Product details

Type Omnipolar switch Supply voltage (Vcc) (Min) (V) 2.7 Supply voltage (Vcc) (Max) (V) 38 Operate point (Max) (mT) 6, 9.5, 13 Release point (Min) (mT) 0.3, 3.5, 6.7 Output Open drain Operating temperature range (C) -40 to 150
Type Omnipolar switch Supply voltage (Vcc) (Min) (V) 2.7 Supply voltage (Vcc) (Max) (V) 38 Operate point (Max) (mT) 6, 9.5, 13 Release point (Min) (mT) 0.3, 3.5, 6.7 Output Open drain Operating temperature range (C) -40 to 150
SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 0: –40°C To +150°C, TA
  • In-plane, omnipolar Hall-effect switch
  • High magnetic sensitivity:
    • TMAG5123B -Q1: 4.1 mT (typical)
    • TMAG5123C -Q1: 7.5 mT (typical)
    • TMAG5123D -Q1: 10.9 mT (typical)
  • Supports a wide voltage range
    • 2.7-V to 38-V operating VCC range
    • No external regulator required
  • 30kHz continuous conversion
  • Open-drain output
  • SOT-23 package option
  • Protection features
    • Supports up to 40-V load dump
    • Reverse battery protection to –20-V
    • Output short-circuit protection
    • Output current limitation
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 0: –40°C To +150°C, TA
  • In-plane, omnipolar Hall-effect switch
  • High magnetic sensitivity:
    • TMAG5123B -Q1: 4.1 mT (typical)
    • TMAG5123C -Q1: 7.5 mT (typical)
    • TMAG5123D -Q1: 10.9 mT (typical)
  • Supports a wide voltage range
    • 2.7-V to 38-V operating VCC range
    • No external regulator required
  • 30kHz continuous conversion
  • Open-drain output
  • SOT-23 package option
  • Protection features
    • Supports up to 40-V load dump
    • Reverse battery protection to –20-V
    • Output short-circuit protection
    • Output current limitation

The TMAG5123-Q1 is a chopper-stabilized omnipolar, active-low, in-plane, Hall-effect switch sensor. The TMAG5123-Q1 eases mechanical placement of the sensor by measuring magnetic fields parallel to the surface of the printed circuit board (PCB) in a surface mount SOT-23 package.

Different sensitivity levels are available to match the specific requirement of the application. When the applied magnetic flux density value exceeds the operating point (BOP) threshold in absolute magnetic field values, the open-drain output produces a low-state voltage. The output remains low until the applied field decreases to less than the release point (BRP) threshold also in absolute terms.

The TMAG5123-Q1 incorporates a wide 2.7-V to 38-V operating voltage range and reverse polarity protection of up to -20-V, enabling robust operation for industrial and automotive applications.

The TMAG5123-Q1 is a chopper-stabilized omnipolar, active-low, in-plane, Hall-effect switch sensor. The TMAG5123-Q1 eases mechanical placement of the sensor by measuring magnetic fields parallel to the surface of the printed circuit board (PCB) in a surface mount SOT-23 package.

Different sensitivity levels are available to match the specific requirement of the application. When the applied magnetic flux density value exceeds the operating point (BOP) threshold in absolute magnetic field values, the open-drain output produces a low-state voltage. The output remains low until the applied field decreases to less than the release point (BRP) threshold also in absolute terms.

The TMAG5123-Q1 incorporates a wide 2.7-V to 38-V operating voltage range and reverse polarity protection of up to -20-V, enabling robust operation for industrial and automotive applications.

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Technical documentation

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Type Title Date
* Data sheet TMAG5123-Q1 Automotive In-Plane, High-Precision, High-Voltage, Hall-Effect Switch datasheet (Rev. A) 25 Aug 2021
Application note HMI Rocker Switch With Hall-Effect Switches 21 Jan 2022
Application note Multi-State Position Selection Using Hall-Effect Sensors 13 Jan 2022
Application note Sensing Magnetic Fields In-Plane Versus Out-of-Plane (Rev. B) 09 Aug 2021
Application note Transition Detection Using Hall-Effect Sensors 23 Jun 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
User guide TMAG5123EVM User's Guide 18 Jun 2020

Design & development

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Evaluation board

TMAG5123EVM — TMAG5123 in-plane high-precision Hall effect switch evaluation module

The TMAG5123 is a family of high-precision, wide Vin, in-plane Hall effect sensors designed for system challenges where higher magnetic precision is needed for more flexibility in design. The TMAG5123 evaluation module is populated with a Sensata 499-P36-20 test socket, which allows for precision (...)

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Calculation tool

Magnetic Sensing Proximity Tool (Rev. B)

SLYR071B.ZIP (2068 KB)
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SOT-23 (DBZ) 3 View options

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