Automotive Wireless External Mirror Control Reference Design

(ACTIVE) TIDA-00357

Description & Features

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Description

This automotive wireless external mirror control reference design showcases a proof-of-concept solution for an automotive power side view mirror that communicates wirelessly with a control switch. Using TI's automotive-qualified BLE + MCU CC2541-Q1 system-on-chip solution, this reference design enables cost, weight, and fuel savings by replacing expensive and heavy cable harnesses. This SoC also pairs seamlessly with TI's integrated H-bridge motor driver solutions, DRV8801-Q1 and DRV8802-Q1, for fold and mirror position adjustment features. Also, to drive the mirror's heating element, TI's single channel integrated smart FET TPS1H100B-Q1 is used.

Features
  • AEC-Q100 qualified devices
  • Automotive-qualified CC2541-Q1 available (Note: There is a slight pinout change from CC2541)
  • Allows the replacement of wires through a robust and mature Bluetooth ultra-low power SoC solution with full Bluetooth low energy certification
  • Single H-bridge motor driver and dual H-bridge motor driver solutions with integrated protection features of overcurrent, thermal, and undervoltage lockout for higher system reliability
  • Wide input voltage range 3V to 50V LDO for direct battery connection with integrated reverse battery protection
  • Functionality in start-stop environments

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


  



Schematic/Block Diagram

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Test Data

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CC2541  Bluetooth low energy and proprietary wireless MCU  SimpleLink Solutions  Sample & Buy View Design Kits & Evaluation Modules
DRV8801-Q1  Automotive 2.8A Brushed DC Motor Driver with Current Sense (PH/EN Ctrl)  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
DRV8802  1.6A Dual Brushed DC motor Driver with Inrush Protection (PH/EN Ctrl)  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
TPS55340-Q1  Automotive Integrated, 5-A 40-V Wide Input Range Boost/SEPIC/Flyback DC-DC Regulator  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CC2541 Download Download
DRV8801-Q1 Download -
DRV8802 Download -
TPS55340-Q1 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 (2)
Title Abstract Type Size (KB) Date
PDF 456 05 Jan 2015
PDF 671 05 Jan 2015
Design files (3)
Title Abstract Type Size (KB) Date
ZIP 649 05 Jan 2015
PDF 231 05 Jan 2015
PDF 397 05 Jan 2015
Related Tools & Software

Software (1)



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