高效LED驱动芯片的设计与实现  

Design and Implementation of High Efficiency LED Driver Chip

作　　者：贾怀彬 JIA Huaibin(Nanjing Weimeng Electronics Co.,Ltd.,Jiangsu 210023,China)

机构地区：[1]南京微盟电子有限公司,江苏210023

出　　处：《集成电路应用》2022年第4期1-3,共3页Application of IC

基　　金：工业和信息化部工业转型升级智能制造专项基金(0714-EMTC02-5378/4)。

摘　　要：阐述一种高效的LED驱动芯片的电路设计,它内置100V高压供电电路,减少了芯片的引脚和外围元件,采用连续导通模式恒流控制电路,减小功率管和整流二极管的损耗。此芯片采用100V BCD工艺流片。测试结果表明,芯片工作效率高、输出电流纹波小、系统成本低、寿命长。This paper describes the circuit design of an efficient LED driver chip. It has a built-in 100 V high-voltage power supply circuit, which reduces the pins and peripheral components of the chip. It adopts a continuous conduction mode constant current control circuit to reduce the loss of power tube and rectifier diode. The chip adopts 100 V BCD process. The test results show that the chip has low output current and high ripple efficiency.

关 键 词：集成电路设计 LED驱动 恒电流 BCD工艺 

分 类 号：TN402[电子电信—微电子学与固体电子学] TN873