Overview
3
SLYU056 – June 2020
Copyright © 2020, Texas Instruments Incorporated
TMAG5123EVM
1
Overview
The TMAG5123 is a family of high-precision, wide input voltage, 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
convenient testing of all variants of the TMAG5123 family. Each device variant exhibits a different
magnetic sensitivity, allowing utility for distance measurement in application. When the applied magnetic
flux density exceeds the magnetic operating point (B
OP
) threshold, the device output drives into low voltage
state. When the magnetic flux density returns to a value below the magnetic release point (B
RP
), the
device output returns itself to a high voltage state. The TMAG5123EVM comes prepopulated with a
TMAG5123B1 variant for out of the box evaluation. Additional variants can be sampled from www.ti.com.
lists the different device variants available.
Table 1. Device Variants
DEVICE
BOP SENSITIVITY (MIN)
BOP SENSITIVITY (MAX)
TMAG5123A1
1 mT
3 mT
TMAG5123B1
2.5 mT
4.5 mT
TMAG5123C1
6 mT
8 mT
TMAG5123D1
9 mT
11 mT
The device operates from a VCC range of 2.5 V to 38 V, and is available in a standard SOT-23 package.
1.1
TMAG5123EVM Kit Contents
lists the contents of the TMAG5123EVM kit. Contact the nearest
if any component is missing. TI highly recommends checking the TMAG5123 family
product folder on the TI website at
for further information regarding this product.
Table 2. TMAG5123EVM Kit Contents
ITEM
QUANTITY
TMAG5123EVM test board
1
Handheld magnet (D3X8)
1
USB-Micro Cable
1
1.2
Related Documentation From Texas Instruments
The following document provides information regarding TI's integrated circuits used in the assembly of the
TMAG5123EVM. This user's guide is available from the TI website under literature number
. Any
letter appended to the literature number corresponds to the document revision that is current at the time of
the writing of this document. Newer revisions are available from
or the Texas Instruments'
Literature Response Center at (800) 477-8924 or the Product Information Center at (972) 644-5580. When
ordering, identify the document by both title and literature number.
Table 3. Related Documentation
DOCUMENT
LITERATURE NUMBER
product data sheet
SLYS030
2
TMAG5123EVM Hardware
The TMAG5123EVM is a simple-to-use platform for evaluating the main features and performance of the
TMAG5123 across a wide voltage range. The EVM provides quick visual feedback to the user in the form
of LED indication when the device under test's B
OP
or B
RP
thresholds are crossed.
