全集成全桥直流马达驱动芯片的设计  

Design of Fully-integrated and H-bridge for DC Motor Driver IC

作　　者：郭振宗[1] 何进[1] 罗将[1] 王豪[1] 常胜[1] 黄启俊[1] 

机构地区：[1]武汉大学物理科学与技术学院,湖北武汉430072

出　　处：《微电子学与计算机》2016年第7期33-38,共6页Microelectronics & Computer

基　　金：国家自然科学基金资助项目(61204096;61404094);中央高校基本科研项目(2042015kf0174;2042014kf0238);湖北省自然科学基金(2014CFB694);江苏省自然科学基金(BK20141218)

摘　　要：基于CSMC 0.5μm HV CMOS工艺,实现了一款具有优良动态性能和全面失效保护功能的全集成全桥直流马达驱动芯片.芯片提供了待机、正转、反转和制动四种基本驱动模式,以及脉冲宽度调制（PWM）调速和模拟电压调速两种调速模式;集成了全面的失效保护电路,包括欠压保护电路、过温保护电路和过流保护电路.流片封装后的样片测试结果表明,芯片各工作模式正常;在电源电压分别为5V,4V,3V时,驱动MOS管的导通电阻分别约为0.65Ω,0.8Ω,1Ω;在2.5~5.5V工作电压范围内,可以提供最大值为1A的驱动电流.A fully integrated and H-bridge DC motor driver with excellent dynamic performance and comprehensive fail-safe function has been implemented in CSMC 0.5-μm HV CMOS technology.In addition to operation with four basic modes,such as idle,forward,reverse and brake,this IC also can drive motor with two kinds of speed regulated modes：pulse width modulator（PWM）signal and analog voltage.The IC integrates comprehensive failsafe circuits,including the under voltage protection circuit,over-temperature protection circuit and overcurrent protection circuit.The measured results of packaged IC sample show that all drive modes operated well.The power MOSFET＇s on resistance are about 0.65Ω、0.8Ωand1Ωwhen supply voltage were 5V、4Vand 3V,respectively.The IC can output a maximum of 1Adc current within a supply voltage range of 2.5-5.5V.

关 键 词：马达驱动芯片 PWM 全面失效保护 CMOS 

分 类 号：TN432[电子电信—微电子学与固体电子学]