TMAG5123EVM

User's Guide SLYU056 – June 2020 TMAG5123EVM This user’s guide describes the characteristics, operation, and use of the TMAG5123 high-precision, inplane switch evaluation module (EVM). This EVM is designed to evaluate the performance of the TMAG5123. This document includes a schematic, printed-circuit board (PCB) layouts, and a complete bill of materials (BOM). SLYU056 – June 2020 Submit Documentation Feedback TMAG5123EVM Copyright © 2020, Texas Instruments Incorporated 1 www.ti.com 1 2 3 4 5 6 Contents Overview ...................................................................................................................... TMAG5123EVM Hardware ................................................................................................. Quick Start Setup and Use ................................................................................................. TMAG5123EVM Circuit ..................................................................................................... TMAG5123EVM Schematic and PCB Layout ............................................................................ Bill of Materials ............................................................................................................... 1 TMAG5123EVM Schematic ................................................................................................ 6 2 TMAG5123EVM Top Overlay .............................................................................................. 7 3 TMAG5123EVM Top Copper 3 3 4 5 6 8 List of Figures 4 5 .............................................................................................. TMAG5123EVM Bottom Copper .......................................................................................... TMAG5123EVM Bottom Overlay ......................................................................................... 7 7 7 List of Tables ............................................................................................................. 1 Device Variants 2 TMAG5123EVM Kit Contents .............................................................................................. 3 3 Related Documentation ..................................................................................................... 3 4 TMAG5123EVM Bill of Materials .......................................................................................... 3 8 Trademarks All trademarks are the property of their respective owners. 2 TMAG5123EVM SLYU056 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated Overview www.ti.com 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) TMAG5123A1 1 mT BOP SENSITIVITY (MAX) 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 Table 2 lists the contents of the TMAG5123EVM kit. Contact the nearest Texas Instruments Product Information Center if any component is missing. TI highly recommends checking the TMAG5123 family product folder on the TI website at www.ti.com for further information regarding this product. Table 2. TMAG5123EVM Kit Contents 1.2 ITEM QUANTITY TMAG5123EVM test board 1 Handheld magnet (D3X8) 1 USB-Micro Cable 1 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 SLYU056. 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 www.ti.com 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 2 DOCUMENT LITERATURE NUMBER TMAG5123 product data sheet SLYS030 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 BOP or BRP thresholds are crossed. SLYU056 – June 2020 Submit Documentation Feedback TMAG5123EVM Copyright © 2020, Texas Instruments Incorporated 3 TMAG5123EVM Hardware 2.1 www.ti.com Features The layout of the TMAG5123EVM printed-circuit board (PCB) is designed to provide the following features: • Burn-in test socket and precision 3D printed cradle for precise distance evaluation of in-plane sensors • Provides LED feedback to the user to quickly determine output state from the TMAG5123 • Conveniently powered from a common micro-USB connector for quick prototyping 3 Quick Start Setup and Use The following instructions are to set up and use the TMAG5123EVM: 1. Power up the EVM using either of the following methods: a. USB power: i. Insert the micro USB cable into the EVM onboard USB receptacle J1. ii. Plug the USB cable into any USB power source (for example: laptop, desktop, power bank, and so forth). b. Variable power supply i. Set the power supply voltage to desired setting between 2.5 V and 38 V. Do not turn on the power yet. ii. Connect the power supply V– terminal to the black GND test point on the EVM. iii. Connect the power supply V+ terminal to the red VCC test point on the EVM. iv. Turn on the power supply. 3.1 Measurements The TMAG5123EVM enables the user to evaluate the functionality of the TMAG5123 Hall-effect sensor using either a common USB-micro connector or external power supply, which must first be setup as described in Section 3. The following test procedures are to be used for both USB and external power options. Step 1. Trigger the TMAG5123 device output: Slide either the north or south pole of the included D3X8 magnet along the measurement channel of the TMAG5123 Hall-effect sensor. Step 2. Observe the output: If using the onboard hardware, observe the indicator light D1 illuminate when the magnet gets close to the Hall-effect sensor. Alternatively, measurement can also be made through a voltage drop using an external voltage measuring device, such as an oscilloscope or digital multimeter (DMM). 4 TMAG5123EVM SLYU056 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated TMAG5123EVM Circuit www.ti.com 4 TMAG5123EVM Circuit This section summarizes the TMAG5123EVM components. 4.1 Micro-USB Receptacle J1 is standard micro-USB receptacle. This receptacle provides 5-V power to the board if being used. 4.2 Test Socket XU1 is a 499-P36-20 Sensata test socket, which is made for devices in a SOT-23 package, such as the TMAG5123. This socket allows for quick and easy transition between variants of the TMAG5123. 4.3 LED Control R1 functions as a pullup resistor for the open-drain output of the TMAG5123. R2 is a current-limiting resistor to control the output intensity of the signal diode D1. While not normally populated, C3 is an optional SMT pad for capacitor placement, forming a first-order low pass filter with the pullup resistor. SLYU056 – June 2020 Submit Documentation Feedback TMAG5123EVM Copyright © 2020, Texas Instruments Incorporated 5 TMAG5123EVM Schematic and PCB Layout 5 www.ti.com TMAG5123EVM Schematic and PCB Layout NOTE: Board layouts are not to scale. These figures are intended to show the board layout. The figures are not intended to be used for manufacturing TMAG5123EVM PCBs. 5.1 Schematic Figure 1 shows the schematic for the TMAG5123EVM PCB. 10 8 6 VCC 2 VCC GND VBUS 1 D- 2 D+ 3 ID 4 GND 5 C1 1 VCC R1 10.0k GND C2 100nF 50V 100nF 50V VCC R2 2.00k VCC OUT XU1 GND 1 3 11 9 7 2 499-P36-20 GND C3 DNP100V 100pF GND GND GND Figure 1. TMAG5123EVM Schematic 6 TMAG5123EVM SLYU056 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated TMAG5123EVM Schematic and PCB Layout www.ti.com 5.2 PCB Layout Figure 2 through Figure 5 illustrate the PCB layout for the TMAG5123EVM. Figure 2. TMAG5123EVM Top Overlay Figure 3. TMAG5123EVM Top Copper Figure 4. TMAG5123EVM Bottom Copper Figure 5. TMAG5123EVM Bottom Overlay SLYU056 – June 2020 Submit Documentation Feedback TMAG5123EVM Copyright © 2020, Texas Instruments Incorporated 7 Bill of Materials 6 www.ti.com Bill of Materials Table 4 provides the parts list for the TMAG5123EVM. Table 4. TMAG5123EVM Bill of Materials DESIGNATOR QTY VALUE DESCRIPTION PACKAGE REFERENCE PART NUMBER MANUFACTURER C1, C2 2 D1 1 0.1uF CAP, CERM, 0.1 uF, 50 V, +/- 10%, X7R, 0603 0603 C1608X7R1H104K080AA TDK Blue LED, Blue, SMD LED_0805 150080BS75000 H9,H10,H11,H12 Wurth Elektronik 4 Bumpon, Hemisphere, 0.44 X 0.20, Clear Transparent Bumpon SJ-5303 (CLEAR) 3M J1 1 Connector, Receptacle, Micro-USB Type B, R/A, Bottom Mount SMT MICRO USB CONN, R/A 1981568-1 TE Connectivity MAG1 1 D3X8 KJMagnetics R1 1 10.0k RES, 10.0 k, 1%, 0.125 W, AEC-Q200 Grade 0, 0805 0805 CRCW080510K0FKEA Vishay-Dale R2 1 2.00k RES, 2.00 k, 1%, 0.125 W, AEC-Q200 Grade 0, 0805 0805 CRCW08052K00FKEA Vishay-Dale TP1 1 Test Point, Compact, Red, TH Red Compact Testpoint 5005 Keystone TP2 1 Test Point, Compact, Black, TH Black Compact Testpoint 5006 Keystone TP3, TP4, TP5 3 Test Point, Miniature, SMT Testpoint_Keystone_Mi niature 5015 Keystone U1 1 Precision In-Plane Digital-Switch Hall-effect Sensor, DBZ0003A DBZ0003A TMAG5123B1 Texas Instruments XU1 1 Socket, SOT23-3 Socket, 910x520x450 mil 499-P36-20 Sensata/Wells-CTI C3 0 100pF ±10% 100V Ceramic Capacitor X7R 0805 (2012 Metric) 0805 885012207110 Wurth Electronics 8 Magnet, N42, 3/16" Diameter, 1.5" Thickness TMAG5123EVM ALTERNATE PART NUMBER ALTERNATE MANUFACTURER SLYU056 – June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated IMPORTANT NOTICE AND DISCLAIMER TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. 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