Code example or demo
Data sheet
DRV5056
- Unipolar linear hall effect magnetic sensor
- Operates from 3.3V and 5V power supplies
- Analog output with 0.6V quiescent offset:
- Maximizes voltage swing for high accuracy
- Magnetic sensitivity options (at VCC = 5V):
- A1/Z1: 200mV/mT, 20mT range
- A2/Z2: 100mV/mT, 39mT range
- A3/Z3: 50mV/mT, 79mT range
- A4/Z4: 25mV/mT, 158mT range
- A6: 100mV/mT, 39mT range
- A8: 66.6mV/mT, 64mT range
- Fast 20kHz sensing bandwidth
- Low-noise output with ±1mA drive
- Compensation for magnet temperature drift for A1/A2/A3/A4/A6/A8 versions and None for the Z1/Z2/Z3/Z4 versions
- Standard industry packages:
- Surface-mount SOT-23
- Through-hole TO-92
The DRV5056 is a linear Hall-effect sensor that responds proportionally to flux density of a magnetic south pole. The device can be used for accurate position sensing in a wide range of applications.
Featuring a unipolar magnetic response, the analog output drives 0.6V when no magnetic field is present, and increases when a south magnetic pole is applied. This response maximizes the output dynamic range in applications that sense one magnetic pole. Multiple sensitivity options further maximize the output swing based on the required sensing range.
The device operates from 3.3V or 5V power supplies. 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 minimize error from VCC tolerance when the external analog-to-digital converter (ADC) uses the same VCC for the 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. Device options for no temperature compensation of magnet drift are also available.
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Technical documentation
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Evaluation board
DRV5055-5057EVM — DRV5055, DRV5056 and DRV5057 linear Hall effect sensor evaluation module
TheDRV505x is a linear Hall Effect magnetic-sense solution that provides ease of use and high performance. The DRV5055-5057EVM is intended to provide basic functional evaluation of this device family. The fixture layout is not intended to be a model for the target circuit, nor is it laid out for (...)
User guide: PDF
Evaluation board
HALL-ADAPTER-EVM — Hall sensor breakout adapter evaluation module
Speed up your switch, latch and linear Hall sensor prototyping and testing with the HALL-ADAPTER-EVM, which provides a fast, easy and inexpensive way to interface with small ICs. You can connect any supported Hall sensor using the included Samtec terminal strips or wire them directly to existing (...)
Evaluation board
HALL-TRIGGER-EVM — Evaluation module for contactless, Hall-effect variable-speed trigger with external field protection
This evaluation module (EVM) uses Hall-effect sensors to implement a trigger that outputs a varying voltage based on how far the trigger is pressed. The EVM uses a contactless approach that reduces wear and tear compared to traditional mechanical-based triggers, thereby improving product lifetime. (...)
Software programming tool
SLIC027 — DRV5055-ANGLE-EVM MSP Flasher Batch File
Supported products & hardware
Calculation tool
HALL-PROXIMITY-DESIGN — Magnetic Sensing Proximity Tool
HALL-PROXIMITY-DESIGN is a software tool that facilitates rapid iterative design for magnet and Hall-effect sensor systems.
Supported products & hardware
Calculation tool
SBAC231 — DRV5056 Distance Measurement Tool
Supported products & hardware
Simulation tool
TI-MAGNETIC-SENSE-SIMULATOR — TI Magnetic sensing simulation tool
The TI-MAGNETIC-SENSE-SIMULATOR (TIMSS) webtool estimates magnetic flux density and TI magnetic sensor outputs for magnetic position sensing systems. Select from our portfolio of magnetic sensors to thoroughly emulate electro-mechanical performance of your design. The tool supports various magnet (...)
Supported products & hardware
Reference designs
TIDA-060032 — Contactless, Hall-effect variable-speed trigger reference design with external field protection
This reference design uses Hall-effect sensors to implement a trigger that outputs varying voltage based on how far the trigger is pressed. These types of triggers are useful in cordless power tools or any other end equipment that uses trigger displacement information.
The design uses a contactless (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBZ) | 3 | Ultra Librarian |
| TO-92 (LPG) | 3 | Ultra Librarian |
Ordering & quality
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