Signal Processing Subsystem and Current Input Based Self Power for Breaker Applications (ACB/MCCB)

(ACTIVE) TIDA-00498

Description & Features

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Key Document

Description

THe TIDA-00498 reference design features signal processing front-end and self-power block for electronic trip unit (ETU) used in circuit breakers.  A FRAM based micro-controller is used for processing current inputs from signal conditioning amplifiers for 3-phase, neutral and ground current. Two gains are used to extend the range for phase current measurement.

This reference design can also self-power using rectified current input. TIDA-00498 is desiged for fast and repeatable tripping (within 30mS) for wide current and temperature range.

Features
  • Measures three currents (phase) with input range of (0.2 to 12 INOMINAL) and two current (Neutral, Earth) with (0.05 to 2 INOMINAL) within ±3%
  • Uses TI’s MSP430™ FRAM MCU for Fast Startup, Startup Time Including One-Cycle RMS Computation is < 30 ms
  • Undervoltage Sense Provides Approximate 200-μs Reset Time After Power-Up
  • Self-Power Supply (Rectified Current Input Based) With MOSFET-Based Shunt Regulation

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


  



Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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TI Devices (10)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD17571Q2  30V N-Channel NexFET Power MOSFETs, CSD17571Q2  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
CSD18537NKCS  60-V, N-Channel NexFET™ Power MOSFET  MOSFETs  Sample & Buy Not Available
LM2903  Dual Differential Comparator  Amplifiers  Sample & Buy Not Available
LM4041B  Adjustable Precision Micropower Shunt Voltage Reference, 0.2% accuracy  Voltage references  Sample & Buy Not Available
LM5017  7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LM8364  Active Low Voltage Monitor with Low Quiescent Current and 2.5% Threshold Accuracy   Power management  Sample & Buy Not Available
LMT87  2.7V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
LMV551  3 MHz, Micropower RRO Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR5969  MSP430FR5969 16 MHz Ultra-Low-Power Microcontroller featuring 64 KB FRAM, 2 KB SRAM, 40 IO  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
OPA4314  Quad, 3MHz, Low-Power, Low-Noise, RRI/O, 1.8V CMOS Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD17571Q2 WSON (DQK)| 6 Download Download
CSD18537NKCS Download
LM2903 Download Download
Download Download
Download Download
Download -
Download Download
LM4041B Download Download
Download -
Download Download
LM5017 Download Download
Download Download
LM8364 Download Download
LMT87 Download Download
Download
Download
LMV551 Download Download
Download Download
MSP430FR5969 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 3142 03 Jul 2015 13
Design files (7)
Title Abstract Type Size (KB) Date Views
ZIP 715 04 Aug 2015 14
ZIP 5457 04 Aug 2015 9
ZIP 963 04 Aug 2015 10
PDF 430 04 Aug 2015 9
PDF 369 04 Aug 2015 9
PDF 257 04 Aug 2015 14
PDF 1034 04 Aug 2015 22

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