S-801 Seiko Instruments, S-801 Datasheet - Page 18

• Manufacturer Part Number: S-801
• Description: ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
• Manufacturer: Seiko Instruments

18
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR WITH DELAY CIRCUIT (INTERNAL DELAY TIME SETTING)
S-801 Series
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2. Hysteresis Width (V
3. Delay Time (t
4. Through-type Current
Hysteresis width is the voltage difference between the detection voltage and the release voltage
(The voltage at point B−The voltage at point A=V
width prevents malfunction caused by noise on input signal.
Delay time is a time internally measured from the instant at which input voltage to the VDD pin
exceeds the release voltage (+V
delay time is fixed in each series distinguished by A, B and C.
The output of the OUT pin can be inverted in a short delay time (t
to Figure 16 ).
The through-type current refers to the current that flows instantaneously at the time of detection and
release of a voltage detector. The through-type current flows at a frequency of 20 kHz during release
delay time since the internal logic circuit operates.
S-801xxAx series: typ.
S-801xxBx series: typ.
S-801xxCx series: typ.
D
)
HYS
+V
)
V
DET
50 ms
100 ms
200 ms
Seiko Instruments Inc.
DET
) to the point at which the output of the OUT pin inverts. The
t
D2
Figure 16
at DS=”H”
t
HYS
D1
V
in Figure 11 ). The existence of the hysteresis
DD
D2
) by setting the DS pin High (Refer
OUT
Rev.3.3
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