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S1003 Datasheet(PDF) 21 Page - Seiko Instruments Inc

Part No. S1003
Description  MANUAL RESET BUILT-IN DELAY CIRCUIT (EXTERNAL DELAY TIME SETTING)
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Maker  SII [Seiko Instruments Inc]
Homepage  http://www.sii.co.jp
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S1003 Datasheet(HTML) 21 Page - Seiko Instruments Inc

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MANUAL RESET BUILT-IN DELAY CIRCUIT (EXTERNAL DELAY TIME SETTING) HIGH-ACCURACY VOLTAGE DETECTOR
Rev.1.0_00
S-1003 Series
Seiko Instruments Inc.
21
4. Other characteristics
4. 1 Temperature characteristics of detection voltage
The shaded area in Figure 26 shows the temperature characteristics of detection voltage in the operation
temperature range.
−40
+25
+0.945 mV/°C
−VDET [V]
+85
Ta [°C]
−0.945 mV/°C
−VDET25
*1
*1.
−VDET25 is an actual detection voltage value at Ta = +25°C.
Figure 26 Temperature Characteristics of Detection Voltage (Example for
−VDET = 2.7 V)
4. 2 Temperature characteristics of release voltage
The temperature change Δ +
VDET
ΔTa
of the release voltage is calculated by using the temperature change
Δ − VDET
ΔTa
of the detection voltage as follows:
Δ + VDET
ΔTa
= +
VDET
−VDET ×
Δ − VDET
ΔTa
The temperature change of the release voltage and the detection voltage has the same sign consequently.
4. 3 Temperature characteristics of hysteresis voltage
The temperature change of the hysteresis voltage is expressed as Δ +
VDET
ΔTa
Δ − VDET
ΔTa
and is calculated as
follows:
Δ + VDET
ΔTa
Δ − VDET
ΔTa
=
VHYS
−VDET ×
Δ − VDET
ΔTa


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