background image

1

SBOU241A – April 2020 – Revised June 2020

Submit Documentation Feedback

Copyright © 2020, Texas Instruments Incorporated

INA228, INA229, INA237, INA238, and INA239 EVM User’s Guide

User's Guide

SBOU241A – April 2020 – Revised June 2020

INA228, INA229, INA237, INA238, and INA239 EVM User’s

Guide

This user’s guide describes the characteristics, operation, and use of the INA228, INA229, INA237,
INA238, and INA239 evaluation modules (EVMs). These EVMs are designed to evaluate the performance
of the INA228, INA229, INA237, INA238, and INA239. Throughout this document, the terms evaluation
board, evaluation module, and EVM are synonymous with the INA228EVM, INA229EVM, INA237EVM,
INA238EVM, and INA239EVM. This document includes a schematic, reference printed-circuit board (PCB)
layouts, and a complete bill of materials (BOM).

Trademarks

All trademarks are the property of their respective owners.

Summary of Contents for INA228EVM

Page 1: ...operation and use of the INA228 INA229 INA237 INA238 and INA239 evaluation modules EVMs These EVMs are designed to evaluate the performance of the INA228 INA229 INA237 INA238 and INA239 Throughout thi...

Page 2: ...the HV EVM 1 Work Area Safety a Keep work area clean and orderly b Qualified observer s must be present anytime circuits are energized c Effective barriers and signage must be present in the area whe...

Page 3: ...as Instruments Incorporated INA228 INA229 INA237 INA238 and INA239 EVM User s Guide 3 Personal Safety a Wear personal protective equipment for example latex gloves or safety glasses with side shields...

Page 4: ...INA228 INA229 INA237 INA238 and INA239 Device Summary PRODUCT DIGITAL PROTOCOL ADC RESOLUTION MAX GAIN ERROR MAX OFFSET VOLTAGE INA228 I2C 20 bit 0 1 2 V INA229 SPI 20 bit 0 1 2 V INA237 I2C 16 bit 0...

Page 5: ...Operation 4 1 Quick Start Setup The following instructions describe how to set up and use the EVM Step 1 Download and install this driver http www ti com lit zip sbac253 Step 2 Attach the EVM to the...

Page 6: ...1 as instructed in Section 4 1 Step 3 Figure 1 EVM on PAMB Controller 4 2 1 Setup 4 2 1 1 Driver Installation Download and install this driver http www ti com lit zip sbac253 This is a one time step p...

Page 7: ...ssing the RESET button Figure 2 Test Points Used to Enter DFU Mode Manually 2 With the MCU in DFU mode the firmware can now be uploaded through one of the following methods Through the GUI Plug in the...

Page 8: ...he EVM PAMB Controller unit plugged into the PC go to the previously provided GUI link 3 On the EVM make sure to set the switches to EVM mode 1 For the INA229 and INA239 Make sure that SW1 is set to C...

Page 9: ...DME md file page and search for the Hardware Connected text near the bottom left hand corner of the GUI as in Figure 5 Figure 5 Hardware Connected a If Hardware Connected does not show in the bottom l...

Page 10: ...p to the inputs by connecting the positive lead of the external voltage source to either the IN or IN terminal This action effectively raises the absolute common mode voltage of the input pins Make su...

Page 11: ...nt resistor wires connectors and so on can support the amperage and power dissipation Secondly make sure that the current flowing through J1 does not exceed 10 A Failure to do so can result in damage...

Page 12: ...be led by 0x 0 padding register addresses is also optional For example to read register address 0xB some valid commands include rreg b rreg 0B rreg 0x0B When 0x is used the x must be lower case For th...

Page 13: ...ter R2 and R3 are populated with 0 resistors by default When using input filtering take into account the input bias current of the device 5 3 Digital Circuitry This section describes the digital circu...

Page 14: ...CB Layout and Bill of Materials NOTE Board layouts are not to scale These figures are intended to show how the board is laid out The figures are not intended to be used for manufacturing EVM PCBs 6 1...

Page 15: ...and Bill of Materials 15 SBOU241A April 2020 Revised June 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated INA228 INA229 INA237 INA238 and INA239 EVM User s Guide Figu...

Page 16: ...Copyright 2020 Texas Instruments Incorporated INA228 INA229 INA237 INA238 and INA239 EVM User s Guide 6 1 2 SENS064 INA229EVM INA239EVM Figure 12 and Figure 13 show the schematic of the EVM Figure 12...

Page 17: ...and Bill of Materials 17 SBOU241A April 2020 Revised June 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated INA228 INA229 INA237 INA238 and INA239 EVM User s Guide Figu...

Page 18: ...t 2020 Texas Instruments Incorporated INA228 INA229 INA237 INA238 and INA239 EVM User s Guide 6 2 PCB Layout 6 2 1 SENS063 INA228EVM INA237EVM INA238EVM Figure 14 through Figure 17 illustrate the PCB...

Page 19: ...back Copyright 2020 Texas Instruments Incorporated INA228 INA229 INA237 INA238 and INA239 EVM User s Guide 6 2 2 SENS064 INA229EVM INA239EVM Figure 18 through Figure 21 illustrate the PCB layers of th...

Page 20: ...ials Designator QTY Value Description Package Reference Part Number Manufacturer U1 1 Automotive 85 V High Voltage Zero Drift 16 Bit ADC I2C Bidirectional Shunt Current Bus Voltage Power and Temperatu...

Page 21: ...SMT_SW_11MM3_4MM1 CUS 14TB Nidec Copal Electronics TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 11 Test Point Miniature SMT Testpoint_Keystone_ Miniature 5015 Keystone U1 1 Automotive 85 V High Volt...

Page 22: ...ption Package Reference Part Number Manufacturer PCB1 1 Printed Circuit Board SENS064 Any C1 1 1uF CAP CERM 1 F 16 V 20 X5R 0402 0402 CL05A105MO5NNNC Samsung Electro Mechanics C2 1 0 1uF CAP CERM 0 1...

Page 23: ...NA237 INA238 and INA239 EVM User s Guide Table 10 All Variants Bill of Materials continued Designator QTY Value Description Package Reference Part Number Manufacturer FID1 FID2 FID3 0 Fiducial mark Th...

Page 24: ...Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Original April 2020 to A Revision Page Updated document to add support for th...

Page 25: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

Reviews: