Texas Instruments DRV5055-ANGLE-EVM Series, User Manual

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Overview
3 SLYU048 – July 2018
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Copyright © 2018, Texas Instruments Incorporated
DRV5055-ANGLE-EVM
1 Overview
The DRV5055 family of ratiometric, linear Hall effect sensors sense magnetic fields ranging from ±21 mT
to ±176 mT, depending on device and supply voltage. These devices operate from a single 3.3-V or 5-V
nominal power supply voltage, and draw a maximum of 10 mA of supply current. The linear output range
is between 600 mV and V
CC
– 200 mV. Table 1 summarizes the available options by input range for 3.3-V
supply voltage. The DRV5055 is currently available in a 3-pin SOT-23 or 3-pin TO-92 package.
Table 1. DRV5055 Device Summary
Product Linear Input Range (mT)
DRV5055A1 ±22
DRV5055A2 ±44
DRV5055A3 ±88
DRV5055A4 ±176
1.1 Kit Contents
Table 2 lists the contents of the DRV5055-ANGLE-EVM kit. Contact the nearest Texas Instruments
Product Information Center if any component is missing.
Table 2. Kit Contents
Item Quantity
Fully assembled PCB with magnet and plastic magnet holder 1
USB cable 1
1.2 EVM Features
The DRV5055-ANGLE-EVM includes the following features:
• Evaluation straight out of box with no additional instrumentation
• USB-powered for convenience, but includes option to connect external power source
• Silkscreen compass for angle setting
• Onboard LCD for measured angle display
• Onboard push-button switch that toggles through multiple sensor configurations and sets calibration
points
• Supports single-sensor configurations for limited-range angle sensing, and dual-sensor configurations
for full 360° sensing range
• Supports up to 36-point transfer function calibration for < 1° peak-to-peak estimation error
• PCB mounting holes