ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
S-1000 Series
Rev.2.3_00
(2) (3)
A
(4)
B
(5)
VDD
Release voltage (+VDET
Detection voltage (−VDET
(1)
)
Hysteresis width (VHYS
)
)
Minimum operating voltage
VSS
VDD
Output from the OUT pin
VSS
Figure 15 Operation 2
2. Other characteristics
2. 1 Temperature characteristics of detection voltage
The shaded area in Figure 16 shows the temperature characteristics of the detection voltage.
−VDET [V]
+0.945 mV/°C
*1
−VDET25
−0.945 mV/°C
−40
*1. −VDET25 is an actual detection voltage value at 25°C.
Figure 16 Temperature characteristics of detection voltage (Example for −VDET = 2.7 V)
25
85
Ta [°C]
2. 2 Temperature characteristics of release voltage
∆ + VDET
∆Ta
∆ − VDET
∆Ta
The temperature change
of the release voltage is calculated by the temperature change
of the
detection voltage as follows:
∆ + VDET
∆Ta
+VDET ∆ − VDET
=
×
− VDET
∆Ta
The temperature changes of the release voltage and the detection voltage have the same sign consequently.
14
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
