STCH02 datasheet(20/24 Pages) STMICROELECTRONICS

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STCH02 Scheda tecnica(PDF) 20 Page - STMicroelectronics

Il numero della parte	STCH02

Spiegazioni elettronici	Offline PWM controller for ultra-low standby adapters

PDF	24 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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20 / 24 page

Application information

STCH02

20/24

DocID028766 Rev 1

time, which clears the latch. The internal start-up generator is still off, then the VDD voltage

still needs to go below its restart voltage before the VDD capacitor is charged again and the

device restarted. Ultimately, this will result in a low frequency intermittent operation (hiccup

mode operation), with very low stress on the power circuit. This special condition is

illustrated in the timing diagram of Figure 12.

Figure 12. Hiccup mode OCP: timing diagram

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