US91A中文资料Two-Coil Fan Driver - High Voltage (Alarm Output)数据手册Melexis规格书

描述 Description

The Melexis US91A is a one-chip solution for driving two-coil brushless DC cooling fans.
 

Based on Melexis complementary metal oxide semiconductor (CMOS) process, the integrated circuit contains a Hall-effect sensor, dynamic offset correction and low side output drivers.
The integrated alarm (RD) output is a safety signal which allow to detect if the fan rotates or not. Its open-drain output facilitates the connectivity with external interface for hardware monitoring. These features are combined with the Melexis patented no-VDD design to fit the IC in a small 4-pin VK or VA package.  Also available in straight leads SOT23 and bent leads SOIC8 package.

特性 Features

·Low cost
·High sensitivity Hall sensor
·Locked rotor protection and auto-restart
·Power-efficient CMOS and power MOSFETs
·Built-in output protection clamping diode
·Integrated alarm signal output
·SIP- package options:  4-pin VK or VA
·SMD package options: SOT23-5L straight leads and SOIC8 bent leads
·Drop-in replacement of US91

应用 Application

·汽车行业 - 车身、空调系统、舒适和照明
·医疗和健康行业
·工业和机器人行业
·建筑，安全，家庭和办公自动化行业
·消费行业解决方案
·家电和家用电器