Two-wire (current output), high-voltage (up to 38V), high-precision switch
Product details
Parameters
Package | Pins | Size
Features
- Hall effect switch with 2-wire interface
- Low-level current output options:
- TMAG5124A/B/C/D: 3.5 mA
- TMAG5124E/F/G/H: 6 mA
- Magnetic sensitivity:
- TMAG5124A/E: 4 mT (typical)
- TMAG5124B/F: 6 mT (typical)
- TMAG5124C/G: 10 mT (typical)
- TMAG5124D/H: 15 mT (typical)
- Fast sensing bandwidth: 40 kHz
- Supports wide voltage range
- Operating VCC range: 2.5 V to 38 V
- No external regulator required
- Wide operating temperature range
- Ambient operating temperature range: –40 °C to +125 °C
- Protection features:
- Supports load dump up to 40 V
- Reverse polarity protection
- SOT-23 package option
Description
The TMAG5124 device is a high-precision Hall effect sensor that offers 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, allow long distance transmissions, helps detect disconnections, and limits the number of wires to two.
The device is available in a 3-pin SOT-23 package. While 3 pins are available on the package, the device only requires the VCC and GND pin to operate. The current can be measured from either of those 2 pins, creating either a high-side or low-side configuration.
Different product variants enable selection of different levels of magnetic sensitivity to match application specific requirements.
The wide operating voltage range and reverse polarity protection of the TMAG5124 is designed for a variety of industrial applications.
Same functionality with different pin-out to the compared device.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Data sheet | TMAG5124 2-Wire, High-Precision, Hall-Effect Switch Sensor datasheet (Rev. A) | Oct. 08, 2020 |
| Application note | Transition Detection Using Hall-Effect Sensors | Jun. 23, 2021 | |
| Technical article | What is a Hall-effect sensor? | May 17, 2021 | |
| Technical article | 3 common design pitfalls when designing with Hall-effect sensors – and how to avoid them | Jan. 07, 2021 | |
| User guide | TMAG5124EVM User's Guide (Rev. A) | Nov. 12, 2020 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Evaluation of most Hall sensor devices from TI, including SOT-23, TO-92, X2SON, and more.
- Standard breakout footprint for easy breadboard prototyping.
- Magnet included.
Description
The TMAG5124EVM is the evaluation module (EVM) for the TMAG5124, a 2-wire Hall effect sensor that utilizes a closed current loop as the signal of interest. The EVM is intended to facilitate rapid, convenient use of the device family and consists of a single printed-circuit board (PCB) that can be (...)
Features
- Evaluation of the TMAG5124 across all sensitivities
- Visual feedback board included for out of the box prototyping
- Separable coupon boards for quick prototyping
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SOT-23 (DBZ) | 3 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
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- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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