Product details

Type Unipolar switch Supply voltage (Vcc) (Min) (V) 2.5 Supply voltage (Vcc) (Max) (V) 38 Operate point (Max) (mT) 5, 7, 11, 16.1 Release point (Min) (mT) 1, 3, 6.8, 11.4 Output Current Operating temperature range (C) -40 to 150
Type Unipolar switch Supply voltage (Vcc) (Min) (V) 2.5 Supply voltage (Vcc) (Max) (V) 38 Operate point (Max) (mT) 5, 7, 11, 16.1 Release point (Min) (mT) 1, 3, 6.8, 11.4 Output Current Operating temperature range (C) -40 to 150
SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 0: –40°C to 150°C ambient operating temperature range
  • Hall effect switch with 2-wire interface
  • Low-level current output options:
    • TMAG5124A/B/C/D -Q1: 3.5 mA
    • TMAG5124E/F/G/H -Q1: 6 mA
  • Magnetic sensitivity:
    • TMAG5124A/E -Q1: 4 mT (typical)
    • TMAG5124B/F -Q1: 6 mT (typical)
    • TMAG5124C/G -Q1: 10 mT (typical)
    • TMAG5124D/H -Q1: 15 mT (typical)
  • Fast sensing bandwidth: 40 kHz
  • Supports wide voltage range
    • Operating VCC range: 2.7 V to 38 V
    • No external regulator required
  • Protection features:
    • Supports load dump up to 40 V
    • Reverse polarity protection
  • SOT-23 package option
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 0: –40°C to 150°C ambient operating temperature range
  • Hall effect switch with 2-wire interface
  • Low-level current output options:
    • TMAG5124A/B/C/D -Q1: 3.5 mA
    • TMAG5124E/F/G/H -Q1: 6 mA
  • Magnetic sensitivity:
    • TMAG5124A/E -Q1: 4 mT (typical)
    • TMAG5124B/F -Q1: 6 mT (typical)
    • TMAG5124C/G -Q1: 10 mT (typical)
    • TMAG5124D/H -Q1: 15 mT (typical)
  • Fast sensing bandwidth: 40 kHz
  • Supports wide voltage range
    • Operating VCC range: 2.7 V to 38 V
    • No external regulator required
  • Protection features:
    • Supports load dump up to 40 V
    • Reverse polarity protection
  • SOT-23 package option

The TMAG5124 -Q1 device is a high-precision Hall effect sensor that offers a 2-wire interface designed for automotive designs.

The TMAG5124 -Q1 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 -Q1 is designed for a variety of automotive applications.

The TMAG5124 -Q1 device is a high-precision Hall effect sensor that offers a 2-wire interface designed for automotive designs.

The TMAG5124 -Q1 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 -Q1 is designed for a variety of automotive applications.

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Technical documentation

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Type Title Date
* Data sheet TMAG5124-Q1 Automotive 2-Wire, High-Precision, Hall-Effect Switch Sensor datasheet 05 Nov 2021
Technical article What is a Hall-effect sensor? 17 May 2021
Technical article 3 common design pitfalls when designing with Hall-effect sensors – and how to avoid them 07 Jan 2021

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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 (...)
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Evaluation board

TMAG5124EVM — TMAG5124 2-wire Hall-effect switch evaluation module

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 (...)

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Limit: 5
Package Pins Download
SOT-23 (DBZ) 3 View options

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