HA13156 データシートの表示（PDF） - Hitachi -> Renesas Electronics

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HA13156

38 W × 4-Channel BTL Power IC

Hitachi -> Renesas Electronics 

Note: 1. Standby

Power is turned on when a signal of 3.5 V or 0.05 mA is impressed at pin 2.

When pin 2 is open or connected to GND, standby is turned on (output off).

5V

2

37.5 k

23.5 k

Q1 ON

↓

BIAS ON

HA13156

2. Muting

Muting is turned off (output off) when a signal of 3.5 V or 0.2 mA is impressed at pin 10.

When pin 10 is open or connected to GND, muting is turned on (output off).

5V

10

25 k

Q2 ON

↓

MUTE ON

3. DC-DC converter (Booster)

DC-DC converter (Booster) in IC is turned on when a signal of 3.5 V over or 0.04 mA over is

impressed at pin 13, and get large max output power.

When pin 13 is open or connected to GND, DC-DC converter (Booster) is turned off.

This IC is generated noise, because built-in DC-DC converter (Booster).

Consequently if you use radio tuner (AM), I recommend DC-DC converter (Booster) off.

5V

13

30 k

20 k

Q3 ON

↓

Booster ON

3

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