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TMAG5124

ACTIVE

Two-wire (current output), high-voltage (up to 38 V), high-precision switch for remote sensing

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Data sheet

TMAG5124

ACTIVE
Data sheet Order now

Product details

Type Unipolar switch Operate point (typ) (mT) 4, 6, 10, 15 Operate point (max) (mT) 5, 7, 11, 16.1 Release point (min) (mT) 1, 3, 6.8, 11.4 Supply current (µA) 3500, 6000 Bandwidth (kHz) 40 Supply voltage (min) (V) 2.5 Supply voltage (max) (V) 38 Rating Catalog Operating temperature range (°C) -40 to 125 Output Current
Type Unipolar switch Operate point (typ) (mT) 4, 6, 10, 15 Operate point (max) (mT) 5, 7, 11, 16.1 Release point (min) (mT) 1, 3, 6.8, 11.4 Supply current (µA) 3500, 6000 Bandwidth (kHz) 40 Supply voltage (min) (V) 2.5 Supply voltage (max) (V) 38 Rating Catalog Operating temperature range (°C) -40 to 125 Output Current
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37
  • 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 V CC 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
  • 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 V CC 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

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.

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.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TMAG5124 2-Wire, High-Precision, Hall-Effect Switch Sensor datasheet (Rev. A) PDF | HTML 08 Oct 2020
Application brief How Hall-Effect Sensors are Used in Electronic Smart Locks (Rev. B) PDF | HTML 22 Jul 2025
Application note Position Sensing in Electronic Smart Locks Using Hall-Effect Sensors (Rev. B) PDF | HTML 22 Jul 2025
Product overview Introduction to Hall-Effect Sensors (Rev. B) PDF | HTML 25 Apr 2024
Application brief Introduction to TI Magnetic Sense Simulator Features PDF | HTML 05 Dec 2023
User guide Texas Instruments' Magnetic Sense Simulator User's Guide PDF | HTML 04 Dec 2023
Application brief Innovative Sensing Solutions for Home Appliances (Rev. A) PDF | HTML 11 Apr 2023
Application brief Transition Detection Using Hall-Effect Sensors (Rev. A) PDF | HTML 09 Jun 2022
Technical article 5 common Hall-effect sensor myths PDF | HTML 26 Apr 2022
Application note HMI Rocker Switch With Hall-Effect Switches PDF | HTML 21 Jan 2022
Application brief Multi-State Position Selection Using Hall-Effect Sensors PDF | HTML 13 Jan 2022
Application brief Two-State Selector Using Hall-Effect Sensors PDF | HTML 01 Dec 2021

Design & development

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