DRV5055A4EDBZRQ1傳感器變送器的磁性傳感器-線性羅盤(pán)（IC）規(guī)格書(shū)PDF中文資料

DRV5055A4EDBZRQ1屬于傳感器變送器的磁性傳感器-線性羅盤(pán)（IC）。由德州儀器制造生產(chǎn)的DRV5055A4EDBZRQ1磁性傳感器 - 線性，羅盤(pán)（IC）該系列產(chǎn)品可用于將磁場(chǎng)強(qiáng)度作為一個(gè)可變數(shù)量進(jìn)行測(cè)量，而相比之下，類(lèi)似產(chǎn)品僅檢測(cè)是否存在強(qiáng)度超過(guò)某個(gè)限值的磁場(chǎng)。常見(jiàn)的應(yīng)用包括測(cè)量地球磁場(chǎng)，以類(lèi)似于傳統(tǒng)羅盤(pán)的方式進(jìn)行定向，市面上的一些器件允許以相對(duì)于磁場(chǎng)的物理方向直接讀取測(cè)量值。

1 Features

? Ratiometric Linear Hall Effect Magnetic Sensor

? Operates From 3.3V and 5V Power Supplies

? Analog Output With VCC / 2 Quiescent Offset

? Magnetic Sensitivity Options (At VCC = 5V):

– A1: 100mV/mT, ±21mT Range

– A2/Z2: 50 mV/mT, ±42-mT Range

– A3: 25mV/mT, ±85mT Range

– A4: 12.5mV/mT, ±169mT Range

– A5: –100mV/mT, ±21mT Range

? Fast 20kHz Sensing Bandwidth

? Low-Noise Output With ±1mA Drive

? Compensation for magnet temperature drift for A

versions and none for Z versions

? AEC-Q100 Qualified for Automotive Applications:

– Temperature Grade 0: –40°C to 150°C

? Standard Industry Packages:

– Surface-Mount SOT-23

– Through-Hole TO-92

2 Applications

? Automotive Position Sensing

? Brake, Acceleration, Clutch Pedals

? Torque Sensors

? Gear Shifters

? Throttle Position

? Height Leveling

? Powertrain and Transmission Components

? Absolute Angle Encoding

? Current Sensing

3 Description

The DRV5055-Q1 is a linear Hall effect sensor that

responds proportionally to magnetic flux density. The

device can be used for accurate position sensing in a

wide range of applications.

The device operates from 3.3V or 5V power supplies.

When no magnetic field is present, the analog output

drives half of VCC. The output changes linearly

with the applied magnetic flux density, and various

sensitivity options enable maximal output voltage

swing based on the required sensing range. North

and south magnetic poles produce unique voltages.

Magnetic flux perpendicular to the top of the package

is sensed, and the two package options provide

different sensing directions.

The device uses a ratiometric architecture that can

eliminate error from VCC tolerance when the external

analog-to-digital converter (ADC) uses the same VCC

for its reference. Additionally, the device features

magnet temperature compensation to counteract how

magnets drift for linear performance across a wide –

40°C to +150°C temperature range.