A LED driver IC with constant current and temperature compensation

Author

Jianping, Qiu ; Lenian, He

Author_Institution

Dept. of Electr. & Electron. Eng., Zhejiang Univ., Hangzhou, China

Volume

5

fYear

2010

fDate

9-11 July 2010

Firstpage

162

Lastpage

164

Abstract

A LED driver IC with constant current and temperature compensation is presented. The IC is trimmed to provide constant current of 20mA±5% at an input voltage of 6.0-90V. The IC can be used as a two terminal constant current source or constant current sink. And the current is well compensated, at the temperature range of -20 °C ~100°C,the temperature coefficient is 18ppm/°C when input voltage is 40V.All the temperature coefficients at all input voltage range are below 80 ppm/°C. The IC is design with SOI technology.

Keywords

driver circuits; integrated circuit design; light emitting diodes; silicon-on-insulator; LED driver IC; SOI technology; constant current sink; temperature -20 C to 100 C; temperature coefficients; temperature compensation; two terminal constant current source; voltage 40 V; voltage 6 V to 9 V; Driver circuits; Integrated circuits; Light emitting diodes; MOSFET circuits; Regulators; Temperature distribution; Threshold voltage; LED driver; constant current; linear; temperature compensation;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Information Technology (ICCSIT), 2010 3rd IEEE International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5537-9

Type

conf

DOI

10.1109/ICCSIT.2010.5565056

Filename

5565056