S-80833CNMC Datasheet, PDF (25/56 Pages) Seiko Instruments Inc – SUPER-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR

Rev.6.1_00
SUPER-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
S-808xxC Series
2-3. Temperature Characteristics of Hysteresis Voltage
The temperature change of the hysteresis voltage is expressed as ^{Δ + VDET} − ^{Δ − VDET} and is calculated
ΔTa
ΔTa
as follows:
Δ + VDET _− Δ − VDET ₌ VHYS _× Δ − VDET
ΔTa
ΔTa
− VDET ΔTa
„ Standard Circuit
VDD
OUT
VSS
R^*1
100 kΩ
*1. R is unnecessary for CMOS output products.
Figure 20
Caution The above connection diagram and constants do not guarantee correct operation. Perform
sufficient evaluation using the actual application to set the constants.
„ Technical Terms
1. Detection Voltage (−V_DET), Release Voltage (+V_DET)
The detection voltage (−V_DET) is a voltage at which the output turns to low. The detection voltage varies slightly
among products of the same specification. The variation of detection voltage between the specified minimum
(−V_DET) Min. and the maximum (−V_DET) Max. is called the detection voltage range (Refer to Figure 21).
Example: For the S-80815CN, the detection voltage lies in the range of 1.470≤(−V_DET)≤1.530.
This means that some S-80815CNs have 1.470 V for −V_DET and some have 1.530 V.
The release voltage (+V_DET) is a voltage at which the output turns to high. The release voltage varies slightly
among products of the same specification. The variation of release voltages between the specified
minimum (+V_DET) Min. and the maximum (+V_DET) Max. is called the release voltage range (Refer to Figure
22). The range is calculed from the actual detection voltage (−V_DET) of a product and is expressed by
−V_DET×1.03≤+V_DET≤−V_DET ×1.08.
Example: For the S-80815CN, the release voltage lies in the range of 1.514≤(+V_DET)≤1.652.
This means that some S-80815CNs have 1.514 V for +V_DET and some have 1.652 V.
Seiko Instruments Inc.
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