Automotive HVAC control reference design with HMI TIDA-020010 (ACTIVE)

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Key Document

Description

This reference design offers a cost-effective solution for a heating, ventilation, and air conditioning (HVAC) human-machine interface (HMI) application. This reference design incorporates a synchronous step-down converter, multiple channel half-bridge motor driver for brushed DC motors (BDC), multiple channel light-emitting diode (LED) driver, which sets LED light intensity according to the ambient light intensity, that is measured by the ambient light sensor, The high-side switch on this reference design drives various  loads, multiple hall-sensors are used for contactless measurement of the rotary knobs, tracking voltage regulator supplies off board sensors and multiplexer is used to multiplex multiple analog sensor outputs to the microcontrollers analog to digital converter (ADC).

Features
  • Withstands reverse battery protection
  • Drives up to 6 BDC motors
  • Automatic LED dimming based on ambient light intensity
  • Contactless rotation detection for the rotary knobs
  • Fully protected high-side power switch with accurate current sense

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Schematic/Block Diagram

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Design Files

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TI Devices (8)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DRV5055-Q1  Automotive, high accuracy 3.3 V or 5 V ratiometric bipolar Hall effect sensor family  Magnetic sensors  Sample & Buy View Design Kits & Evaluation Modules
DRV8912-Q1  Automotive 12 channel half bridge motor driver  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
LMR36006-Q1  4.2-V to 60-V, 0.6-A ultra-small synchronous step-down converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
OPT3001-Q1  Automotive digital ambient light sensor (ALS) with high-precision human-eye response   Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
SN74LV4051A-Q1  Automotive Catalog 8-Channel Analog Multiplexer/Demultiplexer  Switches & multiplexers  Sample & Buy View Design Kits & Evaluation Modules
TLC6C5716-Q1  Automotive 16 Channel Full Diagnostics Constant Current RGB LED Driver  LED drivers  Sample & Buy View Design Kits & Evaluation Modules
TPS1H100-Q1  40-V, 100-mOhm 1-Ch Smart High Side Switch  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS7B4250-Q1  Automotive 50mA 40V Voltage-Tracking LDO With 5mV Tracking Tolerance  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DRV5055-Q1 Download Download
Download
DRV8912-Q1 Download -
LMR36006-Q1 Download Download
OPT3001-Q1 Download Download
SN74LV4051A-Q1 Download Download
Download Download
Download Download
TLC6C5716-Q1 Download -
TPS1H100-Q1 Download Download
TPS7B4250-Q1 Download Download

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Technical Documents

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Datasheet (7)
Title Type Size (KB) Date
PDF 1298 20 Dec 2018
PDF 707 20 Aug 2018
PDF 1881 23 Jul 2018
PDF 1242 14 Jun 2018
PDF 1732 14 Sep 2017
PDF 1071 28 Sep 2016
PDF 1934 28 Jan 2015
User guides (1)
Title Type Size (KB) Date
PDF 5832 01 Feb 2019
Design files (6)
Title Type Size (KB) Date
ZIP 486 01 Feb 2019
ZIP 2300 01 Feb 2019
PDF 1284 01 Feb 2019
PDF 354 01 Feb 2019
PDF 56 01 Feb 2019
PDF 535 01 Feb 2019

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