FM1233DES3X

更新时间： 2024-02-19 05:17:17

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FM1233DES3X 数据手册

General Description

The FM1233D features a highly accurate voltage reference to

which V

is compared. Once V

is below the speciﬁed

threshold, it will drive the RESET line and continue to hold it low

until V returns above the threshold and the time for the

RESET pulse duration has expired. The FM1233D is immune to

short negative going transients on the V line. The placement

of a 0.1µF bypass capacitor as close as possible to the V pin

provides additional transient immunity.

For a V

value below 1.0V, the FM1233D does not sink very

much current on the RESET pin. This is not a problem in most

systems since common devices are not functional in this range.

If it is desired for the FM1233D reset to be functional below this

range, use a 100KΩ pull-down resistor between RESET and

www.fairchildsemi.com

FM1233D Rev. D

1 2 3 456 7

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