AN7194K [PANASONIC]
Dual BTL 50 W single power supply class-H power amplifier IC; 双BTL 50W的单电源供电H类功放IC
| 型号： | AN7194K |
| 厂家： | 
PANASONIC |
| 描述： | Dual BTL 50 W single power supply class-H power amplifier IC |
| 文件： | 总4页 (文件大小：55K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Audio Common Use
AN7194K, AN7194Z
Dual BTL 50 W single power supply class-H power amplifier IC
■ Overview
AN7194K
11.3±0.3
7.7±0.3
The AN7194K and AN7194Z are single power sup-
ply, BTL, audio class-H power amplifier ICs. A class-H
power amplifier can be made up when this ICs are used in
combination with the AN7077Z which is separately mar-
ket-available, and it is possible to make a low consump-
tion power system. Also, the AN7194K and AN7194Z
are incorporating various protection circuits, so that those
ICs contribute to the high reliability design of set.
φ3.6
R1.8
3.5±0.2
(12.5)
R0.7
(1.2)
■ Features
(14.1)
(17.63)
(18.7)
(21.5)
• Incorporating various protection circuits :
Thermal protection, load short-cirucit, short circuit to
HZIP016-P-0665B
VCC and short circuit to GND, overvoltage.
AN7194Z
• Built-in stand-by function
10.0±0.30
(Free from shock noise when standby turns-on/off)
• Built-in muting function
Free from shock noise at mute-on/off
Adapting attenuator method so that abnormal sound is
not generated due to waveform deformation
Attack time, recovery time are 20 ms or less
• Reduction in external components
NF and BS electrolytic capacitors are needless
RF electrolytic capacitor is needless
External muting function is needless
• OR output terminal is provided
13.25±0.30
15.65±0.50
18.95±0.50
2.40±0.50
3.25±0.10
• Designed for headphone use
• The AN7194K is of a 16-pin and the AN7194Z is of a
15-pin package
HZIP015-P-0745A
■ Applications
• Miniature audio component, CD player radio cassette,
karaoke are other audio equipment
1
AN7194K, AN7194Z
ICs for Audio Common Use
■ Block Diagram
1
12
2
VCC
OR
15
Ripple filter
34 dB
34 dB
4
13
1/2
34 dB
34 dB
■ Pin Descriptions
Pin No.
Description
Pin No.
Description
OR output
1
2
3
4
5
6
7
8
Power supply
Ch.1 output (−)
9
10
11
12
13
14
15
16
GND
Grounding (output ch.1)
Ch.1 output (+)
Stand-by
Ch.2 input
N.C.
Ch.2 output (+)
Grounding (output ch.2)
Ch.2 output (−)
N.C. (for the AN7194K only)
Ch.1 input
Muting
Middle point (1/2 VCC
)
■ Absolute Maximum Ratings
Parameter
Symbol
VCC
Rating
Unit
V
Supply voltage
26
9.0
Supply current
ICC
A
2
Power dissipation *
PD
AN7194K
AN7194Z
37.5
W
68.2
1
Operating ambient temperature *
Topr
Tstg
−25 to +75
−55 to +150
°C
°C
1
Storage temperature *
Note) 1 : All items are at T = 25°C, except for the operating ambient temperature and storage temperature.
*
a
2 : The value when Rth(j-c) = 1.1°C/W, and Ta = 75°C
*
■ Recommended Operating Range
Parameter
Supply voltage
Symbol
VCC
Range
Unit
6.0 to 24.0
V
2
ICs for Audio Common Use
AN7194K, AN7194Z
■ Electrical Characteristics at VCC = 12 V, f = 1 kHz, Ta = 25°C
Parameter
Quiescent current
Symbol
ICQ
Conditions
VIN = 0 mV, RL = 6 Ω
VIN = 0 mV, RL = 6 Ω
Min
Typ Max Unit
150
1
250
10
mA
Standby current
Output noise voltage *
Voltage gain
ISTB
µA
1
VNO
GV
RG = 10 kΩ
,
RL = 6 Ω
0.22
40
0.5 mV[rms]
VIN = 24.5 mV, RL = 6 Ω
38
42
dB
%
Total harmonics distortion
Maximum output power 1
Maximum output power 2 *
THD VIN = 24.5 mV, RL = 6 Ω
0.2
10
0.6
PO1
PO2
RR
THD = 10%, RL = 6 Ω
THD = 10%, RL = 6 Ω
8
W
W
dB
2
30
45
44
1
Ripple rejection ratio *
RL = 6 Ω, RG = 10 kΩ
60
VR = 1 V[rms], fR = 1 kHz
1
Channel balance *
CB
CT
VIN = 24.5 mV, RL = 6 Ω
−1
50
0
1
dB
dB
1
Cross-talk *
VIN = 24.5 mV, RL = 6 Ω, RG = 10 kΩ
60
0
Output offset voltage
VOFF
MT
RG = 10 kΩ
,
RL = 6 Ω
−300
60
300
50
mV
dB
1
Muting effect *
VIN = 24.5 mV, RL = 6 Ω
82
Standby terminal voltage
ICQ-STB VIN = open, VSTB = 5 V
µA
Note) 1 : Measurement using a bandwidth 15 Hz to 30 kHz (12 dB/OCT) filter.
*
2 : VCC = 24 V
*
■ Usage Notes
1. Always attach an outside heat sink when using the chip. In addition, the outside heat sink must be fastened onto
a chassis for use.
2. Connect the cooling fin to GND potential.
3. Avoid short circuit to VCC and short circuit to GND, and load short-circuit.
4. The temperature protection circuit will be actuated at Tj = approx. 150°C.
However, it is automatically reset when the chip temperature drops below the above set level.
5. The overvoltage protection circuit starts its operation at VCC = approx. 26 V.
6. For the standby voltage, a stabilized power supply of 3 V or higher should be used.
7. Only when being used in combination with the AN7077Z, this IC can operate up to the supply voltage of approx.
25.4 V which is the maximum output voltage of the AN7077Z.
3
AN7194K, AN7194Z
ICs for Audio Common Use
■ Technical Information
• PD
Ta curves of packages
Note) After fixing all of the lead wires to printed circuit board by soldering, use the IC after fixing the printed circuit board and
the cooling fin of the IC.
• AN7194K (HZIP016-P-0665B)
PD Ta
• AN7194Z (HZIP015-P-0745A)
PD Ta
85
80
75
70
85
80
75
Rth (j−c) = 2°C/W
th (j−a) = 48°C/W
Rth (j−c) = 1.1°C/W
th (j−a) = 68.3°C/W
R
R
Infinity heat sink
70
68.2
65
65
62.5
60
Infinity heat sink
1°C/W heat sink
60
5
5
50
50
45
41.7
40
45
41.0
40
1°C/W heat sink
2°C/W heat sink
3°C/W heat sink
35
31.3
30
35
31.5
30
2°C/W heat sink
3°C/W heat sink
5°C/W heat sink
25
25
21.7
20
5°C/W heat sink
10°C/W heat sink
20
17.9
15
10.4
10
15
12.7
10
10°C/W heat sink
Without heat sink
25
5
0
5
2.6
0
0
25
50
75
100
125
150
0
50
75
100
125
150
Ambient temperature Ta (°C)
Ambient temperature Ta (°C)
■ Application Circuit Example
1
12
47 µF
2
15
2.2 Ω
2.2 Ω
0.22 µF
0.22 µF
13
4
2.2 Ω
2.2 Ω
0.22 µF
0.22 µF
5 V ± 0.5 V
TH = 3.5 V
5 V ± 0.5 V
VTH = 2.8 V
V
4
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