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LM1851M Folha de dados(PDF) 1 Page - National Semiconductor (TI) |
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LM1851M Folha de dados(HTML) 1 Page - National Semiconductor (TI) |
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1 / 8 page  TLH5177 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 |
Nº de peça semelhante - LM1851M |
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Descrição semelhante - LM1851M |
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