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KA2803 - Earth Leakage Detector

Datasheet Summary

Description

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).

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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Datasheet preview – KA2803

Datasheet Details

Part number KA2803
Manufacturer ON Semiconductor
File Size 830.18 KB
Description Earth Leakage Detector
Datasheet download datasheet KA2803 Datasheet
Additional preview pages of the KA2803 datasheet.

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Full PDF Text Transcription

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Earth Leakage Detector KA2803 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.
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