參數資料
型號： NCP302LSN33T1
廠商： ON SEMICONDUCTOR
元件分類： 電源管理
英文描述： Voltage Detector Series with Programmable Delay
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝： SOT-23, SC-59, TSOP-5
文件頁數： 20/26頁
文件大?。?/td> 191K
代理商： NCP302LSN33T1
NCP302, NCP303
http://onsemi.com
20
Figure 43. Microcontroller Systems Load Sensing
LSN27T1
LSN09T1
50 k
NCP301
NCP303
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:
5
C
D
Figure 44. LED Bar Graph Voltage Monitor
LSN27T1
LSN45T1
2
NCP301
NCP303
3
1
V
supply
LSN27T1
2
NCP301
NCP303
3
1
LSN27T1
LSN18T1
2
NCP301
NCP303
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.
5
C
D
5
C
D
5
C
D
相關PDF資料
PDF描述
NCP302LSN33T1G Automotive Catalog Ultra-Low Quiescent Current 150-mA Low-Dropout Voltage Regulators 8-SOIC -40 to 125
NCP302LSN38T1G Single Output LDO, 150mA, Fixed(1.5V), Low Quiescent Current, Power Good (PG) Output 8-SOIC
NCP302LSN40T1 Voltage Detector Series with Programmable Delay
NCP302LSN43T1 Voltage Detector Series with Programmable Delay
NCP302LSN45T1 Voltage Detector Series with Programmable Delay
相關代理商/技術參數
參數描述
NCP302LSN33T1G 功能描述:電壓監(jiān)測器/監(jiān)控器 3.3V Detector w/Reset Low 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
NCP302LSN34T1 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel 制造商:Motorola Inc 功能描述: 制造商:ON Semiconductor 功能描述:
NCP302LSN35T1 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:ON Semiconductor 功能描述:
NCP302LSN36T1 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel 制造商:Motorola Inc 功能描述: 制造商:ON Semiconductor 功能描述:
NCP302LSN37T1 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel 制造商:ON Semiconductor 功能描述:
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