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KA2803B - Earth Leakage Detector

General Description

The KA2803B is designed for use in earth leakage circuit interrupters, for stable operation of the AC line in breakers.

The input of the differential amplifier is connected to the secondary coil of ZCT(Zero Current Transformer).

Key Features

  • Low Power Consumption PD =5mW, 100V/200V Built-in Voltage Regulator High Gain Differential Amplifier 0.4mA Output Current Pulse to Trigger SCR' S Low External Part Count DIP Package (8-DIP), High Packing Density High Noise Immunity, Large Surge Margin Super Temperature Characteristic of Input Sensitivity Wide Operating Temperature Range (TA = -25°C ~ +80°C).
  • Operation from 12 to 20V Input Descript.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.fairchildsemi.com KA2803B Earth Leakage Detector Features • • • • • • • • • Low Power Consumption PD =5mW, 100V/200V Built-in Voltage Regulator High Gain Differential Amplifier 0.4mA Output Current Pulse to Trigger SCR' S Low External Part Count DIP Package (8-DIP), High Packing Density High Noise Immunity, Large Surge Margin Super Temperature Characteristic of Input Sensitivity Wide Operating Temperature Range (TA = -25°C ~ +80°C) • Operation from 12 to 20V Input Description The KA2803B is designed for use in earth leakage circuit interrupters, for stable operation of the AC line in breakers. The input of the differential amplifier is connected to the secondary coil of ZCT(Zero Current Transformer).