AH276 are integrated Hall sensors with output drivers, mainly designed for electronic commutation of brush-less DC Fan. This IC internally includesthe regulator, protecting diode, Hall plate, amplifier,comparator, and a pair of complementaryopen-collector outputs (DO, DOB).While the magnetic flux density (B) is larger thanoperate point (Bop), DO will turn on (low), andmeanwhile DOB will turn off (high). Each output islatched until B is lower than release point (Brp),and then DO、DOB transfer each state.For DC fan application, sometimes need to testpower reverse connection condition. Internal diodeonly protects chip-side but not for coil-side. Ifnecessary, add one external diode to block the reverse current from coil-side.
推荐内容
开源项目推荐 更多
热门活动
热门器件
用户搜过
随便看看
热门下载
热门文章
热门标签
京公网安备 11010802033920号
Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved
评论