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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： | 1/10页 |
| 文件大小： | 202K |
| 代理商： | LM1851MWC |
TLH5177
LM1851
Ground
Fault
Interrupter
June 1992
LM1851 Ground Fault Interrupter
General Description
The LM1851 is designed to provide ground fault protection
for AC power outlets in consumer and industrial environ-
ments 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 condi-
tion In addition to detection of conventional hot wire to
ground faults the neutral fault condition is also detected
Full advantage of the US UL943 timing specification is tak-
en to insure maximum immunity to false triggering due to
line noise Special features include circuitry that rapidly re-
sets the timing capacitor in the event that noise pulses intro-
duce 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
Y
Internal power supply shunt regulator
Y
Externally programmable fault current threshold
Y
Externally programmable fault current integration time
Y
Direct interface to SCR
Y
Operates under line reversal both load vs line and hot
vs neutral
Y
Detects neutral line faults
Block and Connection Diagram
TLH5177 – 1
Order Number LM1851M or LM1851N
See NS Package Number M08A or N08E
C1995 National Semiconductor Corporation
RRD-B30M115Printed in U S A
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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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