KA2803 - Earth Leakage Detector

ON Semiconductor

KA2803 Datasheet Preview — Preview of KA2803 PDF

Datasheet Details

Part number	KA2803
Manufacturer	ON Semiconductor ↗
File Size	830.18 KB
Description	Earth Leakage Detector
Datasheet	KA2803-ONSemiconductor.pdf

KA2803 Product details

Description

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 external capacitor to gain adequate time delay.The level comparator generates a high level when earth leakage current is greater than the fixed level.

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 Surge Margin.
Super Temperature Characteristic of Input Sensitivity.
Wide Operating Temperature Range: TA=.
25°C to +80°C for KA2803B and KA2803BDTF TA =.
25°C to +100.

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Published: Mar 23, 2020 |