TDA7575 Просмотр технического описания (PDF) - STMicroelectronics

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производитель

TDA7575

MULTIFUNCTION DUAL BRIDGE POWER AMPLIFIER WITH INTEGRATED DIGITAL DIAGNOSTICS

STMicroelectronics 

TDA7575

If R/W = 1, the TDA7575 sends 2 "Diagnostics Bytes" to µP: DB1 and DB2.

DB1

D7

Thermal warming (if Tchip ≥ 150°C, D7 = 1)

D6

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

Diag. cycle terminated (D6 = 1)

D5

X

Channel 1

D4

Turn-on diagnostic (D4 = 0)

Permanent diagnostic (D4 = 1)

Channel 1

D3

Normal load (D3 = 0)

Short load (D3 = 1)

Channel 1

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

D2

Open load detection (D2 = 1)

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

Output offset detection (D2 = 1)

Channel 1

D1

No short to Vcc (D1 = 0)

Short to Vcc (D1 = 1)

Channel 1

D0

No short to GND (D1 = 0)

Short to GND (D1 = 1)

DB2

D7

D6

D5

D4

D3

D2

D1

D0

Offset detection not activated (D7 = 0)

Offset detection activated (D7 = 1)

X

X

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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