TDA7575B datasheet(18/32 Pages) STMICROELECTRONICS

部品番号	TDA7575B

部品情報	2 x 75W multifunction dual-bridge power amplifier with integrated digital diagnostics

PDF	32 Pages

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メーカー	STMICROELECTRONICS [STMicroelectronics]

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18 / 32 page

I2C bus interface

TDA7575B

18/32

I2C PIN (PIN16) < 1.5V: I2C bus interface deactivated

I2C PIN (PIN16) > 2.5V: I2C bus interface activated

It is also possible to let I2C PIN floating to deactivate the I2C bus interface, or to short I2C

PIN to VCC to activate it.

In particular:

I2C ENABLED: I2C pin (PIN16) > 2.5V

–

STD MODE: Vstby (PIN5) > 3.5V, IB2(D1)=0

–HE MODE: Vstby (PIN5) > 3.5V, IB2(D1)=1

–PLAY MODE: Vmute (pin 4) >3.5V, IB1 (D2) = 1

The amplifier can always be switched off by putting Vstby to 0V, but with I

2C enabled it can

be turn on only through I2C (with Vstby>3.5V).

I2C DISABLED: I2C pin (PIN16) < 1.5V

–

STD MODE: 3.5V < st-by (PIN5) < 5

–HE MODE: Vstby (PIN5) > 7V

–PLAY MODE: Vmute (pin 4) >3.5V

For both STD and HE MODE the play/mute mode can be set acting on Vmute pin.

When I2C BUS is disabled, when a fault is detected PIN 14 (CD-OUT) is pulled down by the

internal logic circuitry. The faults detected are the short circuit to ground, to VCC and across

the load (after an aver current detection).

TDA7575B データシート(PDF) 18 Page - STMicroelectronics