FM2140 Shanghai Fudan Microelectronics Co., Ltd., FM2140 Datasheet - Page 3

• Manufacturer Part Number: FM2140
• Description: Low Power Two-wire Ground Fault Interrupter
• Manufacturer: Shanghai Fudan Microelectronics Co., Ltd.

Product Description
Description
Features
Pin Assignments
Pin Functions
FM2140 Low power Two-Wire Ground Fault Interrupter
FM2140 is a low power controller for AC output appliance leakage current interrupters. This
device detects hazardous current paths to ground, and trigger SCR to protect.
Pin
Powered from the AC line
Build-in bridge rectifier
Direct interface to SCR
Adjustable trip current
Adjustable time delay
Minimum external components
Meets UL 943 requirements
Specifically for two-wire system
For use with 110V or 220V system
Dip8 or SOP8 Package
1
2
3
4
5
6
7
8
SCR Trigger
V
Symbol
C Delay
Ground
Neutral
ref
R
VFB
Line
(2.9V)
SET
Leakage current first output
Leakage current input
Reference voltage
Ground
Line input
Neutral input
SCR trigger
Delay time
Ver2.0
Functions
Specification
3