TDA7564BPD 查看數據表（PDF） - STMicroelectronics

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TDA7564BPD

4 x 50W multifunction quad power amplifier with built-in diagnostics features

STMicroelectronics 

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 VS)

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

LSC Shorted load det.

Pow. Amp. mode

Line Driver mode

0.5

Ω

2

Ω

VO Offset detection

Power Amplifier in play,

AC Input signals = 0

±1.5 ±2 ±2.5

V

INLH Normal load current detection VO < (VS - 5)pk IB2 (D7) = 0

500

mA

10/34

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