Design of A Hysteretic-Current-Control Mode LED Driver Based on a 0.6μm BCD Process

摘要：

Based on 0.6μm BCDMOS process, a hysteretic-current-control mode white light LED driver with high accuracy and efficiency is presented in this paper. The driver can work in 6～40V power supply, the maximum output current is up to 1.0A, the maximum switching frequency is up to 1MHz, the output current error is less than ±5％, and the efficiency is greater than 80％. The circuit details of the high-side-current sensor and high-speed comparator, which greatly affect the accuracy of the LED driver, are emphasized in this paper. Then, some simulation and test results of this work are presented.

关键词： Hysteretic-current-control Mode Output Current Error High-side-Current Sensing

作者: Lianxi Liu Zhangming Zhu Yintang Yang

作者单位: School of Microelectronics, Xidian University, Xian710071,China Key Lab of Ministry of Education for Wide Band-Gap Semiconductor Materials and Device, Xian710071 ,China

会议类型: 国际会议

会议名称: 2011 IEEE 9th International Conference on ASIC(2011年第九届IEEE国际专用集成电路大会)

会议地点: 厦门

会议语种:英文

页码: 103-106

在线出版日期: 2011-10-25（万方平台首次上网日期，不代表论文的发表时间）