TMAG5124

GND

0.1

F

Vcc

ECU

VCC

GND

TEST

N

S

Distance

Wire

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. ADVANCE INFORMATION for pre-production products; subject to

change without notice.

TMAG5124

SLYS016 – JUNE 2020

TMAG5124 Hall Effect Switch With 2-Wire Interface

1

1 Features

1

•

Hall effect switch with 2-wire interface

•

Low level current output options:

–

TMAG5124A: 3.5 mA

•

Magnetic sensitivity:

–

TMAG5124A: 4 mT (typical)

•

Fast sensing bandwidth: 40 kHz

•

Supports wide voltage range

–

–

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

2 Applications

•

Industrial robotics

•

Factory automation & control

•

Fluid flow rate measurement

•

Medical devices

•

Off-board sensing

3 Description

The TMAG5124 device is a high-precision Hall effect

sensor that offers a 2-wire output interface designed

for industrial designs.

The TMAG5124 integrates a current source output

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

output

enables

robust

communication between sensor and controller, helps

detect disconnections, and limits the number of wires

to two. Data can be transmitted over longer distances

through this wire output.

The wide operating voltage range and reverse

polarity protection of the TMAG5124 is designed for a

variety of industrial applications.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TMAG5124

SOT-23 (3)

2.92 mm × 1.30 mm

(1) For all available packages, see the package option addendum

at the end of the data sheet.

Typical Schematic