TDA7375 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

TDA7375

2 x 35W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO

STMicroelectronics 

Figure 24: Fault Waveforms

TDA7375

ST-BY PIN

VOLTAGE

2V

t

OUT TO Vs SHORT

OUTPUT

WAVEFORM

SOFT SHORT

t

OUT TO GND SHORT

Vpin 10

CORRECT TURN-ON

FAULT DETECTION

CHECK AT TURN-ON

(TEST PHASE)

D94AU149A

t

SHORT TO GND

OR TO Vs

TION

As various kinds of information is available at the

same pin (clipping detection, output fault, thermal

proximity), this signal must be handled properly in

Figure 25: Waveforms

order to discriminate each event.

This could be done by taking into account the dif-

ferent timing of the diagnostic output during each

case.

ST-BY PIN

VOLTAGE

Vs

OUTPUT

WAVEFORM

Vpin 10

WAVEFORM

t

t

D94AU150

t

CLIPPING

SHORT TO GND THERMAL

OR TO Vs

PROXIMITY

11/15

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