參數(shù)資料
型號(hào): S-80856CLPF-B7HTFG
廠商: Seiko Instruments Inc.
英文描述: ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
中文描述: 超小型封裝高精度電壓檢測(cè)器
文件頁(yè)數(shù): 33/54頁(yè)
文件大小: 672K
代理商: S-80856CLPF-B7HTFG
Rev.3.2
_00
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
S-808xxC Series
Seiko Instruments Inc.
33
2. Power-on Reset Circuit
A power-on reset circuit can be constructed using Nch open-drain output product of S-808
××
C Series.
(
Nch open-drain products)
OUT
VIN
VSS
VDD
S-
808xxCN
R
*1
C
Di
*2
(R
75 k
)
*1.
Resistor R should be 75 k
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.
Figure 27
V
DD
(V)
t (s)
OUT
(V)
t (s)
Figure 28
Remark
When the power rises sharply as shown in the
Figure 29
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
DD
(V)
t (s)
OUT
(V)
t (s)
Figure 29
相關(guān)PDF資料
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