TDA7564B Datasheet, PDF (10/34 Pages) STMicroelectronics – 4 x 50W multifunction quad power amplifier with built-in diagnostics features

Electrical specifications
TDA7564B
Table 4.
Symbol
Electrical characteristics (continued)
Parameter
Test Condition
Min. Typ. Max. Unit
Turn on diagnostics 1 (Power amplifier mode)
Pgnd
Pvs
Pnop
Lsc
Lop
Short to GND det. (below this
limit, the output is considered in
short circuit to GND)
Short to Vs det. (above this limit,
the output is considered in short
circuit to V_S)
Normal operation thresholds.
(Within these limits, the output is
considered without faults).
Power Amplifier in st-by
Shorted load det.
Open load det.
Lnop Normal load det.
Turn on diagnostics 2 (Line driver mode)
Vs -1.2
1.8
85
1.5
1.2
V
V
Vs -1.8 V
0.5
Ω
Ω
45
Ω
Pgnd
Pvs
Pnop
Lsc
Lop
Lnop
Short to GND det. (below this
limit, the output is considered in Power Amplifier in st-by
short circuit to GND)
Short to Vs det. (above this limit,
the output is considered in short
circuit to VS)
Normal operation thresholds.
(Within these limits, the output is
considered without faults).
Shorted load det.
Open load det.
Normal load det.
Permanent diagnostics 2 (Power amplifier mode or line driver mode)
Vs -1.2
1.8
330
7
1.2
V
V
Vs -1.8 V
2
Ω
Ω
180
Ω
Pgnd
Short to GND det. (below this
limit, the output is considered in
short circuit to GND)
1.2
V
Short to Vs det. (above this limit, Power Amplifier in Mute or Play,
Pvs the output is considered in short one or more short circuits
Vs -1.2
V
circuit to VS)
protection activated
Pnop
Normal operation thresholds.
(within these limits, the output is
considered without faults).
1.8
Vs -1.8 V
L_SC Shorted load det.
Pow. Amp. mode
Line Driver mode
0.5
Ω
2
Ω
V_O Offset detection
Power Amplifier in play,
AC Input signals = 0
±1.5 ±2 ±2.5
V
I_NLH Normal load current detection V_O < (V_S - 5)pk IB2 (D7) = 0
500
mA
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