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參數(shù)資料
| 型號： | LM1851N |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Ground Fault Interrupter |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 165K |
| 代理商： | LM1851N |
TL/H/5177
L
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 U.S. 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
TL/H/5177–1
Order Number LM1851M or LM1851N
See NS Package Number M08A or N08E
C
1995 National Semiconductor Corporation
RRD-B30M115/Printed in U. S. A.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM1851N/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Ground Fault Interrupter |
| LM1851N/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Ground Fault Interrupter |
| LM1851N/NOPB | 功能描述:電流和電力監(jiān)控器、調節(jié)器 RoHS:否 制造商:STMicroelectronics 產品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| LM185-2.5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower Voltage Reference |
| LM185-2.5 MD8 | 制造商:Texas Instruments 功能描述:DIE FORM - Gel-pak, waffle pack, wafer, diced wafer on film |
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