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) 2.7 Supply voltage (max) (V) 38 Rating Automotive Operating temperature range (°C) -40 to 150 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) 2.7 Supply voltage (max) (V) 38 Rating Automotive Operating temperature range (°C) -40 to 150 Output Current
SOT-23 (DBZ) 3 6.9204 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 V CC 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 V CC 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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* Data sheet TMAG5124-Q1 Automotive2-Wire, High-Precision, Hall-Effect Switch Sensor datasheet PDF | HTML 05 Nov 2021
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 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

Design & development

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Evaluation board

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Evaluation board

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Simulation tool

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