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PDF GM1851 Data sheet ( Hoja de datos )
| Número de pieza | GM1851 | |
| Descripción | GROUND FAULT INTERRUPTER | |
| Fabricantes | Unisonic Technologies | |
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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.DataSheet4U.com
www.unisonic.com.tw
Copyright © 2008 Unisonic Technologies Co., Ltd
1 of 10
QW-R122-007,B
1 page  
GM1851
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Current
ICC 19 mA
Power Dissipation (Note 1)
Operating Temperature
PD
TOPR
1250
-40 ~ +70
mW
°C
Storage Temperature
TSTG
-55 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS (Ta=25°C, ISS=5mA)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
DC CHARACTERISTICS
Power Supply Shunt Regulator Voltage Pin 8, Average Value
Latch Trigger Voltage
Pin 7
Sensitivity Set Voltage
Pin 8 to Pin 6
Output Saturation Voltage
Pin 1, Without Fault
Output Drive Current
Pin 1, With Fault
Output
External
Current
Sinking Capability
Pin 1, Without Fault
Vpin 1 Held to 0.3V (Note
4)
Output Saturation Resistance
Pin 1, Without Fault
Noise Integration Sink Current Ratio
Pin 7, Ratio of Discharge Currents Between
No Fault and Fault Conditions
22 26 30 V
15 17.5 20 V
6 7 8.2 V
100 240 mV
0.5 1 2.4 mA
2.0 5
mA
100 Ω
2.0 2.8 3.6 μA/μA
AC CHARACTERISTICS
Normal Fault Current Sensitivity
Figure 1 (Note 3)
3 5 7 mA
Normal Fault Trip Time
500Ω Fault, Figure 2 (Note 2)
18 mS
Normal Fault with Grounded Neutral Fault 500Ω Normal Fault, 2Ω Neutral, Figure 2
Trip Time
(Note 2)
18 mS
Note: 1.For operation in ambient temperatures above 25℃, the device must be debated based on a 125℃ maximum
junction temperature and a thermal resistance of 80℃/W junction to ambient for the DIP and 162/W for the
SO Package.
2.Average of 10 trials.
3.Required UL sensitivity tolerance is such that external trimming of UTC GM1851 sensitivity will be necessary.
4.This externally applied current is in addition to the internal ''output drive current '' source.
www.DataSheet4U.com
FIGURE 1.Normal Fault Sensitivity Test Circuit
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 10
QW-R122-007,B
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet GM1851.PDF ] | |
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