參數(shù)資料
型號(hào)： NCP304
廠商： ON SEMICONDUCTOR
英文描述： Voltage Detector Series(電壓檢測器系列)
中文描述： 電壓檢測器系列（電壓檢測器系列）
文件頁數(shù)： 18/23頁
文件大小： 190K
代理商： NCP304
NCP304, NCP305
http://onsemi.com
18
Figure 31. Microcontroller Systems Load Sensing
LSN27T1
LSQ09T1
50 k
NCP301
NCP305
V
supply
Load
R
sense
Input
2
4
GND
1
Reset Output
Microcontroller
GND
V
DD
If:
I
Load
I
Load
V
DET-
/R
sense
(V
DET-
+V
HYS
)/R
sense
Then:
Reset Output = 0 V
Reset Output = V
DD
This circuit monitors the current at the load. As
current flows through the load, a voltage drop with
respect to ground appears across R
sense
where
V
sense
= I
load
* R
sense.
The following conditions apply:
Figure 32. LED Bar Graph
LSN27T1
LSQ45T1
2
NCP301
NCP305
4
1
V
supply
LSN27T1
LSQ27T1
2
NCP301
NCP305
4
1
LSN27T1
LSQ18T1
2
NCP301
NCP305
4
1
Input
GND
Reset
Output
Input
GND
Reset
Output
Input
GND
Reset
Output
V
in
= 1.0 V to 10 V
A simple voltage monitor can be constructed by connecting several voltage detectors as shown above. Each LED will
sequentially turn on when the respective voltage detector threshold (V
DET-
+V
HYS
) is exceeded. Note that detector
thresholds (V
DET-
) that range from 0.9 V to 4.9 V in 100 mV steps can be manufactured.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCP304/D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector Series
NCP304_06 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Voltage Detector Series
NCP304A 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Voltage Detector Series
NCP304ALSQ43T1G 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 ANA UNDERVOLT DETECT 4.3V RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
NCP304HSQ09T1 功能描述:電壓監(jiān)測器/監(jiān)控器 0.9V Detector RoHS:否 制造商:Texas Instruments 監(jiān)測電壓數(shù):2 監(jiān)測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準(zhǔn)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(fēng)格:SMD/SMT
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