半导体学报2008，Vol.29Issue(8)：1529-1534,6.
一种宽电源电压带隙基准源的设计
Design of a Bandgap Reference with a Wide Supply Voltage Range
摘要
Abstract
An on-chip voltage reference with a wide supply voltage range is required by some applications,especially that of power management (PM) controller chips applied to telecommunication,automotive,lighting equipment,etc,when high power supply voltage is needed.Accordingly,a new bandgap reference with a wide supply voltage range is proposed.Due to the improved structure,it features a high power supply rejection ratio (PSRR) and high temperature stability.In addition,an auxiliary micro-power reference is introduced to support the sleep mode of the PM chip and reduce its standby power consumption.The auxiliary reference provides bias currents in normal mode and a 1.28V reference voltage in sleep mode to replace the main reference and save power.Simulation results show that the reference provides a reference volt-age of 1.27V,which has a 3.5mV drift over the temperature range from -20 to 120℃ and 56μV deviation over a supply voltage range from 3 to 40V.The PSRR is higher than 100dB for frequency below 10kHz.The circuit was completed in 1.5μm BCD (Bipolar-CMOS-DMOS) technology.The experimental results show that all main expectations are achieved.关键词
宽电源电压/带隙基准/线性调整率/休眠模式/微功耗Key words
wide supply voltage range/bandgap reference/line regulation/sleep mode/micro power分类
信息技术与安全科学引用本文复制引用
孙越明,赵梦恋,吴晓波..一种宽电源电压带隙基准源的设计[J].半导体学报,2008,29(8):1529-1534,6.基金项目
国家自然科学基金(批准号:90707002)和浙江省自然科学基金(批准号:Z104441)资助项目 （批准号:90707002）
Project supported by the National Natural Science Foundation of China (No.90707002) and the Natural Science Foundation of Zhejiang Province (N0.Z104441) （No.90707002）
