AN3271 datasheet(18/29 Pages) STMICROELECTRONICS

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AN3271 Datasheet(PDF) 18 Page - STMicroelectronics

Part #	AN3271

Description	This application note provides

PDF	29 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

18 / 29 page

Automatic confirmation of power-up + immediate shutdown after PB button press or undervolt-

18/29

Doc ID 17933 Rev 2

A push-button (PB) press always asserts the interrupt (INT). Since INT is connected to

PSHOLD they both go low at the same time, EN output is deasserted, and therefore power

for the application is turned off (see Figure 16).

Figure 16.

Waveform for shutdown after PB button press

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