S80830 SII [Seiko Instruments Inc], S80830 Datasheet - Page 33

• Manufacturer Part Number: S80830
• Description: ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
• Manufacturer: SII [Seiko Instruments Inc]

Rev.3.2
2. Power-on Reset Circuit
*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
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 29 left, the output may goes to the high level
_00
removed when the delay of the falling time is not important.
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
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
(R≤75 kΩ)
VDD
VSS
R
C
*1
Seiko Instruments Inc.
t (s)
t (s)
VIN
Di
*2
Figure 27
Figure 28
Figure 29
S-
808xxCN
OUT
(V)
( Nch open-drain products)
OUT
(V)
OUT
S-808xxC Series
t (s)
t (s)
33