參數(shù)資料
型號(hào)： NCP304HSQ46T1
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, PDSO4
封裝： SC-82AB, 4 PIN
文件頁數(shù)： 19/24頁
文件大?。?/td> 244K
代理商： NCP304HSQ46T1
NCP304, NCP305
http://onsemi.com
19
Figure 31. Microcontroller Systems Load Sensing
LSN27T1
LSQ09T1
50 k
NCP301
NCP305
V
supply
Load
R
sense
Input
2
3
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
3
1
V
supply
LSN27T1
LSQ27T1
2
NCP301
NCP305
3
1
LSN27T1
LSQ18T1
2
NCP301
NCP305
3
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
NCP305LSQ46T1 Voltage Detector Series
NCP304LSQ47T1 Voltage Detector Series
NCP304HSQ47T1 Voltage Detector Series
NCP305LSQ47T1 Voltage Detector Series
NCP304HSQ09T1 Voltage Detector Series
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCP304HSQ47T1 功能描述:電壓監(jiān)測(cè)器/監(jiān)控器 ANA UNDERVOLT DETECT 4.7V RoHS:否 制造商:Texas Instruments 監(jiān)測(cè)電壓數(shù):2 監(jiān)測(cè)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
NCP304HSQ47T1G 功能描述:電壓監(jiān)測(cè)器/監(jiān)控器 4.7V Detector w/Reset High RoHS:否 制造商:Texas Instruments 監(jiān)測(cè)電壓數(shù):2 監(jiān)測(cè)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
NCP304HSQ48T1 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Voltage Detector Series
NCP304HSQ49T1 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Voltage Detector Series
NCP304LSQ09T1 功能描述:電壓監(jiān)測(cè)器/監(jiān)控器 0.9V Detector RoHS:否 制造商:Texas Instruments 監(jiān)測(cè)電壓數(shù):2 監(jiān)測(cè)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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