LV47009P 查看數據表（PDF） - SANYO -> Panasonic

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LV47009P

Monolithic Linear IC For Car Audio Systems 4-Channel BTL Power Amplifier

SANYO -> Panasonic 

LV47009P

3. ACGND pin (pin 16)

The capacitor of the pin 16 must use the same capacitance value as the input capacitor.

Also, connect to the same PREGND as the input capacitor.

4. Self-diagnostics function (pin 25)

This function can detect of the unusual state.

(1) Shorting to VCC/Shorting to ground

(2) Load shorting

(3) Output clip detection

: The pin 25 becomes the low level.

: The pin 25 is alternated between the low level and the high level

according to the output signal.

: when the output voltage clip, the pin 25 becomes the low level.

* Note: The output offset abnormality is thought of as the leakage current of the input capacitor.

In addition, the pin 25 has become the NPN open collector output (active low).

The pin 25 must be left open when this function is not used.

Output

Voltage

Output Waveform

0V

Pin 25

Voltage

time

Clip

Detection

time

Fig3 Self-diagnosis Function Diagram

5V

R2

25

DIAG

No.A1959-5/11

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