Automotive Door Control Switch Reference Design


Design files


This automotive door control switch reference design showcases a proof-of-concept solution for an automotive door control switch panel that communicates wirelessly to the door side mirror, window lift and door lock mechanisms. Using TI's automotive qualified Bluetooth® low energy + MCU CC2541-Q1 system-on-chip solution, this reference design enables cost, weight, and ultimately fuel savings by replacing expensive and heavy cable harnesses.

  • Simple proof-of-concept design demonstrating our Bluetooth® low energy for automotive control applications
  • Enables the replacement of wires and harnesses through a robust and mature Bluetooth ultra-low power SoC solution with full Bluetooth low energy certification
  • Dual-power input includes coin cell battery mode for fully independent portable operation
  • Wide input voltage range 3V to 50V LDO for direct car battery operation with integrated reverse battery protection
  • Functionality in start-stop and cold start environments
  • AEC-Q100 qualified device
  • Automotive-qualified CC2541-Q1 available (Note: There is a slight pinout change from CC2541)
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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.

TIDU710.PDF (771 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


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

TIDC835.ZIP (702 K)

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


Includes TI products in the design and potential alternatives.

Low-power 2.4-GHz products

CC2541Bluetooth® Low Energy and proprietary wireless MCU

Data sheet: PDF
Automotive LED drivers

TPS92638-Q1Automotive 8-channel Linear LED driver with PWM dimming

Data sheet: PDF | HTML
ESD protection diodes

TPD4E001-Q1Automotive Quad 1.5-pF, 5.5-V, ±8-kV ESD protection diode with VCC pin for USB 2.0

Data sheet: PDF | HTML

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Support software

TIDC836 TIDA-00356 Hardware Files

Technical documentation

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Type Title Date
User guide TIDA-00356 Design Considerations Jan. 05, 2015
Test report TIDA-00356 Test Results Jan. 05, 2015

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