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参数资料
| 型号： | LM1851MWC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC |
| 封装： | WAFER |
| 文件页数： | 2/10页 |
| 文件大小： | 202K |
| 代理商： | LM1851MWC |
National P/N LM1851 - Ground Fault Interrupter
The LM1851 is designed to provide ground fault protection for AC power outlets in consumer and industrial
environments. Ground fault currents greater than a presettable threshold value will trigger an external SCR-
driven circuit breaker to interrupt the AC line and remove the fault condition. In addition to detection of
conventional hot wire to ground faults, the neutral fault condition is also detected.
Full advantage of the U.S. UL943 timing specification is taken to insure maximum immunity to false
triggering due to line noise. Special features include circuitry that rapidly resets the timing capacitor in the
event that noise pulses introduce unwanted charging currents and a memory circuit that allows firing of even
a sluggish breaker on either half-cycle of the line voltage when external full-wave rectification is used.
Features
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Internal power supply shunt regulator
q
Externally programmable fault current threshold
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Externally programmable fault current integration time
q
Direct interface to SCR
q
Operates under line reversal; both load vs line and hot vs neutral
q
Detects neutral line faults
[Information as of 5-Aug-2002]
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM1851MX | 功能描述:电流和电力监控器、调节器 RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| LM1851MX/NOPB | 功能描述:电流和电力监控器、调节器 RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| LM1851N | 功能描述:电流和电力监控器、调节器 RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| LM1851N/A+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Ground Fault Interrupter |
| LM1851N/B+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Ground Fault Interrupter |
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