PST573K datasheet(6/6 Pages) MITSUMI

Part #	PST573K

Description	SYSTEM RESET Monolithic IC

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Manufacturer	MITSUMI [Mitsumi Electronics, Corp.]

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MITSUMI

System Reset PST573

4 Battery checker (LED ON for low voltage)

Note: Connect a capacitor between IC pins 1 and 2 if

VCC line impedance is high.

5. Hysteresis voltage UP method

When increasing hysteresis voltage for stable system

operation, determine RH as follows and connect

externally.

However, ICCH is -5000PPM/°C, so perform

temperature compensation at RH when using over a

wide temperature range.

Hysteresis voltage UP amount (

Vsup) is

Vsup

.

=. RH

ICCL

Total hysteresis voltage (

Vstotal) is

Vstotal

.

=. Vs +

Vsup

Note: Connect a capacitor between IC pins 1 and 2 if

VCC line impedance is high.

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