AN7196Z Просмотр технического описания (PDF) - Panasonic Corporation

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AN7196Z

Dual 15 W BTL power IC for car audio

Panasonic Corporation 

AN7196Z

ICs for Audio Common Use

s Terminal Equivalent Circuits (continued)

Pin No.

Equivalent circuit

13

1

Drive circuit

Pre-amp.

13

Description

Ch.2 output pin (−)

Ch.2 inverted-phase output pin

Drive circuit VREF = 6.6 V

15

15 kΩ

600 Ω

DC Voltage

6.6 V

14

15

1

14

15



Drive circuit

GND(output)

Pre-amp.

Grounding pin for ch.2 output

Ch.2 Output pin (+)

Ch.2 positive-phase output pin

Drive circuit VREF = 6.6 V

15 kΩ

600 Ω

0V

6.6 V

s Usage Notes

1. Always attach an outside heat sink to use 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 faults, 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

characteristics such as distortion, etc. will be improved.

6

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