TDA7577BLVPD datasheet(33/43 Pages) STMICROELECTRONICS

Il numero della parte	TDA7577BLVPD

Spiegazioni elettronici	2 x 75 W dual-bridge power amplifier with I2C complete diagnostics and

PDF	43 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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TDA7577BLV

Software specifications

10.1

Examples of bytes sequence

1 - Turn-on diagnostic - Write operation

2 - Turn-on diagnostic - Read operation

The delay from 1 to 2 can be selected by software, starting from 1 ms

3a - Turn-on of the power amplifier with mute on, diagnostic defeat.

3b - Turn-off of the power amplifier

4 - Offset detection procedure enable

5 - Offset detection procedure stop and reading operation (the results are valid only for the

offset detection bits (D2 of the bytes DB1, DB2).



The purpose of this test is to check if a D.C. offset (2 V typ.) is present on the outputs,

produced by input capacitor with anomalous leakage current or humidity between pins.



The delay from 4 to 5 can be selected by software, starting from 1 ms.

Start Address byte with D0 = 0

ACK

IB1 with D6 = 1

ACK

IB2

ACK

STOP

Start

Address byte with D0 = 1

ACK

DB1

ACK

DB2

ACK

STOP

Start

Address byte with D0 = 0

ACK

IB1

ACK

IB2

ACK

STOP

X000XXXX

XXX1XX1X

Start

Address byte with D0 = 0

ACK

IB1

ACK

IB2

ACK

STOP

X0XXXXXX

XXX0XXXX

Start

Address byte with D0 = 0

ACK

IB1

ACK

IB2

ACK

STOP

XX1XX1XX

XXX1XXXX

Start

Address byte with D0 = 1

ACK

DB1

ACK

DB2

ACK

STOP

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