Automotive Ultrasonic Fluid Level/Quality Measurement Reference Design


Design files


TI reference design TIDA-00322 is an automotive liquid level and fluid identification measurement system. It is based on the dual-channel TDC1000-Q1 ultrasonic AFE and the real-time microcontroller C2000. This reference design can also be used with the TDC1000 for industrial/consumer applications. This solution supports 4.5-40V system capabilities with reverse battery protection. 

For prototyping and signal accessibility for product development, TI recommends using the TDC1000-C2000EVM as the hardware evaluation platform for automotive designs. For industrial or consumer designs, it is recommended to begin evaluation with the TDC1000-TDC7200EVM. This EVM has the ability of using the MSP430 or the TDC7200 as the stop-watch timer; usage of each depends on the time of flight accuracy requirement of the application.

  • Dual Channel Analog-front-end for ultrasonic sensing
  • High voltage circuit to drive the transducer with 30V to penetrate deeper tanks
  • Input voltage range of 6V to 40V with reverse battery protection
  • Automotive qualified Bill of Material
  • External RTD Measurement  to monitor temperature changes that affect the medium's speed of sound
  • CAN transceiver for flexibility of adding future CAN stack
??image.gallery.download_en_US?? View video with transcript Video

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.

TIDU616.PDF (1671 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


Detailed overview of design layout for component placement


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

TIDC732.ZIP (388 K)

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


Includes TI products in the design and potential alternatives.

Boost converters (integrated switch)

TPS61170-Q13-V to 18-V wide input range, 1.2-A boost converter in 2-mm x 2-mm QFN package, AEC-Q100 qualified

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS54260-Q1Automotive 3.5V to 60V, 2.5A Step-down Converter with Eco-Mode™

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28035C2000™ 32-bit MCU with 60 MHz, 128 KB flash, CLA

Data sheet: PDF
C2000 real-time microcontrollers

TMS320F28035-Q1Automotive C2000™ 32-bit MCU with 60 MHz, 128 KB flash, CLA

Data sheet: PDF
CAN & LIN transceivers & SBCs

HVDA551-Q1Automotive 5-V CAN Transceiver with I/O Level Adapting and Low-Power Mode Supply Optimization

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS79501-Q1Automotive 500-mA, adjustable low-dropout voltage regulator with enable

Data sheet: PDF
OR gates

SN74LVC1G32-Q1Automotive single 2-input, 1.65-V to 5.5-V OR gate

Data sheet: PDF | HTML
Ultrasonic sensor AFEs

TDC1000Ultrasonic sensing analog front end for level and concentration sensing

Data sheet: PDF | HTML
Ultrasonic sensor AFEs

TDC1000-Q1Automotive Ultrasonic Sensing Analog Front End for Level and Concentration Sensing

Data sheet: PDF | HTML

Start development


GUI for evaluation module (EVM)

TDC1000-C2000EVM GUI v1.2.0.83 (TIDA-00322) (Rev. B) — TIDC731B.ZIP (166928 K)

lock = Requires export approval (1 minute)

Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* User guide TIDA-00322 Design Overview (Rev. A) May 26, 2015
Test report TIDA-00322 Test Results Oct. 23, 2014

Related design resources

Hardware development

TDC1000-C2000EVM Ultrasonic Sensing for Level and Concentration Measurement Evaluation Module

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​