DocID025107 Rev 1

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AN4346

Electrical waveform

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Converter is internally self supplying through the HVs generator.

If the short is removed, the output voltage comes back to its nominal value, the external

charging pump supplies the IC and the output current is regulated at its nominal value.

Figure 49. Short-circuit removal at 100 Vac

- 50 Hz

Figure 50. Short-circuit removal at 230 Vac

- 50 Hz

CH1: DRAIN pin

CH2: CS pin

CH1: DRAIN pin

CH2: CS pin