GL7101

GL7101 GL7101 EARTH LEAKAGE CURRENT DETECTOR Description The GL7101 is designed for use in earth leakage circuit interrupters for operation directly off the AC Line in breakers. It contains pre regulator, main regulator, after regulator, differential amplifier, level comparator, latch circuit. The input in the differential amplifier is connect to the secondary node of zero current transformer. The level comparator generates high level when earth leakage current is greater than some level. (Top view) VR IN GND OD 1 2 GL7101 3 4 8 7 6 5 V+ OS NR SC Feature Low Power consumption (PD = 5mW) 100V/ 200V 100V/200V Common Built-in Voltage Regulator High Gain Differential Amplifier High Input Sensitivity Minimum External Parts Large Surge Margin Wide Operating Temperature Range (TA = -30 to 85¡ ) É High Noise Immunity Absolute Maximum Rating (TA = 25¡ É ) Supply voltage Supply Current Power Dissipation Operating Temperature Storage Temperature 20 8 200 -30 to 85 -55 to 125 V mA mW ¡ É ¡ É Pin Configuration Block diagram V+ 8 OS 7 NR 6 SC 5 Voltage Regulator Latch Bias Amp 1 2 3 4 V IN GND O 1 GL7101 Recommended Operating Condition : Ta = -30¡ Éto 80¡ É PARAMETER Supply Voltage VS-GND Capacitor OS-GND Capacitor SYMBOL V+ CVS COS MIN. 12 1 TYP. MAX. UNIT V µF µF 1 Electrical Characteristics PARAMETER SYMBOL CONDITIONS TEMP (¡ É ) -30 Supply Current 1 IS1 V+=12V, VR-VI=30mV 25 85 * MIN. 9 -12 17 -200 -100 -75 0.7 200 4.3 0.4 20 0.5 1 TYP . 400...