GL7101

1

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.

Feature

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

• High Gain Differential Amplifier

• High Input Sensitivity

• Minimum External Parts

• Large Surge Margin

• Wide Operating Temperature Range (T

)

• High Noise Immunity

Pin Configuration

(Top view)

Supply voltage

20

V

Supply Current

8

mA

Power Dissipation

200

mW

Operating Temperature

-30 to 85

¡ É

Storage Temperature

-55 to 125

¡ É

Block diagram

GL7101

1

2

3

4

8

7

6

5

IN

GND

V

+

Voltage Regulator

IN

8

7

6

5

1

2

3

4

Bias

Latch

V

GND

O

V

+

Amp