TDA7575PD datasheet(10/17 Pages) STMICROELECTRONICS

Part #	TDA7575PD

Description	MULTIFUNCTION DUAL BRIDGE POWER AMPLIFIER WITH INTEGRATED DIGITAL DIAGNOSTICS

PDF	17 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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10 / 17 page

TDA7575PD

10/17

If R/W = 1, the TDA7575PD sends 2 "Diagnostics Bytes" to

µP: DB1 and DB2.

DB1

DB2

Thermal warming (if Tchip

≥ 150°C, D7 = 1)

Diag. cycle not activated or not terminated (D6 = 0)

Diag. cycle terminated (D6 = 1)

Channel 1

Turn-on diagnostic (D4 = 0)

Permanent diagnostic (D4 = 1)

Channel 1

Normal load (D3 = 0)

Short load (D3 = 1)

Channel 1

Turn-on diag.: No open load (D2 = 0)

Open load detection (D2 = 1)

Offset diag.: No output offset (D2 = 0)

Output offset detection (D2 = 1)

Channel 1

No short to Vcc (D1 = 0)

Short to Vcc (D1 = 1)

Channel 1

No short to GND (D1 = 0)

Short to GND (D1 = 1)

Offset detection not activated (D7 = 0)

Offset detection activated (D7 = 1)

Channel 2

Turn-on diagnostic (D4 = 0)

Permanent diagnostic (D4 = 1)

Channel 2

Normal load (D3 = 0)

Short load (D3 = 1)

Channel 2

Turn-on diag.: No open load (D2 = 0)

Open load detection (D2 = 1)

Permanent diag.: No output offset (D2 = 0)

Output offset detection (D2 = 1)

Channel 2

No short to Vcc (D1 = 0)

Short to Vcc (D1 = 1)

Channel 2

No short to GND (D1 = 0)

Short to GND (D1 = 1)

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