TDA7577BLVPD datasheet(12/43 Pages) STMICROELECTRONICS

12 / 43 page

Electrical specifications

TDA7577BLV

12/43

DocID025375 Rev 5

Lnop

Normal load det.

Power amplifier in standby

4.5

180

Permanent diagnostics (Power amplifier mode or line driver mode)

Pgnd

Short to GND det. (below this limit,

the Output is considered in Short

Circuit to GND)

Power amplifier in Mute or Play

condition, one or more short

circuits protection activated

1.2

Pvs

Short to Vs det. (above this limit, the

Output is considered in Short Circuit

to VS)

Vs -

0.9

Pnop

Normal operation

thresholds.(Within these limits, the

Output is considered without faults).

1.8

Vs -

1.5

Lsc

Shorted load det.

Pow. amp. mode

0.5

Line driver mode

1.5

Offset detection

Power amplifier in play condition

AC input signals = 0

±1.5

±2

±2.5

INLH

Normal load current detection

VO < (VS - 5)pk IB2 (D0) = 0

500

INLL

Normal load current detection

VO < (VS - 5)pk IB2 (D0) = 1

250

IOLH

Open load current detection

VO < (VS - 5)pk IB2 (D0) = 0

250

IOLL

Open load current detection

VO < (VS - 5)pk IB2 (D0) =1

125

I2C bus interface

fSCL

Clock frequency

400

kHz

VIL

Input low voltage

1.5

VIH

Input high voltage

2.3

1. Saturated square wave output.

2. Voltage ramp on Mute pin:

from 350 mV to 3.05 V in 40 ms.

In case of I2C interface enabled command IB1(D2)=1 (Mute->Unmute) must be transmitted before to start the voltage ramp

on Mute pin.

3. Voltage ramp on Mute pin:

from 2.8 V to 1.2 Vin 40 ms.

In case of I2C interface enabled the I2C command IB1(D2)=0 (Unmute->Mute) must be NOT transmitted before to start the

voltage ramp on Mute pin.

4. ST-BY pin high enables the I2C bus; ST-BY pin low enables ST-BY condition: detailed pin levels description is contained in

paragraph 'I2C habilitation settings' .

Table 4. Electrical characteristics (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

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