Title :
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
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;
Conference_Titel :
Computer Science and Information Technology (ICCSIT), 2010 3rd IEEE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5537-9
DOI :
10.1109/ICCSIT.2010.5565056
