Title :
Design of 16-bits constant-current LED driver
Author :
Wang, Yi ; Gao, Mingkun ; Guo, Donghui
Author_Institution :
Dept. of Electron. Eng., Xiamen Univ., Xiamen, China
Abstract :
A 16-bits Constant-Current LED Driver Integrated Circuit (abbreviated as “Driver”) is presented in this paper. It is fabricated with 0.6-μm 2P3M CMOS process in an active area of 0.9mm × 0.9mm. The driver provides 16 open-drain, constant current sinking LED driver outputs. All the constant-current outputs are programmed together by a signal external resistor. Post simulation result shows that each output channel provides constant current up to 70mA within possible temperature range of -40°C to 125°C and power supply range of 3V to 5.5V. The current match between each bit is 3% and between each technical corner is less than 6% typically. More importantly, it includes the power-on reset and over-heating protection circuits, which help protect the IC against logic error and burnt up.
Keywords :
CMOS logic circuits; LED displays; driver circuits; integrated circuit design; logic design; CMOS process; IC protection; constant-current LED driver integrated circuit; logic error; open-drain LED driver outputs; overheating protection circuits; power-on reset; signal external resistor; size 0.6 mum; temperature -40 degC to 125 degC; voltage 3 V to 5.5 V; Driver circuits; Light emitting diodes; Mirrors; Power supplies; Resistors; Temperature distribution; LED Driver; constant current; overheat protection; power-on-reset;
Conference_Titel :
Anti-Counterfeiting Security and Identification in Communication (ASID), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-6731-0
DOI :
10.1109/ICASID.2010.5551839
