AN7164 [PANASONIC]
30 W BTL audio power amplifier; 30瓦BTL音频功率放大器
| 型号： | AN7164 |
| 厂家： | 
PANASONIC |
| 描述： | 30 W BTL audio power amplifier |
| 文件： | 总3页 (文件大小：42K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Audio Common Use
AN7164
30 W BTL audio power amplifier
■ Overview
Unit : mm
7.7±0.3
The AN7164 is an integrated circuit designed for 30
W (VCC = 21 V, 8 Ω) output power amplifier. High power
output (BTL 30 W), low distortion and low noise are re-
alized. High reliability is obtained due to various kinds
of protectors built in. Furthermore, on-off of output is
possible from standby terminal.
φ3.6
R1.8
■ Features
• High power output
• Low distortion, Low noise
• Low shock noise when power supply is turned-on, off
• Built-in standby function
(12.5)
(1.2)
19.1±0.3
21.9±0.3
• Built-in protection circuits
(Temperature, Overcurrent, Load short circuit, Output -
GND short circuit)
HSIP012-P-0000A
■ Applications
• Stereo, Karaoke, TV
■ Block Diagram
10
6
SEPP
output circuit
Input circuit
Driver circuit
1
5
Protection circuits for Temp. Overcurrent,
Load short, Output-GND short
Ripple filter
Input circuit
7
SEPP
Driver circuit
output circuit
1
AN7164
ICs for Audio Common Use
■ Pin Descriptions
Pin No.
Description
Pin No.
Description
Output (ch.1)
1
2
3
4
5
6
Ripple filter
7
8
Negative feedback (ch.2)
GND (Input side)
Negative feedback (ch.1)
Input
Bootstrap (ch.1)
GND (output side)
Output (ch.2)
9
10
11
12
Bootstrap (ch.2)
Standby
Supply voltage (VCC)
■ Absolute Maximum Ratings
Parameter
Symbol
VCC
ICC
Rating
Unit
2
Supply voltage *
30
5.0
V
A
Supply current
3
Power dissipation *
PD
62.5
W
°C
°C
1
Operating ambient temperature *
Topr
Tstg
−30 to +75
−55 to +150
1
Storage temperature *
Note) 1 : T = 25°C except power dessipation, operating ambient temperature and storage temperature.
*
a
2 : Without signal
*
*
3 : θj-c = 2.0 (°C/W)
■ Recommended Operating Range
Parameter
Supply voltage
Symbol
VCC
Range
Unit
8.3 to 24
V
■ Electrical Characteristics at VCC = 21 V, RL = 8 Ω, f = 1 kHz, BTL operation, Ta = 25°C
Parameter
Quiescent current
Symbol
ICQ
Conditions
Min
Typ Max Unit
VIN = 0 V
Rg = 10 kΩ
55
0.85
0
100
1.3
mA
mV
mV
%
Output noise voltage *1
Output offset voltage
Total harmonic distortion
Voltage gain
VNO
VOFF SET VIN = 0 V
THD PO = 1 W
300
0.3
0.07
GV
PO
PO = 1 W
49.5 51.5 53.5
dB
W
Maximum output power
Ripple rejection ratio *1, 2
Standby current
THD = 10%
24
45
30
51
R.R.
ISTB
Rg = 0 Ω, power supply ripple
Pin 6 open
dB
µA
3
Note) 1 : Measurement through the DIN audio filter.
*
2 : Power supply ripple ······ 120 Hz Sine wave, 1V[rms]
*
2
ICs for Audio Common Use
AN7164
■ Usage Notes
Standby-on (i.e. an application of 5 V to pin 6) under a high temperature may cause no-output due to the malfunction
of rapid discharging circuit of the ripple filter. To avoid this, it is necessary to forcibly flow a current of 1 mA into pin 1
at standby-on.
■ Technical Information
• PD
Ta curves of HSIP012-P-0000A
PD
Ta
65
62.5
60
Infinite heat sink
Rth (j−c) = 2°C/W
Rth (j−a) = 42°C/W
55
50
45
1°C/W heat sink
41.7
40
35
31.3
30
2°C/W heat sink
3°C/W heat sink
5°C/W heat sink
25
20
17.9
15
10°C/W heat sink
10.4
10
5
Without heat sink
3.0
0
0
25
50
75
100
125
150
Ambient temperature Ta (°C)
■ Application Circuit Example
2 kΩ
V
CC = 21 V
100 µF
1 000 µF
2
11
10
0.047 µF
220 Ω
100 µF
100 µF
4
5
3
2.2 Ω
8 Ω
0.1 µF
1 µF
7
8
VIN
100 µF 2.2 Ω
0.1 µF
5V
0V
3
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