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.
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM1851M/NOPB Texas Instruments Ground Fault Interrupter 8-SOIC -55 to 125
LM1851N/NOPB Texas Instruments Ground Fault Interrupter 8-PDIP -55 to 125
LM1851N Texas Instruments 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, 0.300 INCH, PLASTIC, DIP-8
LM1851MX Texas Instruments 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 0.150 INCH, PLASTIC, SOP-8
LM1851M Texas Instruments Ground Fault Interrupter 8-SOIC -55 to 125
LM1851MX/NOPB Texas Instruments Ground Fault Interrupter 8-SOIC -55 to 125
LM185BYH-1.2 Texas Instruments Micropower Voltage Reference Diode 2-TO -55 to 125
5962-8759401VXA Texas Instruments Micropower Voltage Reference Diode 2-TO -55 to 125
5962-8759401YA Texas Instruments Micropower Voltage Reference Diode 10-CFP -55 to 125
LM185H-1.2 Texas Instruments Micropower Voltage Reference Diode 2-TO -55 to 125
LM1851 's PackagesLM1851 's pdf datasheet
LM1851M SOIC
LM1851MX SOIC
LM1851N DIP




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LM1851 Application circuits
LM1851 circuits
This is one application circuit of LM1851,If you need more circuits,please download LM1851's pdf datasheet.


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