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TMAG5123
  • TMAG5123
  • TMAG5123

TMAG5123

ACTIVE

High-voltage (up to 38 V), in-plane, high-precision switch

Texas Instruments TMAG5123 Product Info

1 April 2026 1

Parameters

Type

Omnipolar switch

Supply current (µA)

3500

Bandwidth (kHz)

10

Supply voltage (min) (V)

2.7

Supply voltage (max) (V)

38

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Output

Open drain

Package

SOT-23 (DBZ)-3-6.9204 mm² 2.92 x 2.37

Features

  • In-plane, omnipolar Hall-effect switch
  • High magnetic sensitivity:
    • TMAG5123B: 4.1 mT (typical)
    • TMAG5123C: 7.5 mT (typical)
    • TMAG5123D: 10.9 mT (typical)
  • Supports a wide voltage range
    • 2.5-V to 38-V operating VCC range
    • No external regulator required
  • Wide operating temperature range
    • Ambient operating temperature range: –40 °C to +125 °C
  • 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
  • In-plane, omnipolar Hall-effect switch
  • High magnetic sensitivity:
    • TMAG5123B: 4.1 mT (typical)
    • TMAG5123C: 7.5 mT (typical)
    • TMAG5123D: 10.9 mT (typical)
  • Supports a wide voltage range
    • 2.5-V to 38-V operating VCC range
    • No external regulator required
  • Wide operating temperature range
    • Ambient operating temperature range: –40 °C to +125 °C
  • 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

Description

The TMAG5123 is a chopper-stabilized omnipolar, active-low, in-plane, Hall-effect switch sensor. The TMAG5123 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 incorporates a wide 2.5-V to 38-V operating voltage range and reverse polarity protection of up to -20-V, enabling robust operation for industrial appliations.

The TMAG5123 is a chopper-stabilized omnipolar, active-low, in-plane, Hall-effect switch sensor. The TMAG5123 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 incorporates a wide 2.5-V to 38-V operating voltage range and reverse polarity protection of up to -20-V, enabling robust operation for industrial appliations.

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