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參數(shù)資料
| 型號： | NCP302LSN45T1 |
| 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(shù)： | 20/26頁 |
| 文件大小： | 191K |
| 代理商： | NCP302LSN45T1 |
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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
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| NCP303LSN22T1 | Voltage Detector Series with Programmable Delay |
| NCP303LSN23T1 | Single Output LDO, 150mA, Fixed(2.5V), Low Quiescent Current, Power Good (PG) Output 8-SOIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP302LSN45T1G | 功能描述:電壓監(jiān)測器/監(jiān)控器 4.5V Detector w/Reset Low 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 |
| NCP302LSN45T1G | 制造商:ON Semiconductor 功能描述:Voltage Regulator IC |
| NCP302LSN46T1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:ON Semiconductor 功能描述: |
| NCP302LSN47T1 | 功能描述:電壓監(jiān)測器/監(jiān)控器 4.7V 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 |
| NCP302LSN47T1G | 功能描述:電壓監(jiān)測器/監(jiān)控器 4.7V Detector w/Reset Low 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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