Digitally Isolated 2-Channel, Wide DC Binary Input Module Reference Design TIDA-00420 (ACTIVE)

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Key Document

Description

This reference design enables translation of high DC voltage inputs upto 300VDC into binary logic level voltages that a typical electronic circuit can handle. This solution is very flexible, not only handling input voltages from 18 to 300VDC but also allowing programmable switching thresholds to set binary levels. In addition, this solution enables < ± 3.0% (± 1V measured value step size) error in voltage detection coupled with reliable isolation > 2kV RMS.

Features
  • High accuracy voltage measurement capability (< ±3% error)
  • Flexible solution handling input voltages from 18V to 300VDC
  • MCU enables programmable switching thresholds
  • Excellent long term reliability with digital isolation included
  • Provides option for wetting current control
  • Output can be either I2C or digital output

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Design Files

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ISO1541  2.5-kVrms isolated unidirectional clock, bidirectional I2C isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
MSP430G2332  MSP430G2x32, MSP430G2x02 Mixed Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
SN6501  Low-noise, 350-mA, 410-kHz transformer driver for isolated power supplies  Isolation  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ISO1541 Download Download
MSP430G2332 Download Download
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SN6501 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 725 14 Sep 2016
Design files (7)
Title Type Size (KB) Date
ZIP 987 14 Sep 2016
ZIP 234 14 Sep 2016
ZIP 254 14 Sep 2016
ZIP 102 14 Sep 2016
ZIP 1717 14 Sep 2016
ZIP 728 14 Sep 2016
ZIP 522 14 Sep 2016

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