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首页 > Products > Motor Fan Driver > Hall Element > Bipolar Linear All Pole Hall Sensor >Cxha3138 integrates Hall sensor and collector open circuit complementary output driver which is mainly used for electronic conversion of two-phase brushless DC fan The chip integrates Hall sensor reference voltage
Cxha3138 integrates Hall sensor and collector open circuit complementary output driver which is mainly used for electronic conversion of two-phase brushless DC fan The chip integrates Hall sensor reference voltage

In DC fan application, sometimes the power supply is connected reversely. Cxha3138 has a built-in reverse protection diode, which can only protect the chip but not the coil. If necessary, the coil can be connected with an external diode to provide protection for the coil when the power supply is reversed. When the flux density (b) is greater than the working power (BOP), do turns on the output low level, and DOB turns off the output high level. The state of the two output pins will remain until B is lower than the release point (BRP), and then do and DOB will change their respective output states

Cxha3138 integrates Hall sensor and collector open circuit complementary output driver which is mainly used for electronic conversion of two-phase brushless DC fan The chip integrates Hall sensor reference voltage
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1.产品概述       2.产品特点     wZD嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)wZD嘉泰姆

5.产品封装       6.电路原理图  wZD嘉泰姆

7.相关产品wZD嘉泰姆

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     CXHA3138 集成了霍尔传感器和集电极开路互补输出驱动器,主要用于电子转换的二相无刷直流风扇。芯片 内部集成了霍尔感应器、基准电压、前置放大器、施密特比较器以及互补集电极开路输出(DO、DOB)。 在直流风扇应用中,有时会发生电源接反的情况,CXHA3138 内置了一个反接保护二极管,该反接保护二极 管只能给芯片提供保护而不能给线圈提供保护。如有必要,线圈可外接一个二极管,在电源反接的时候给 线圈提供保护。 当磁通密度(B)大于工作电(Bop),DO 开启输出低电平,同时 DOB 关闭输出高电平。两个输出管脚的 状态会一直保持到 B 低于释放点(Brp),这时 DO、DOB 改变各自的输出状态。

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单片集成,体积小,可靠性高wZD嘉泰姆

较宽的电压工作范围:3.5V 至 20VwZD嘉泰姆

内置霍尔传感器wZD嘉泰姆

400mA 平均电流输出能力wZD嘉泰姆

集电极开路,互补输出wZD嘉泰姆

内置电压反转保护二极管wZD嘉泰姆

采用较小的 TO-94 封装wZD嘉泰姆

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双线圈无刷直流风扇wZD嘉泰姆

回转计数器wZD嘉泰姆

双线圈无刷直流电机wZD嘉泰姆

速度测量wZD嘉泰姆

   技术规格书(产品PDF) 返回TOP wZD嘉泰姆


     需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!wZD嘉泰姆

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