SL7101
EARTH LEAKAGE CURRENT DETECTOR
Description
The SL7101 is designed for use in earth leakage circuit interrupters ...
SL7101
EARTH LEAKAGE CURRENT DETECTOR
Description
The SL7101 is designed for use in earth leakage circuit interrupters for operation directly of 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.
Feature
Low Power Consumption (P D=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 (TÀ =-30 to 85°C) High Noise Immunity
Pin Configuration (Top View)
VR I N 1 2 3 OD 4 8 7 6 5 V
+
OS NR SC
Absolute Maximum Ratings (T^=25°c)
§ § § § §
Supply
Voltage Supply Current Power Dissipation Operating Temperature Storage Temperature
20V 8mA 200mW - 30 to 85°C - 55 to 125°C
Block Diagram
SLS
System Logic Semiconductor
SL7101
Recomended Operating Condition: T A=-30°C to 80°C
PARAMETER Supply
Voltage Vs-GND Capacitor OS-GND Capacitor SYMBOL V Cvs Cos
+
MIN. 12 1
TYP.
MAX
UNIT V µF
1
µF
Electrical Characteristics
PARAMETER
SYMBOL
CONDTIONS V+=12V, VR - VI = 30 mV V+ = 16V, VR - VI = X V+ = 16 V, VR - VI = 30 mV VOD = 1.2 V V+ = 16 V, VR - VI = short VOD = 0.8 V lSI = 580µA V SC = 1.4 V lSI = 530µA V OS = 0.8 V lSI = 480µA V+ = 16 V V+ = l2...