E-TDA7476013TR STMicroelectronics, E-TDA7476013TR Datasheet - Page 12

• Manufacturer Part Number: E-TDA7476013TR
• Description: IC PROCESSOR RADIO DIAGN 24-SOIC
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of E-TDA7476013TR

• Applications: Automotive Audio
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7476
READ BYTE 1
READ BYTE 2
READ BYTE 3
When the P reads correctly all the 3 bytes containing the mentioned information and gives the last acknowl-
edge, the TDA7476 switches to the "permanent diagnostic operation"
B) PERMANENT DIAGNOSTIC
Here following is the permanent diagnostic output Data Bytes. The bits D7 and D6 of the first byte both stand at
0 level. This condition, although not possible during the turn-on diagnostic, can be useful to confirm that the
bytes are referred to the permanent diagnostic.
12/19
MSB
It can sense the following diagnostic information:
CH1, CH2, CH3, CH4, CH5
- Short Circuit to GND
- Short Circuit to Vs
Aux1, Aux2
- Short Circuit to GND (*)
- Open Load (*)
(*) Detected if the high side drivers attached to the Aux outputs are ON.
In this case the above conditions are not detected while the single infrasonic current pulse is present but be-
fore. The fault condition must be present for more than 2sec. (typ) and must be also true during the pulse,
where the data are memorized and then transmitted.The bytes from/to P and TDA7476 are the same as
those in case of turn-on diagnostic (see above).
D7
X
X
X
X
X
X
X
X
X
X
X
X
1
1
1
0
1
1
1
0
1
1
1
0
D6
X
X
X
X
X
X
X
X
X
X
X
X
1
1
0
1
1
1
0
1
1
1
0
1
D5
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
1
0
1
1
0
1
1
D4
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
1
0
1
1
0
1
1
D3
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
1
1
0
1
1
1
0
1
0
D2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
1
0
1
1
1
0
1
0
1
D1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
1
0
1
1
1
0
LSB
D0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
1
0
1
1
0
1
CH1 short circuit to Vs
CH1 short circuit to GND
CH1 open load
CH1 short circuit across the load
CH2 short circuit to Vs
CH2 short circuit to GND
CH2 open load
CH2 short circuit across the load
CH3 short circuit to Vs
CH3 short circuit to GND
CH3 open load
CH3 short circuit across the load
CH4 short circuit to Vs
CH4 short circuit to GND
CH4 open load
CH4 short circuit across the load
AUX1 short circuit to GND
AUX1 open load
AUX2 short circuit to GND
AUX2 open load
CH5 short circuit to Vs
CH5 short circuit to GND
CH5 open load
CH5 short circuit across the load
STATUS