Practical information

STA540

18/23

6.7.3

Clipping detection

Figure 24.

Clipping detection waveforms

Current sinking at pin 10 occurs when a certain distortion level is reached at each output.

This function initiates a gain-compression facility whenever the amplifier is overdriven.

6.7.4

Thermal shutdown

With the thermal shutdown feature, the diagnostics output (pin 10) signals the closeness of

the junction temperature to the shutdown threshold. Typically, current sinking at pin 10 starts

approximately 10° C before the shutdown temperature is reached.

Figure 25.

Output fault waveforms (see Figure 26)

Figure 26.

Fault waveforms

SOFT SHORT

OUT TO Vs SHORT

FAULT DETECTION

CORRECT TURN-ON

OUT TO GND SHORT

t

t

t

ST-BY PIN

VOLTAGE

2V

OUTPUT

WAVEFORM

Vpin 10

CHECK AT TURN-ON

(TEST PHASE)

SHORT TO GND

OR TO Vs

D05AU1603mod