UNISONIC TECHNOLOGIES CO., LTD GF2140 LINEAR INTEGRATED CIRCUIT LOW POWER TWO-WIRE GROUND FAULT INTERRUPTER DESCRIPTION As a low power controller for AC output appliance leakage current interrupters, the UTC GF2140 can detect hazardous current paths to ground, and trigger SCR to protect. FEATURES * Directly powered from the AC line * Build-in bridge rectifer * Interface to SCR * Adjustable trip current and time delay * Minimum external components * For two-wire system * Be used in 110V or 220V system SOP-8 Lead-free: GF2140L Halogen-free: GF2140G ORDERING INFORMATION Normal GF2140-S08-R GF2140-S08-T Ordering Number Lead Free GF2140L-S08-R GF2140L-S08-T Halogen Free GF2140G-S08-R GF2140G-S08-T www.unisonic.com.tw Copyright © 2008 Unisonic Technologies Co., Ltd Package Packing SOP-8 SOP-8 Tape Reel Tube 1 of 4 QW-R121-016.B GF2140 LINEAR INTEGRATED CIRCUIT PIN CONNECTIONS PIN DESCRIPTION PIN # 1 2 3 4 5 6 7 8 PIN NAME Rsct VFB VREF GND Line Neutral SCR Trigger C Delay I/O O I I I I O PIN FUNCTION Output of Leakage current first Input of leakage current Reference voltage Ground Line input Neutral input SCR Trigger The Delay time UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 4 QW-R121-016.B GF2140 LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS (ILINE=1.2mA, TA=25℃,RSET=290kΩ) PARAMETER Shunt Regulator (PIN 5-4) SYMBOL CONDITIONS MIN TYP MAX UNITS Regulator Voltage VREG I2-3=11μA ILINE=700μA, I2-3=9μA 6.1 6.1 6.5 6.5 7.5 7.5 Sense Amplifier (PIN 2-3) Offset Voltage Input Bias Current Gain Bandwidth SCR Trigger (PIN 7-6) VI(OFF) II(BIAS) fT Design Value Design Value Design Value -3.0 0 15 3.44 +3.0 30 mV nA MHZ Output Voltage VOUT Output Current Output Resistance Reference Voltage (PIN 3-4) Reference Voltage Delay Time (PIN 8-4) Delay Current Delay Time IOUT ZO I2-3=9μA I2-3=11μA V7-6=0V, I2-3=11μA V5-6=open, I2-3=0 0 1.4 300 4.0 0.1 2.0 420 4.7 10 2.6 600 5.4 mV V μA KΩ VREF ILINE=700μA 2.6 2.9 3.4 V I2-3=11μA C8-4=20nF 23 30 2.0 43 μA ms ID tD UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw V 3 of 4 QW-R121-016.B GF2140 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 4 QW-R121-016.B