PANASONIC AN7194

ICs for Audio Common Use
AN7194K, AN7194Z
Dual BTL 50 W single power supply class-H power amplifier IC
AN7194K
11.3±0.3
7.7±0.3
1
29.6±0.3
1.45±0.15
(0.6)
1.2+0.1
(1.1)
1.788 (0.889)
(10.0)
29.75±0.3
28.0±0.3
20.0±0.3
R1.8
(12.5)
+0.10
0.25 -0.05
(1.2)
(14.1)
(17.63)
(18.7)
(21.5)
1.80±0.15
R0.7
■ Features
3.5±0.2
HZIP016-P-0665B
3.25±0.10
19.00±0.30
19.30±0.30
1.27
2.40±0.50
(2.54)
+0.15
0.25–0.05
13.25±0.30
15.65±0.50
18.95±0.50
(1.95)
(1.80)
1.50±0.10
1
φ3.60±0.10
18.00±0.30
13.50±0.30
+0.20
0.50–0.10
15
10.0±0.30
(0.61)
AN7194Z
4.00±0.20
• Incorporating various protection circuits :
Thermal protection, load short-cirucit, short circuit to
VCC and short circuit to GND, overvoltage.
• Built-in stand-by function
(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
• Designed for headphone use
• The AN7194K is of a 16-pin and the AN7194Z is of a
15-pin package
(0.889)
φ3.6
(2.54)
(10.0)
0.6 +0.15
-0.10
16
The AN7194K and AN7194Z are single power supply, 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 market-available, and it is possible to make a low consumption power system. Also, the AN7194K and AN7194Z
are incorporating various protection circuits, so that those
ICs contribute to the high reliability design of set.
R0.55
■ Overview
HZIP015-P-0745A
■ Applications
• Miniature audio component, CD player radio cassette,
karaoke are other audio equipment
1
AN7194K, AN7194Z
ICs for Audio Common Use
9
8
1/2 VCC
■ Block Diagram
1
12
OR
2
VCC
15
Ripple filter
34 dB
34 dB
13
4
1/2
14
GND
10
GND
7
11
34 dB
6
5
3
34 dB
■ Pin Descriptions
Pin No.
Description
Pin No.
Description
1
Power supply
9
OR output
2
Ch.1 output (−)
10
GND
3
Grounding (output ch.1)
11
Ch.2 input
4
Ch.1 output (+)
12
N.C.
5
Stand-by
13
Ch.2 output (+)
6
Ch.1 input
14
Grounding (output ch.2)
7
Muting
15
Ch.2 output (−)
8
Middle point (1/2 VCC)
16
N.C. (for the AN7194K only)
■ Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
VCC
26
V
ICC
9.0
A
AN7194K
37.5
W
AN7194Z
68.2
Supply voltage
Supply current
Power dissipation
*2
PD
Operating ambient temperature
Storage temperature
*1
*1
Topr
−25 to +75
°C
Tstg
−55 to +150
°C
Note) *1 : All items are at Ta = 25°C, except for the operating ambient temperature and storage temperature.
*2 : The value when Rth(j-c) = 1.1°C/W, and Ta = 75°C
■ Recommended Operating Range
Parameter
Supply voltage
2
Symbol
Range
Unit
VCC
6.0 to 24.0
V
ICs for Audio Common Use
AN7194K, AN7194Z
■ Electrical Characteristics at VCC = 12 V, f = 1 kHz, Ta = 25°C
Parameter
Symbol
Quiescent current
Standby current
Output noise voltage
*1
Voltage gain
Total harmonics distortion
Maximum output power 1
Maximum output power 2
Ripple rejection ratio
*1
Channel balance *1
Cross-talk
*1
Output offset voltage
Muting effect
*1
Standby terminal voltage
*2
Conditions
Min
Typ
Max
Unit
ICQ
VIN = 0 mV, RL = 6 Ω

150
250
mA
ISTB
VIN = 0 mV, RL = 6 Ω

1
10
µA
VNO
RG = 10 kΩ, RL = 6 Ω

0.22
0.5
mV[rms]
GV
VIN = 24.5 mV, RL = 6 Ω
38
40
42
dB
THD
VIN = 24.5 mV, RL = 6 Ω

0.2
0.6
%
PO1
THD = 10%, RL = 6 Ω
8
10

W
PO2
THD = 10%, RL = 6 Ω
30
44

W
RR
RL = 6 Ω, RG = 10 kΩ
VR = 1 V[rms], fR = 1 kHz
45
60

dB
CB
VIN = 24.5 mV, RL = 6 Ω
−1
0
1
dB
CT
VIN = 24.5 mV, RL = 6 Ω, RG = 10 kΩ
50
60

dB
−300
0
300
mV
VOFF
RG = 10 kΩ, RL = 6 Ω
MT
VIN = 24.5 mV, RL = 6 Ω
60
82

dB
VIN = open, VSTB = 5 V


50
µA
ICQ-STB
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  T a
• AN7194Z (HZIP015-P-0745A)
PD  T a
85
85
Rth (j−c) = 2°C/W
80
Rth (j−a) = 48°C/W
75
75
70
65 Infinity heat sink
62.5
60
Power dissipation PD (W)
Power dissipation PD (W)
Rth (j−c) = 1.1°C/W
Rth (j−a) = 68.3°C/W
80
5
50
45
41.7 1°C/W heat sink
40
35
31.3 2°C/W heat sink
30
25 3°C/W heat sink
20 5°C/W heat sink
17.9
15
10.4 10°C/W heat sink
10
70 Infinity heat sink
68.2
65
1°C/W heat sink
60
5
50
45
41.0 2°C/W heat sink
40
35
31.5
30
3°C/W heat sink
25
21.7
20
5°C/W heat sink
15 10°C/W heat sink
12.7
10
5
5 Without heat sink
2.6
0
0
25
50
0
75
100
125
0
150
25
50
75
100
125
150
Ambient temperature Ta (°C)
Ambient temperature Ta (°C)
9
8
■ Application Circuit Example
1
12
47 µF
2
15
2.2 Ω
2.2 Ω
0.22 µF
0.22 µF
13
4
4
7
10 µF
4.7 kΩ
Mute
VIN2
10 kΩ
VIN1
10 kΩ
6
150 kΩ
5
STB
10 µF
5 V ± 0.5 V
VTH = 3.5 V
5 V ± 0.5 V
VTH = 2.8 V
14
0.22 µF
10
0.22 µF
11
2.2 Ω
3
2.2 Ω