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CLT3-4B - Current limited over-voltage protected quad digital termination

Description

The CLT3-4 is a quadruple input digital termination device designed for 24 V dc automation applications.

It provides the front-end circuitry of a digital input module (I/O) in industrial automation, and drives an isolating opto-coupler.

Figure 1.

Features

  • 4 channel topology.
  • Wide range input dc Voltage:.
  • VI= - 0.3 to 30 V with RI = 0.
  • VI = - 30 to 30 V with RI = 1.8 kΩ.
  • Low side configuration with common ground.
  • Current limiter:.
  • IGEN = 3 mA.
  • Input current limiter activation voltage < 5 V.
  • Temperature compensated operation.
  • Opto-coupler drive:.
  • No coupler activation below 1.5 mA input current.
  • Input protection (RI = 1.2 kΩ):.
  • IEC 61000-4-2 electrosta.

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Datasheet Details

Part number CLT3-4B
Manufacturer STMicroelectronics
File Size 188.67 KB
Description Current limited over-voltage protected quad digital termination
Datasheet download datasheet CLT3-4B Datasheet

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Full PDF Text Transcription

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CLT3-4B Current limited over-voltage protected quad digital termination Features ■ 4 channel topology ■ Wide range input dc Voltage: – VI= - 0.3 to 30 V with RI = 0 – VI = - 30 to 30 V with RI = 1.8 kΩ – Low side configuration with common ground ■ Current limiter: – IGEN = 3 mA – Input current limiter activation voltage < 5 V – Temperature compensated operation ■ Opto-coupler drive: – No coupler activation below 1.5 mA input current ■ Input protection (RI = 1.
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