S-80845CNNB-B86T2G Seiko Instruments, S-80845CNNB-B86T2G Datasheet - Page 36
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S-80845CNNB-B86T2G
Manufacturer Part Number
S-80845CNNB-B86T2G
Description
IC VOLT DETECTOR 4.5V SC-82AB
Manufacturer
Seiko Instruments
Type
Simple Reset/Power-On Resetr
Datasheet
1.S-80821CNMC-B8GT2G.pdf
(59 pages)
Specifications of S-80845CNNB-B86T2G
Number Of Voltages Monitored
1
Output
Open Drain or Open Collector
Reset
Active Low
Voltage - Threshold
4.5V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SC-70-4, SC-82-4, SOT-323-4, SOT-343
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Reset Timeout
-
36
SUPER-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
S-808xxC Series
2. Power-on Reset Circuit
A power-on reset circuit can be constructed using Nch open-drain output product of S-808××C Series.
Remark When the power rises sharply as shown in the Figure 31 left, the output may goes to the high level
for an instant in the undefined region where the output voltage is undefined since the power
voltage is less than the minimum operation voltage.
V
(V)
V
(V)
DD
DD
*1. Resistor R should be 75 kΩ or less to prevent oscillation.
*2. Diode Di instantaneously discharges the charge stored in the capacitor (C) at the
power falling,Di can be removed when the delay of the falling time is not important.
(R≤75 kΩ)
VDD
VSS
R
C
* 1
Seiko Instruments Inc.
t (s)
t (s)
VIN
Di
*2
Figure 29
Figure 30
Figure 31
S-
808xxCN
OUT
(V)
(Nch open-drain products)
OUT
(V)
OUT
t (s)
t (s)
Rev.5.0
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