AN7190 データシートの表示（PDF） - Panasonic Corporation
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AN7190 Datasheet PDF : 5 Pages
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AN7190NK, AN7190NZ
ICs for Audio Common Use
s Usage Notes
1. Always attach an outside heat sink when using the chip. Note that, 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, but 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. 20 V.
6. Take into consideration the heat radiation design particularly when VCC is set high or when the load is 2 Ω.
7. When the beep sound function is not used, open the beep sound input pin (pin 10) or connect it to pin 9 with around
0.01 µF capacitor.
8. Connect only pin 9 (ground, signal source) to the signal GND of the amplifier in the previous stage. The character-
istics such as distortion, etc. will improve.
s Technical Information
• PD Ta curves of packages
• HZIP016-P-0665A (AN7190NK)
PD Ta
65 Infinite heat sink
62.5
60
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 2°C/W heat sink
30
3°C/W heat sink
25
20 5°C/W heat sink
17.9
15
10.4 10°C/W heat sink
10
5 Without heat sink
3.0
0
0
25
50
75
100
125
150
Ambient temperature Ta (°C)
• HZIP015-P-0745A (AN7190NZ)
PD Ta
120
Infinite heat sink
113.6
Rth (j−c) = 1.1°C/W
Rth (j−a) = 68.3°C/W
100
80
60 1°C/W heat sink
59.5
40.3 2°C/W heat sink
40
30.5 3°C/W heat sink
20.5 5°C/W heat sink
20
10°C/W heat sink
11.3
1.8 Without heat sink
0
0
25
50
75
100
125
150
Ambient temperature Ta (°C)
4
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