Nuclear Techniques ›› 2016, Vol. 39 ›› Issue (2): 20203-020203.doi: 10.11889/j.0253-3219.2016.hjs.39.020203

• LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS • Previous Articles     Next Articles

Effects of radiation temperature on the radiation-sensitive parameters of bipolar linear voltage regulator

SUN Jing1,2, LU Wu1, DENG Wei2, GUO Qi1, YU Xuefeng1, HE Chengfa1   

  1. 1 Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Key Laboratory of Electronic Information Materials and Devices,Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi 830011, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2015-08-10 Revised:2015-11-17 Online:2016-02-10 Published:2016-02-17

Abstract:

Background: In the complex space environment, the regulator parameter can be changed, which is a serious threat to the reliability and security of an integrated circuit system. Purpose: This study aims at the effect of temperature on the radiation-sensitive parameters of linear regulators exposed to ionizing radiation. Methods: Ion radiation effect tests were carried out at different temperature for the three regulators of the same model produced by ON Semiconductor (ONS), National Semiconductor (NSC) and one Chinese company, respectively. The key electrical parameters of the regulator, such as output voltage, input current and line regulation, varies with total ion radiation dose range from 0 Gy to 1 000 Gy under various centigrade temperatures of 25℃, 70℃ and 100℃. Results: The damage to the output voltage and the input current of the three regulators under irradiation is enhanced with the increased temperatures. The damage to line regulation of ONS and NSC regulators under irradiation at ‘elevated temperature’ is smaller than that at room temperature. There was no effect of temperature observed on input current of ONS regulator and line regulation of the regulator provided by the Chinese company. Conclusion: The effect of temperature on radiation-sensitive parameters of the linear regulators mainly depends on trap charge.

Key words: Bipolar linear voltage regulator, Radiation effect, Irradiation temperature

CLC Number: 

  • TL72