KA2803 Datasheet - ON Semiconductor

KA2803 Earth Leakage Detector

The KA2803 is designed for use in earth leakage circuit interrupters, for operation directly off the AC line in breakers. The input of the differential amplifier is connected to the secondary coil of Zero Current Transformer (ZCT). The amplified output of differential amplifier is integrated at exte.

KA2803 Features

* Low Power Consumption: 5 mW, 100 V/200 V

* Built-in Voltage Regulator

* High-gain Differential Amplifier

* 0.4 mA Output Current Pulse to Trigger SCRs

* Low External Part Count

* SOP Package, High Packing Density

* High Noise Immunity, Large

KA2803-ONSemiconductor.pdf