Microprocessor Supervisory

SGM803/SGM809/SGM810

Circuit in 3-Pin SOT-23

9

JANUARY 2018

SG Micro Corp

www.sg-micro.com

DETAILED DESCRIPTIONS

Reset Timing

The reset signal is asserted LOW for the SGM809 and HIGH for the SGM810 when the power supply voltage falls

below the threshold trip voltage and remains asserted for at least 150ms after the power supply voltage has risen

above the threshold.

Threshould

Voltage

0V

0V

0V

NOTE *: Undefined below minimum operating voltage.

RESET

RESET

240ms (TYP)

240ms (TYP)

*

*

*

*

Figure 4. Reset Timing Diagram

REVISION HISTORY

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

JANUARY 2018 ‒ REV.E.2 to REV.E.3

Changed Reset Timing Diagram..........................................................................................................................................................................9

SEPTEMBER 2015 ‒ REV.E.1 to REV.E.2

Changed Electrical Characteristics section ..........................................................................................................................................................5

JANUARY 2013 ‒ REV.E to REV.E.1

Added Recommended Land Pattern Information ......................................................................................................................................... 10, 11

Added Tape and Reel Information................................................................................................................................................................ 12, 13