Capacitive Frost or Ice Detection Reference Design, Resolution of <1mm, Temperature Drift <0.25%

(ACTIVE) TIDA-01465

Description & Features

Technical Documents

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Key Document

Description

Frost and ice buildup on cooling bodies and evaporators can significantly decrease system energy efficiency in many appliance applications such as refrigerators, air conditioners, and freezers. This sensor reference design helps to achieve the more stringent energy efficiency requirements of modern appliances through reducing the number of unnecessary defrost cycles by sensing the amount of ice buildup (resolution of < 1mm) on enclosures and metal surfaces of cooling bodies to trigger defrost cycles only when necessary, versus the traditional defrost trigger method of using a timer or temperature sensor.

Features
  • Resolution of < 1mm, temperature drift < 0.25%
  • Reduce energy by minimizing defrost cycle of melting ice or frost on evaporator coils to eliminate unnecessary defrost cycles
  • Fit for universal application in all types of refrigeration equipment with great sensitivity, high reliability, and low cost
  • Accurately sense thickness of ice or frost accumulated on surface of evaporating coils of refrigeration equipment

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


  




TI Devices (4)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
FDC2214  Noise-immune Capacitive Sensing Solution for Proximity Sensing   Capacitive Sensing  Sample & Buy View Design Kits & Evaluation Modules
LP2985-N  Micropower 150-mA Low-Noise Ultra-Low-Dropout Regulator in SOT-23 packages  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5528  16-Bit Ultra-Low-Power Microcontroller, 128KB Flash, 8KB RAM, USB, 12Bit ADC, 2 USCIs, 32Bit HW MPY  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TPD2E001  Low-Capacitance 2-Channel +/-15kV ESD Protection Array for High-Speed Data Interfaces  Circuit Protection  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

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

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 10999 09 Aug 2017 170
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 205 05 Sep 2017 27
ZIP 1008 05 Sep 2017 44
PDF 672 05 Sep 2017 43
PDF 184 05 Sep 2017 40
PDF 33 05 Sep 2017 45
PDF 253 05 Sep 2017 125
Related Tools & Software

Reference Designs (2)

Design Kits & Evaluation Modules (1)

Name Part Number Tool Type
FDC2214 with Two Capacitive Sensors Evaluation Module  FDC2214EVM  Evaluation Modules & Boards 


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