參數資料
型號: NCP300HSN41T1
廠商: ON SEMICONDUCTOR
元件分類: 電源管理
英文描述: Voltage Detector Series
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝: PLASTIC, SC-59, SOT-23, TSOP-5
文件頁數: 15/22頁
文件大?。?/td> 163K
代理商: NCP300HSN41T1
NCP300, NCP301
http://onsemi.com
15
OPERATING DESCRIPTION
The NCP300 and NCP301 series devices are second
generation ultralow current voltage detectors. Figures 21
and 22 show a timing diagram and a typical application.
Initially consider that input voltage V
in
is at a nominal level
and it is greater than the voltage detector upper threshold
(V
DET+
), and the reset output (Pin 1) will be in the high state
for active low devices, or in the low state for active high
devices. If there is a power interruption and V
in
becomes
significantly deficient, it will fall below the lower detector
threshold (V
DET
). This sequence of events causes the Reset
output to be in the low state for active low devices, or in the
high state for active high devices. After completion of the
power interruption, V
in
will again return to its nominal level
and become greater than the V
DET+
. The voltage detector
has builtin hysteresis to prevent erratic reset operation as
the comparator threshold is crossed.
Although these device series are specifically designed for
use as reset controllers in portable microprocessor based
systems, they offer a costeffective solution in numerous
applications where precise voltage monitoring is required.
Figure 22 through Figure 29 shows various application
examples.
Figure 21. Timing Waveforms
V
in
V
DET
+
V
DET
Input Voltage, Pin 2
V
in
0 V
Reset Output (Active Low), Pin 1
Reset Output (Active High), Pin 1
V
in
0 V
V
DET
+
V
DET
V
DET
+
V
DET
相關PDF資料
PDF描述
NCP300HSN42T1 Voltage Detector Series
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NCP300HSN44T1 Voltage Detector Series
NCP300HSN45T1 Voltage Detector Series
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相關代理商/技術參數
參數描述
NCP300HSN42T1 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Voltage Detector Series
NCP300HSN43T1 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Voltage Detector Series
NCP300HSN44T1 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Voltage Detector Series
NCP300HSN45T1 功能描述:電壓監(jiān)測器/監(jiān)控器 4.5V Detector RoHS:否 制造商:Texas Instruments 監(jiān)測電壓數:2 監(jiān)測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風格:SMD/SMT
NCP300HSN45T1G 功能描述:電壓監(jiān)測器/監(jiān)控器 4.5V Detector w/Reset High RoHS:否 制造商:Texas Instruments 監(jiān)測電壓數:2 監(jiān)測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風格:SMD/SMT