TDA7375A View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7375A

2 x 37W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO

STMicroelectronics 

Figure 24: Fault Waveforms

TDA7375A

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 different kinds of information is available at the

same pin (clipping detection, output fault, thermal

proximity), this signal must be handled properly in

order to discriminate the event.

Figure 25: Waveforms

This could be done taking into account the differ-

ent timing of the diagnostic output against differ-

ent events.

Normally the clip detector signalling produces a

low level at out 10 that is shorter referred to every

ST-BY PIN

VOLTAGE

Vs

OUTPUT

WAVEFORM

Vpin 10

WAVEFORM

t

t

D94AU150

t

CLIPPING

SHORT TO GND THERMAL

OR TO Vs

PROXIMITY

11/14

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