S-1004NA10I-M5T1U Datasheet, PDF (22/42 Pages) Seiko Instruments Inc – Release delay time accuracy

BUILT-IN DELAY CIRCUIT (EXTERNAL DELAY TIME SETTING) VOLTAGE DETECTOR WITH SENSE PIN
S-1004 Series
Rev.2.1_01
4. Other characteristics
4. 1 Temperature characteristics of detection voltage
The shaded area in Figure 32 shows the temperature characteristics of detection voltage in the operation
temperature range.
−V_DET [V]
+0.945 mV/°C
−V_DET25^*1
−0.945 mV/°C
−40
+25
+85
Ta [°C]
*1. −VDET25 is a detection voltage value at Ta = +25°C.
Figure 32 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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