A31010中文资料Small Low Power Unidirectional Linear Hall-Effect with Sleep Mode数据手册Allegro规格书

描述 Description

The A31010 family of unipolar linear Hall-effect sensor ICs is an ideal part for battery powered head-on (i.e. pushbutton) and slide-by (i.e. slider) motion detection present in game controller triggers, keyboards, security systems, liquid level, and other consumer applications. 

The unipolar operation outputs a voltage proportional to the applied positive magnetic field ensuring maximum resolution while the external Vref pin provides flexibility for the output reference enabling operation in a ratiometric or non-ratiometric mode.

The fast wakeup and sleep time allows the A31010 to transition quickly between sleep and awake modes and the user-controlled sleep pin enables flexible duty cycles to optimize power consumption. These features, coupled with a low supply voltage rating down to 2.5 V, make this IC ideal for battery-powered applications while enabling easy integration to 3.3 V microcontrollers.

These devices are available in a small, lead free, 2 mm × 3 mm, 0.75 mm height DFN-6 package to minimize PCB board area.

特性 Features

• User-controlled sleep mode with fast (< 60 µs) wakeup time for lag-free power savings
• 3.2 mA active and 25 µA sleep current reduces total power consumption and extends battery life
• Operates down to 2.5 V supply for battery applications
• Low quiescent voltage output maximizes output range and resolution
• Small size DFN-6 (2 mm x 3 mm x 0.75 mm) for minimal board area

简介

A31010属于传感器变送器的磁性传感器-线性罗盘（IC）。由制造生产的A31010磁性传感器 - 线性，罗盘（IC）该系列产品可用于将磁场强度作为一个可变数量进行测量，而相比之下，类似产品仅检测是否存在强度超过某个限值的磁场。常见的应用包括测量地球磁场，以类似于传统罗盘的方式进行定向，市面上的一些器件允许以相对于磁场的物理方向直接读取测量值。