SLYU056 June   2020 TMAG5123 , TMAG5123-Q1

 

  1.   TMAG5123EVM
    1.     Trademarks
    2. 1 Overview
      1. 1.1 TMAG5123EVM Kit Contents
      2. 1.2 Related Documentation From Texas Instruments
    3. 2 TMAG5123EVM Hardware
      1. 2.1 Features
    4. 3 Quick Start Setup and Use
      1. 3.1 Measurements
    5. 4 TMAG5123EVM Circuit
      1. 4.1 Micro-USB Receptacle
      2. 4.2 Test Socket
      3. 4.3 LED Control
    6. 5 TMAG5123EVM Schematic and PCB Layout
      1. 5.1 Schematic
      2. 5.2 PCB Layout
    7. 6 Bill of Materials

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 (BOP) threshold, the device output drives into low voltage state. When the magnetic flux density returns to a value below the magnetic release point (BRP), 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. Table 1 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.