
40
80
120
160
200
0
12
16
20
24
28
32
0.1 0.3
1
3
10
30
100
Ambient Temperature Ta (˚C)
Supply Voltage VCC (V)
Input Voltage Vi (mV)
PO, PD, THD – Vi
GV, THD – f
GV, THD – f
100
30
100
30
VCC = 24V, RL = 8Ω
f = 1kHz
GV = 53dB
V = 46dB
VCC = 24V
L = 8Ω
O = 2W
VCC = 24V
L = 4Ω
O = 4W
V = 53dB
G
R
P
R
P
G
4
2
G
G
V = 53dB
V = 46dB
10
10
GV
0
0
–2
GV
3
3
PD
–2
– 4
PO
PO
– 4
– 6
1
1
2.0
THD
0.3
0.1
0.03
0.01
0.3
0.1
0.03
0.01
1.5
1.0
0.5
0
1.5
1.0
0.5
0
THD
THD
THD
1k
0.1 0.3
1
3
10
30
100
10
100
1k
10k
100k
10
100
10k
100k
Input Voltage Vi (mV)
Frequency f (Hz)
Frequency f (Hz)
PD – PO
16
f = 1kHz
RL = 4Ω
L = 8Ω
R
14
12
10
8
VCC = 30V
28V
24V
30V
6
28V
22V
4
24V
16V
2
16V
22V
0
0
4
8
12 16 20 24 28 32
Output Voltage PO (W)
ICs for Audio Common Use
AN7170
■ Application Circuit
+
–
VCC = 26.4V
+
–
100µF
1000µF
9
11
150Ω
47µF
+
–
Input
7
8
4
1
0.033µF
1500pF
AN7170
150Ω
+
–
1000µF
0.1µF
6
5
3
*
2
2.2Ω
*
1
4Ω or 8Ω
+
–
100µF
*
*
1. 82Ω at GV = 46dB, R = 0 at GV = 53dB
2. 12pF at GV = 46dB, 8pF at GV = 53dB
(C = 0 is allowable for frequency characteristics adjustment in high band)
■ Printed Circuit Board Layout
Scale : 1/1
VCC
+
–
1000µF
AN7170
1
11
12pF
2.2Ω
150Ω
+
–
+
–
IN
100µF
1500pF
OUT
+
–
0.033µF
相关型号：
©2020 ICPDF网 联系我们和版权申明