SL7101

System Logic

Semiconductor

SLS

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.

• 100V/200V Common Built-in Voltage Regulator

• High Gain Differential Amplifier

• High Input Sensitivity

• Minimum External Parts

• Large Surge Margin

• High Noise Immunity

Block Diagram

Feature

Pin Configuration

(Top View)

20V

8mA

200mW

- 30 to 85°C

- 55 to 125°C

Absolute Maximum Ratings (T^=25°c)

4

3

2

1

5

6

7

8

V

R

O

D

IN

V

+

O

S

N

R

S

C