GM1851_15 Datasheet, PDF (1/10 Pages) Unisonic Technologies – GROUND FAULT INTERRUPTER

UNISONIC TECHNOLOGIES CO., LTD
GM1851
LINEAR INTEGRATED CIRCUIT
GROUND FAULT
INTERRUPTER
„ DESCRIPTION
The UTC GM1851 can specially provide ground fault protection
for AC power outlets in consumer and industrial environments. As
ground fault currents greater than a presentable threshold value, it
will trigger an external SCR-driven circuit breaker to interrupt the
AC line and remove the fault condition. Besides of detection of
conventional hot wire to ground faults, the neutral fault condition is
detected also. 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, circuitry that rapidly resets
the timing capacitor.
„ FEATURES
Lead-free: GM1851L
Halogen-free: GM1851G
* Internal power supply shunt regulator
* Externally programmable fault current threshold
* Externally programmable fault current integration time
* Direct interface to SCR
* Operates under line reversal; both load vs line and hot vs neutral
* Detects neutral line faults
„ ORDERING INFORMATION
Normal
GM1851-S08-R
GM1851-D08-T
Ordering Number
Lead Free
GM1851L-S08-R
GM1851L-D08-T
Halogen Free
GM1851G-S08-R
GM1851G-D08-T
Package
SOP-8
DIP-8
Packing
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2008 Unisonic Technologies Co., Ltd
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