参数资料
型号: NCP304HSQ18T1G
厂商: ON Semiconductor
文件页数: 19/24页
文件大小: 0K
描述: IC VOLT DETECT CMOS 1.8V SC-82AB
标准包装: 1
类型: 简单复位/加电复位
监视电压数目: 1
输出: 推挽式,图腾柱
复位: 高有效
电压 - 阀值: 1.8V
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: 剪切带 (CT)
其它名称: NCP304HSQ18T1GOSCT
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
19
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相关代理商/技术参数
参数描述
NCP304HSQ19T1 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Voltage Detector Series
NCP304HSQ20T1 功能描述:电压监测器/监控器 2.0V Detector 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
NCP304HSQ20T1G 功能描述:电压监测器/监控器 2.0V Detector w/Reset High 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
NCP304HSQ21T1 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Voltage Detector Series
NCP304HSQ22T1 功能描述:电压监测器/监控器 2.2V Detector 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