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Texas Instruments INA228 Скачать руководство пользователя страница 26

6.2 PCB Layout

6.2.1 SENS063 (INA228EVM, INA237EVM, INA238EVM)

through

illustrate the PCB layers of the EVM.

Figure 6-5. SENS063 Top View

Figure 6-6. SENS063 Top Layer

Figure 6-7. SENS063 Bottom View

Figure 6-8. SENS063 Bottom Layer

Schematics, PCB Layout, and Bill of Materials

26

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

SBOU241C – APRIL 2020 – REVISED JULY 2021

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Copyright © 2021 Texas Instruments Incorporated

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Содержание INA228

Страница 1: ...NA229 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...

Страница 2: ...Circuitry 21 5 1 Current Sensing IC 21 5 2 Input Signal Path 21 5 3 Digital Circuitry 21 6 Schematics PCB Layout and Bill of Materials 22 6 1 Schematics 22 6 2 PCB Layout 26 6 3 Bill of Materials 28 7...

Страница 3: ...esent in the area where the TI HV EVM and its interface electronics are energized indicating operation of accessible high voltages may be present for the purpose of protecting inadvertent access d All...

Страница 4: ...with side shields or protect EVM in an adequate lucent plastic box with interlocks from accidental touch Limitation for safe use EVMs are not to be used as all or part of a production unit General Tex...

Страница 5: ...le supply of 2 7 V to 5 5 V drawing 1 1 mA current during operation and 5 A current during shutdown The output can be interfaced with a multitude of microcontrollers MCUs with a standard 4 wire SPI in...

Страница 6: ...S028 Getting Started with Digital Power Monitors SBOA511 3 Hardware The EVM is an easy to use platform for evaluating the main features and performance of the INA228 INA229 INA237 INA238 or INA239 The...

Страница 7: ...v ti com gallery info 4910879 INA228_229_237_238_239EVM_GUI 5 Connect the GND reference of the external system to the GND node of the EVM pin 1 of J1 6 Provide a differential input voltage signal to t...

Страница 8: ...ch the GUI c It is possible that the MCU has already entered Device Firmware Update DFU mode If so the GUI may notify you and try to update the firmware to the latest version d If it does not update a...

Страница 9: ...provided GUI link 3 To launch the GUI from the web browser click the GUI Composer application such as the one shown in Figure 4 4 Figure 4 4 GUI Composer Application a The GUI link will bring up all...

Страница 10: ...show in the GUI long press the reset button on the EVM to try again i If that doesn t work check different hardware COM ports under Options Serial Port as shown in Figure 4 8 Figure 4 8 Change Serial...

Страница 11: ...see GUI to EVM Connection as well as access helpful resources through the buttons on the bottom shown in Figure 4 9 Figure 4 9 Home Tab Links 4 2 2 2 Configuration Tab To do the initial setup for each...

Страница 12: ...nk then SHUNT_CAL can be adjusted manually and the tool will tell you the True Max Current that can be measured with the EVM CURRENT_LSB This is the calculated CURRENT_LSB value in Amps This field get...

Страница 13: ...tically written to the device If desired you can change the Immediate Write setting to Deferred Write to only allow writing when you are ready You can modify writable register values from any of these...

Страница 14: ...tings Below is a description of how to use the buttons and settings at the top of the results data page and next to each plot Results to collect show Use this section to select which register values t...

Страница 15: ...ntinue collecting data and only store the most recent Samples Delay between samples Sets the delay between the start of each sample set Desired delay time may not be obtainable if it is set faster tha...

Страница 16: ...for IN J1 pins 5 and 6 and IN J1 pins 3 and 4 for convenience 4 2 3 1 Detailed Setup To configure a measurement evaluation follow these steps 1 Connect a shunt resister by doing either of the followi...

Страница 17: ...ugh J1 does not exceed 10 A Failure to do so can result in damage to the EVM or personal injury Do not touch high voltage terminals The EVM may get hot 3 Connect the VBUS terminal J1 pin 2 to the desi...

Страница 18: ...gment and state idle or collecting in JSON format acknowledge setdevice 10 evm_state idle Read register format rreg ADR Where ADR is the address in hex and rreg is always lower case Register addresses...

Страница 19: ...VM 1 is on channel 1 and EVM 2 is on channel 3 the value here would be 0b00110001 I2C This is the 4 LSBs of each address chained together starting with the LSBs For example if EVM 1 is on channel 0x41...

Страница 20: ...ion setup or the signal may degrade and cause communication errors Figure 4 16 EVM to PAMB Connection The new GUI and firmware can also be used with the SENS063A and SENS064A and PAMB Controller If th...

Страница 21: ...l and power pins to the SCB Controller or other EVMs J3 connects to the EVM SCB on the right while J2 connects to more EVMs on the left R5 and R6 are used as pullup resistors for the main digital IO p...

Страница 22: ...1uF C3 DNP GND GND 1 2 3 4 5 6 J1 TP8 SDA TP9 SCL TP11 A1 TP10 A0 TP12 ALERT PD2 TP5 GND TP6 GND TP2 IN TP4 IN TP1 VBUS TP3 VS 0 1uF C2 D2 10k R7 3V3 3V3 1 F C1 4 7k R8 D1 10k R4 4 7k R5 4 7k R6 3V3...

Страница 23: ...herwise specified Variant Label Table Variant Label Text 001 INA228EVM 002 INA237EVM CE Mark LOGO PCB FCC disclaimer LOGO PCB WEEE logo Size 0 65 x 0 20 PCB Label LBL1 THT 14 423 10 LOGO5 DANGER HIGH...

Страница 24: ...4 7k R6 D1 10k R4 GND MNT_1 7 MNT_2 8 MNT_3 9 MNT_4 10 1 2 3 5 6 4 SW1 CUS 14TB 0 01 R1 DNP INA229AIDGSR CS 1 MOSI 2 ALERT 3 MISO 4 SCLK 5 VS 6 GND 7 VBUS 8 IN 9 IN 10 U1 3V3 PP0 PP1 PQ3 PQ2 PQ0 PQ1...

Страница 25: ...s 2 unless otherwise specified Variant Label Table Variant Label Text 001 INA229EVM 002 INA239EVM CE Mark LOGO PCB FCC disclaimer LOGO PCB WEEE logo Size 0 65 x 0 20 PCB Label LBL1 THT 14 423 10 DANGE...

Страница 26: ...5 SENS063 Top View Figure 6 6 SENS063 Top Layer Figure 6 7 SENS063 Bottom View Figure 6 8 SENS063 Bottom Layer Schematics PCB Layout and Bill of Materials www ti com 26 INA228 INA229 INA237 INA238 an...

Страница 27: ...View Figure 6 10 SENS064 Top Layer Figure 6 11 SENS064 Bottom View Figure 6 12 SENS064 Bottom Layer www ti com Schematics PCB Layout and Bill of Materials SBOU241C APRIL 2020 REVISED JULY 2021 Submit...

Страница 28: ...PCB1 1 Printed Circuit Board SENS063 Any C1 1 1uF CAP CERM 1 F 16 V 20 X5R 0402 0402 GRM155R61C105MA12D MuRata C2 1 0 1uF CAP CERM 0 1 uF 50 V 20 X7R 0402 0402 GRM155R71H104ME14D MuRata D1 D2 2 White...

Страница 29: ...oltage Zero Drift 16 Bit ADC SPI Bidirectional Shunt Current Bus Voltage Power and Temperature Monitor DGS0010A INA239AIDGSR Texas Instruments Table 6 7 SENS046 Variants Bill of Materials Designator Q...

Страница 30: ...pal Electronics TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 12 Test Point Miniature SMT Testpoint_Keystone_Miniatur e 5015 Keystone C3 0 0 1uF CAP CERM 0 1 uF 100 V 10 X7S AEC Q200 Grade 1 0603...

Страница 31: ...EVM 1 Updated the numbering format for tables figures and cross references throughout the document 5 Changes from Revision April 2020 to Revision A June 2020 Page Updated document to add support for t...

Страница 32: ...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 reproduction and...

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