TIDA-01353

Electronically Commutated Motor Reference Design for HVAC Blowers with Low BOM Cost

TIDA-01353

Design files

Overview

The TIDA-01353 reference design is a discrete MOSFET based three-phase ECM control module for driving brushless (BLDC) motors rated up to 375W in HVAC blower applications using a sensorless trapezoidal control method. The cycle-by-cycle overcurrent protection feature protects the power stage from over currents and the board can work up to an ambient temperature of 85°C. This design also incorporates opto-isolation for 5 preset blower speed terminals available to the user, and is a direct replacement reference design for permanent split capacitor (PSC) motors.

Features
  • On-board temperature sensing
  • Opto-coupling for circuit isolation
  • Low cost, high efficiency sensorless ECM motor controller
  • Current sensing using single shunt reistor on DC bus
  • Sensorless trapezoidal control using the TI InstaSPIN-BLDC back-EMF integration method
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUCE0A.PDF (4316 KB)

Reference design overview and verified performance test data

TIDRPD2.PDF (603 KB)

Detailed overview of design layout for component placement

TIDRPD1.PDF (85 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRPD4.ZIP (2391 KB)

Files used for 3D models or 2D drawings of IC components

TIDCD21.ZIP (1185 KB)

Design file that contains information on physical board layer of design PCB

TIDRPD3.PDF (3605 KB)

PCB layer plot file used for generating PCB design layout

TIDRPD0.PDF (2673 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

UCC28881700-V Lowest Quiescent current off-line switcher

Data sheet: PDF | HTML
Half-bridge drivers

UCC277144-A, 600-V half bridge gate driver

Data sheet: PDF | HTML
General-purpose op amps

TLV316Single, 5.5-V, 10-MHz, RRIO operational amplifier

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430F513225 MHz MCU with 8KB Flash, 1KB SRAM, 10-bit ADC, comparator, DMA, 16-bit High Resolution timer

Data sheet: PDF | HTML
ESD protection diodes

TPD1E10B0612-pF, ±5.5V, ±30-kV ESD protection diode in 0402 and SOD-523 package

Data sheet: PDF | HTML
Analog temperature sensors

LMT841.5V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Electronically Commutated Motor Ref Design for HVAC Blowers With Low BOM Cost (Rev. A) Feb 23, 2017
White paper How to optimize building and home automation designs for energy efficiency Apr 8, 2020

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