参数资料
| 型号： | NCP305LSQ49T1 |
| 厂商： | ON Semiconductor |
| 文件页数： | 19/24页 |
| 文件大小： | 0K |
| 描述： | IC VOLT DETECT OD 4.9V SC-82AB |
| 产品变化通告： | LTB Notification 03/Jan/2008 |
| 标准包装： | 3,000 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 电压 - 阀值： | 4.9V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-82A，SOT-343 |
| 供应商设备封装： | SC-82AB |
| 包装： | 带卷 (TR) |
NCP304, NCP305
V supply
This circuit monitors the current at the load. As
Load
V D D
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:
R sense
2
Input
50 k
If:
I Load t V DET ? /R sense
I Load w (V DET ? +V HYS )/R sense
Then:
Reset Output = 0 V
Reset Output = V DD
NCP301
NCP305
LSN27T1
LSQ09T1
1
Reset Output
Microcontroller
4
GND
GND
Figure 31. Microcontroller Systems Load Sensing
V supply
2
Input
1
NCP301
NCP305
LSN27T1
LSQ45T1
Reset
Output
4
GND
Input
2
1
NCP301
NCP305
LSN27T1
LSQ27T1
Reset
Output
GND
4
V in = 1.0 V to 10 V
2
Input
NCP301
NCP305
LSN27T1
LSQ18T1
1
Reset
Output
4
GND
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.
Figure 32. LED Bar Graph
http://onsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP305LSQ49T1G | 功能描述:电压监测器/监控器 4.9V Detector w/Reset Low RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT |
| NCP3063_Boost_EVB | 制造商:ON Semiconductor 功能描述:1.5 A, Step-Up/Down/Inverting Switching Regulators 制造商:ON Semiconductor 功能描述:BOOST application Development board |
| NCP3063_Buck_EVB | 制造商:ON Semiconductor 功能描述:BUCK application Development board 制造商:ON Semiconductor 功能描述:1.5 A, Step-Up/Down/Inverting Switching Regulators |
| NCP3063_Invert_EVB | 制造商:ON Semiconductor 功能描述:Inverting application Development board 制造商:ON Semiconductor 功能描述:1.5 A, Step-Up/Down/Inverting Switching Regulators |
| NCP3063BDR2G | 功能描述:直流/直流开关调节器 1.5 A DCDC SW REG RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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