Texas Instruments TMAG5124 Hall-Effect Switch Sensor
Texas Instruments TMAG5124 Hall-Effect Switch Sensor is a high-precision Hall effect sensor with a 2-wire interface designed for industrial designs. The TMAG5124 integrates a current source that switches between two levels depending on the value of the magnetic field applied to the part. While the high value is fixed, the low value can be selected from two ranges. This type of interface enables robust communication between sensor and controller, allows long-distance transmissions, helps detect disconnections, and limits the number of wires to two.
The Texas Instrument TMAG5124 is available in a 3-pin SOT-23 package. While three pins are available in the package, the device only requires the VCC and GND pins to operate. The current can be measured from either of those pins, creating a high- or low-side configuration. Different product variants enable the selection of different levels of magnetic sensitivity to match application-specific requirements. The TMAG5124's wide operating voltage range and reverse polarity protection are designed for a variety of industrial applications.
Features
- Hall effect switch with 2-wire interface
- Low-level current output options
- TMAG5124A/B/C/D (3.5mA)
- TMAG5124E/F/G/H (6mA)
- Magnetic sensitivity
- TMAG5124A/E (4mT (typical))
- TMAG5124B/F (6mT (typical))
- TMAG5124C/G (10mT (typical))
- TMAG5124D/H (15mT (typical))
- 40kHz fast-sensing bandwidth
- Supports wide voltage range
- 2.5V to 38V operating VCC range
- No external regulator is required
- Wide operating temperature range
- –40°C to +125°C ambient operating temperature range
- Protection features
- Supports load dump up to 40V
- Reverse polarity protection
- SOT-23 package option
Applications
- Industrial robotics
- Factory automation and control
- Fluid flow rate measurement
- Medical devices
- Off-board sensing
Additional Resources
Functional Block Diagram
Related Development Tools
Texas Instruments TMAG5124EVM Hall Effect Switch Evaluation Module
Evaluates the TMAG5124, a two-wire (current output), high-voltage, high-precision switch.
Texas Instruments HALL-ADAPTER-EVM Hall Sensor Evaluation Module
Speeds up your switch, latch and linear hall sensor prototyping and testing.