S80830 datasheet(32/54 Pages) SII

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ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR

S-808xxC Series

Rev.3.2_00

Seiko Instruments Inc.

OUT

VSS

VDD

S-808xxC

Series

100 k

Ω

COUT

VDD

VIH

Output voltage

Input voltagae

VIL

VDD

tpHL

tpLH

VIH

=10 V, VIL=0.95 V

µs

VDD

×10 %

VDD

×90 %

*1.

R is unnecessary for CMOS output products.

Figure 23 Measurement Condition for Response Time

Figure 24 Measurement Circuit for Response Time

Caution The above connection diagram and constants do not guarantee correct operation. Perform

sufficient evaluation using the actual application to set the constants.

Application Circuit Examples

1. Microcomputer Reset Circuits

If the power supply voltage to a microcomputer falls below the specified level, an unspecified operation may

be performed or the contents of the memory register may be lost. When power supply voltage returns to

normal, the microcomputer needs to be initialized before normal operations can be done.

Reset circuits protect microcomputers in the event of current being momentarily switched off or lowered.

Reset circuits shown in Figures 25 to 26 can be easily constructed with the help of the S-808xxC series,

that has low operating voltage, a high-precision detection voltage and hysteresis.

VSS

VDD

Microcomputer

S-

808xxCL

VSS

(Only for Nch open-drain products)

VDD1

VDD2

Microcomputer

S-

808xxCN

Figure 25 Reset Circuit Example(S-808xxCL)

Figure 26 Reset Circuit Example (S-808xxCN)

Caution The above connection diagram and constants do not guarantee correct operation. Perform

sufficient evaluation using the actual application to set the constants.

S80830 Datasheet(PDF) 32 Page - Seiko Instruments Inc

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