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Tegra Power Consumption

 
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Overview

This article provides information about the power consumtion of the Colibri T20, Colibri T30, Apalis T30 and Apalis TK1 modules used with the Viola Carrier board and Ixora Carrier Board with different operating conditions.

Below are the power consumption results of several test cases demonstrating realistic system configurations at various CPU loads for the Tegra modules.

Test Notes

  • Test results are dependent upon temperature, operating conditions, OS version, BSP version as well as which Tegra module is used. These test results are provided as a reference for expected power consumption behavior of Tegra modules.
  • The image used for testing is beta version and the power consumption of future image releases is expected to improve.

Test Conditions

  • Linux Image version : 2.7
  • All readings are taken at 24-26 degree Celsius room temperature.
  • For current and voltage measurement, YH-112 digital multimeter is used.

Colibri T20 512MB with Viola

For BSP 2.7

S.No Test Case Power Power Power
CPU 2% One CPU 100% Both CPU 100%
1 Colibri T20 512MB V1.2A + Plus Viola 1.1A Carrier Board 4.80V - 1.162W 4.72V - 1.510W 4.67V - 1.751W

Colibri T20 512MB IT with Viola

For BSP 2.7

S.No Test Case Power Power Power
CPU 2% One CPU 100% Both CPU 100%
1 Colibri T20 512MB IT V1.2A + Plus Viola 1.1A Carrier Board 4.85V - 1.082W 4.78V - 1.410W 4.74V - 1.649W

Colibri T30 1GB with Viola

For BSP 2.7

S.No Test Case Power Power Power Power Power
CPU 2% One CPU 100% Two CPU 100% Three CPU 100% All CPU 100%
1 Colibri T30 1GB V1.1F + Plus Viola 1.1A Carrier Board 4.91V - 0.815W 4.46V - 2.363W 4.46V - 2.890W 4.20V - 3.444W 4.14V - 4.239W

Colibri T30 1GB IT with Viola

For BSP 2.7

S.No Test Case Power Power Power Power Power
CPU 2% One CPU 100% Two CPU 100% Three CPU 100% All CPU 100%
1 Colibri T30 1GB IT V1.1A + Plus Viola 1.1A Carrier Board 4.91V - 0.790W 4.58V - 2.395W 4.46V - 2.890W 4.32V - 3.780W 4.17V - 4.616W

Apalis T30 2GB with Ixora

For BSP 2.7

S.No Test Case Power Power Power Power Power
CPU 2% One CPU 100% Two CPU 100% Three CPU 100% All CPU 100%
1 Apalis T30 2GB V1.0C + Ixora Carrier Board V1.1A 12.17V - 3.371W 12.09V - 4.558W 12.05V - 5.157W 11.97V - 6.212W 11.92V - 6.878W
1 Apalis T30 2GB V1.0C + Ixora Carrier Board V1.1A + Resistive Touch Display 7" Parallel (Back-light at 100%) 12.05V - 5.338W 12.01V - 6.533W 11.89V - 7.039W 11.93V - 8.053W 11.85V - 8.887W

Apalis TK1 2GB with Ixora

For BSP 2.7

S.No Test Case Power Power Power Power Power
CPU 2% One CPU 100% Two CPU 100% Three CPU 100% All CPU 100%
1 Apalis TK1 2GB V1.0B + Ixora Carrier Board V1.1A 12.22V - 2.273W 12.10V - 4.501W 11.97V - 6.512W 11.91V - 7.741W 11.81V - 8.940W