AN3271 datasheet(16/29 Pages) STMICROELECTRONICS

поискавой системы для электроныых деталей

AN3271 датащи(PDF) 16 Page - STMicroelectronics

номер детали	AN3271

подробное описание детали	This application note provides

PDF	29 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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16 / 29 page

Automatic confirmation of power-up

AN3271

16/29

Doc ID 17933 Rev 2

Automatic confirmation of power-up

Connect PSHOLD directly to the output voltage VOUT in order to enable automatic

confirmation of power-up (see Figure 14). This allows immediate power-up but does not

guarantee proper startup of the application.

The enable signal EN (EN) is asserted immediately after pushing the PB button, thus

enabling VOUT. Since PSHOLD is connected directly to VOUT, power-up is confirmed

immediately and EN (EN) stays asserted. Please note that a small delay can be caused by

capacitors connected between ground and VOUT elsewhere in the application.

Figure 14.

Automatic confirmation of power-up

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