TIDA-00661 Reference Design

Texas Instruments

High Resolution: Fast Startup Analog Front End for Air Circuit Breaker Reference Design

Description

The TIDA-00661 reference design features signal processing front-end subsystem for electronic trip units (ETU) used in air circuit breakers (ACB) or molded case circuit breakers (MCCB). This subsystem consists of Delta-Sigma ADC with 24-Bit resolution and fast startup (

Features
  • Measurement of AC input from 10V to 750V and 50mA to 25A within ±1% with fixed gainVoltage and Current inputs are interfaced to a 24-Bit Delta-Sigma ADC with Fast startup (DC-DC converters configured in Fly-Buck configuration to generate supply output (2W/ 8W)Provides option to measure 3 earth fault current inputs with a single gain opamp interfaced to 12-Bit internal ADC of MCUOn-Board potential divider provided to measure the AC input voltage and Burden resistors are provided to connect external CT secondary input for current measurementRegulators generate 3.3V and 5V (MCU and ADC board): ±2.5V and 3V (ADC analog supply)
Applications
  • Process analytics
  • Solar power optimizer
  • Multifunction relay
  • Residential breakers
  • Remote power distribution automation
  • Grid asset monitoring
  • AC analog input module
  • Processor module
  • Wired communication modules
  • Compact relay
  • Contractor circuit
  • Substation automation
  • Circuit breaker (ACB
  • MCCB
  • VCB)
  • Smart electrical panel
Product Categories
  • Data converters

Parts

Part Number Name Companion Part
LM2903 LM2903 Buy Datasheet
LM4041B LM4041B Buy Datasheet
LM5017 LM5017 Buy Datasheet
LM8364 LM8364 Buy Datasheet
LMT87 LMT87 Buy Datasheet
LMV614 LMV614 Buy Datasheet
MSP430FR5969 MSP430FR5969 Buy Datasheet
TPS7A6533-Q1 TPS7A6533-Q1 Buy Datasheet

Bill Of Materials

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Schematic

Quickly understand overall system functionality.

Download the schematic for TIDA-00661

Other Documents

Title Updated Type Size (KB)
TIDA-00661 Gerber 14 Dec 2015 ZIP 660
TIDA-00661 Altium 14 Dec 2015 ZIP 9909
TIDA-00661 Layer Plots 14 Dec 2015 ZIP 2825
TIDA-00661 Assembly Drawing 14 Dec 2015 ZIP 625
TIDA-00661 BOM 14 Dec 2015 ZIP 504
TIDA-00661 Schematic 14 Dec 2015 ZIP 1380