一种低功耗高可靠上电复位电路的设计  

Design of a Low Power and High Reliability Power-on Reset Circuit

作　　者：王小曼[1] 原义栋[1] 张海峰[1] 

机构地区：[1]中国电力科学研究院通信与用电技术分公司,北京100192

出　　处：《微电子学》2011年第5期681-684,共4页Microelectronics

摘　　要：设计了一种低功耗高可靠上电复位电路。为了减小阈值电压受工艺及温度偏差的影响,采用改进的Kuijk带隙基准源结构;同时,设计了带迟滞功能的双阈值电压检测电路,减小了电源噪声对电路输出的干扰。采用HHNEC 0.13μm CMOS工艺,对电路进行仿真。结果显示,在5V电源电压及典型工艺和温度下,整体电路消耗稳态电流为8.5μA;在不同的电压、工艺角及温度组合下,均实现了稳定可靠的上电复位和低电平保护功能,达到了设计要求。A power-on reset（POR） circuit with low power and high reliability was presented.To reduce effect of the process and temperature variations on threshold voltage,an improved Kuijk bandgap voltage reference was adopted in this design.Double threshold voltage detection circuit with hysteresis was designed to improve noise-tolerance performance for power supply.The POR circuit was simulated based on HHNEC＇s 0.13 μm CMOS process.Simulation results showed that,with typical process and temperature,the circuit consumed 8.5 μA of power at 5 V supply.The circuit realized stable and reliable power-on reset and low-voltage protection function at different combinations of supply voltage,process corner and temperature.

关 键 词：上电复位电路 迟滞 带隙基准源 

分 类 号：TN492[电子电信—微电子学与固体电子学]