KA2807 Datasheet, PDF (1/6 Pages) Fairchild Semiconductor – Earth Leakage Detector

KA2807
Earth Leakage Detector
www.fairchildsemi.com
Features
• Full Advantage of the UL943
• Built-In Voltage Regulator
• Sense Coil: 1000:1
• GND/Neutral Coil: 200:1
• Trip Time in Normal Fault and Ground Neutral Fault is
18ms Typ
• Wide Operating Temperature Range
• Excellent ESD Characteristic
• 1mA Output Current Pulse to Trigger SCR
Description
The KA2807 is a IC for ground fault circuit interrupters
which are intended to provide an electrical shock hazard pro-
tection from line to ground fault currents on grounded cir-
cuits of 120V supplies.
8-DIP
1
8-SOP
1
Internal Block Diagram
VCC
8
V.REG.
AMP OUT
5
TIMING
RESISTOR
6
TIMING CONTROL
+INPUT 3
-INPUT 2
+
AMP
_
4
GND
©2002 Fairchild Semiconductor Corporation
LATCH
1
TRIGGER OUT
7
TIMING
CAPACITOR
Rev. 1.0.0