Isolated Synchronous Serial Communication Module

(ACTIVE) TIDA-00300

Description & Features

Technical Documents

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Key Document

Description

This reference design provides a simple means through which to isolate I2C or SPI type communication lines. This is often required in Grid Infrastructure applications such as, protertion relays and circuit breakers, where high voltages are involved. This reference design provides the complete solution in which, both power isolation and signal isolation is handled.

Features
  • Module designed such that it can be adopted with designs requiring isolation for Communication channels (Transformer and Motor / Generator protection)
  • Designed to Operate with 24V Auxiliary DC input (typical in smart grid)
  • Optimized design for Multiple Isolated & Non-Isolated Supplies using single Converter
  • Device capable of providing signal isolation of 2500 Vrms for 1 minute per UL and 4242 Vpk per VDE

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Schematic/Block Diagram

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Test Data

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Design Files

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Bill of Materials (BOM)

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TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ISO1541  2.5 kVrms Isolated Unidirectional Clock, Bidirectional I2C Isolators  Isolation  Sample & Buy View Design Kits & Evaluation Modules
ISO7141CC  4242-VPK Small-Footprint and Low-Power 3/1 Quad Channel Digital Isolator with Noise Filter  Isolation  Sample & Buy View Design Kits & Evaluation Modules
LM5017  7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS7A16  60V, 5µA Iq, 100mA low-dropout (LDO) voltage regulator with enable and power good  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A30  Vin -3V to -36V, -200mA, Ultra-Low-Noise, High-PSRR, Low-Dropout (LDO) Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A47  36-V, 1-A, 4.17-μVRMS, RF low-dropout (LDO) voltage regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ISO1541 Download Download
ISO7141CC Download Download
LM5017 Download Download
Download Download
TPS7A16 Download Download
Download Download
TPS7A30 Download Download
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TPS7A47 Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 10261 16 Oct 2014 0
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 1424 16 Oct 2014 0
ZIP 2747 16 Oct 2014 0
PDF 1632 16 Oct 2014 0
ZIP 644 16 Oct 2014 0
PDF 88 16 Oct 2014 0
PDF 683 16 Oct 2014 0

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