DRV5055 High accuracy 3.3 V or 5 V ratiometric bipolar Hall effect sensor family | TI.com

DRV5055
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High accuracy 3.3 V or 5 V ratiometric bipolar Hall effect sensor family

High accuracy 3.3 V or 5 V ratiometric bipolar Hall effect sensor family - DRV5055
Datasheet
 

Description

The DRV5055 device 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 3.3-V or 5-V 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 four 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 125°C temperature range.

Features

  • Ratiometric Linear Hall Effect Magnetic Sensor
  • Operates From 3.3-V and 5-V Power Supplies
  • Analog Output With VCC / 2 Quiescent Offset
  • Magnetic Sensitivity Options (At VCC = 5 V):
    • A1: 100 mV/mT, ±21-mT Range
    • A2: 50 mV/mT, ±42-mT Range
    • A3: 25 mV/mT, ±85-mT Range
    • A4: 12.5 mV/mT, ±169-mT Range
  • Fast 20-kHz Sensing Bandwidth
  • Low-Noise Output With ±1-mA Drive
  • Compensation For Magnet Temperature Drift
  • Standard Industry Packages:
    • Surface-Mount SOT-23
    • Through-Hole TO-92

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Hall Effect Magnetic Field Calculator

Gauss
Rectangle Cylinder
rec

Calculated magnetic field B = 26.05 mT

Parametrics

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Part number Order Type Supply voltage (Vcc) (Min) (V) Supply voltage (Vcc) (Max) (V) Output Accuracy (%) Rating Sensitivity (Typ) (mV/mT) Operating temperature range (C)
DRV5055 Order now Ratiometric Bipolar     3     5.5     0.2 V to Vcc     5     Catalog     12.5
25
50
100    
-40 to 125    
DRV5053 Order now Bipolar     2.5     38     0.2 V to 1.8 V     70     Catalog     -11
-23
-45
-90
+23
+45    
-40 to 125    
DRV5056 Order now Ratiometric Unipolar     3     5.5     0.6 V to Vcc     5     Catalog     25
50
100
200    
-40 to 125    
DRV5057 Order now Ratiometric PWM Output     3     5.5     8 %D to 92 %D     6     Catalog       -40 to 125