TDA7563A STMicroelectronics, TDA7563A Datasheet - Page 18

• Manufacturer Part Number: TDA7563A
• Description: IC AMP QUAD MULTIFUNC FLEXIWATT2
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TDA7563A

• Output Type: 4-Channel (Quad)
• Max Output Power X Channels @ Load: 75W x 4 @ 2 Ohm
• Voltage - Supply: 8 V ~ 18 V
• Features: I²C, Mute, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Through Hole
• Package / Case: 27-Flexiwatt (bent and staggered leads)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Output DC offset detection
4.2
18/35
Figure 27. Current detection: Load impedance |Z| vs. output peak voltage
Multiple faults
When more misconnections are simultaneously in place at the audio outputs, it is
guaranteed that at least one of them is initially read out. The others are notified after
successive cycles of I
This is true for both kinds of diagnostic (Turn on and Permanent).
The table below shows all the couples of double-fault possible. It should be taken into
account that a short circuit with the 4 ohm speaker unconnected is considered as double
fault.
Table 4.
S. GND (so) / S. GND (sk) in the above table make a distinction according to which of the 2
outputs is shorted to ground (test-current source side= so, test-current sink side = sk). More
precisely, in Channels LF and RR, so = CH+, sk = CH-; in Channels LR and RF, so = CH-, sk
= CH+.
In Permanent Diagnostic the table is the same, with only a difference concerning Open
Load(*), which is not among the recognizable faults. Should an Open Load be present
during the device's normal working, it would be detected at a subsequent Turn on Diagnostic
cycle (i.e. at the successive Car Radio Turn on).
S. Across L.
S. GND (so)
S. GND (sk)
Open L.
S. Vs
Load |z| (Ohm)
50
30
20
10
5
3
2
1
Double fault table for turn on diagnostic
1
Low current detection area
S. GND (so)
D5 = 1 of the DBx byres
S. GND
(Open load)
2
C reading and faults removal, provided that the diagnostic is enabled.
/
/
/
/
2
3
S. GND (sk)
S. GND
S. GND
Vout (Peak)
/
/
/
4
High current detection area
D5 = 0 of the DBx bytes
(Normal load)
5
S. Vs + S. GND
S. Vs
S. Vs
S. Vs
6
/
/
7
S. Across L.
S. Across L.
S. GND
8
S. GND
S. Vs
Iout (peak) <250mA
Iout (peak) >500mA
/
Open L. (*)
Open L. (*)
TDA7563A
Open L.
S. GND
S. Vs
N.A.