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TPS65381EVM User's Guide
User's Guide
Literature Number: SLVU847
April 2013

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Summary of Contents for Texas Instruments TPS65381EVM

  • Page 1 TPS65381EVM User's Guide User's Guide Literature Number: SLVU847 April 2013...
  • Page 2: Table Of Contents

    Go into ACTIVE Mode - Step by Step Description ......................... EVM Schematic ........................Board Picture ................................................Bottom ........................ Board Assembly ........................Board Layout ........................Bill of Material Contents SLVU847 – April 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 3 List of Tables ..................1-1. Device and Package Configurations ......................3-1. EVM Connectors ....................... 3-2. EVM Voltages ......................... 3-3. EVM Jumper ......................3-4. EVM Test Points SLVU847 – April 2013 List of Figures Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 4: Introduction

    Chapter 1 SLVU847 – April 2013 Introduction The Texas Instruments TPS65381EVM evaluation module (EVM) helps engineers evaluate the operation and performance of the TPS65381-Q1 power supply IC for safety applications. The device offers configurability through a serial peripheral interface (SPI).
  • Page 5: Background

    The TPS65381-Q1 device is a multi-rail power supply designed to supply MCUs in safety-critical applications, such as those found in automotive. The devices supports Texas Instruments TMS570LS series 16 or 32-Bit RISC Flash MCU and other MCUs with dual-core lockstep (LS) or loosely coupled (LC) architectures.
  • Page 6: Setup

    VDD1 ENDRV VDD3/5 CANWU VDD3/5 ERROR DIAG_OUT DIAGOUT VDD5 Open VDD5 Open VDDIO VDD1 Open Open VDD1 Open SCLK Open VBATP Open VDDIO Open VSIN Open Setup SLVU847 – April 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 7: Supply

    For start-up without using the TIGER board or external IGN signal, IGN (pin 4 of CON2) can be connected to VBATP (pin 6 of CON2) by setting a jumper to start up the device. SLVU847 – April 2013 Setup Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 8: Test Points

    3.3 V is selected. If the pin is shorted to GND, 5 V is selected. The output capacitor C6 is needed to stabilize the output voltage. The output voltage VDD3/5 is available at CON1, pin 9, and CON2, pins 12 and 14. Setup SLVU847 – April 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 9: Vdd5 Voltage Regulator

    Additionally, the voltage dividers R1_4 and R1_5 can be used to define the output voltage. The capacitor C4 is needed for stable operation. The output voltage VSOUT1 is available at CON2, pin 30. SLVU847 – April 2013 Setup Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 10: Tiger Gui Software

    After first starting the software, the installation of a .net environment might be needed. It can be downloaded at microsoft.com. The software provides the user a GUI for easy set-up and control of the TPS65381-Q1 device. TIGER GUI Software SLVU847 – April 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 11: Go Into Active Mode - Step By Step Description

    6. Set AutoSet DIAG EXIT MASK. Figure 5-2. Start-Up Screen 7. After setting the DIAG EXIT MASK, press the IGN button. SLVU847 – April 2013 Go into ACTIVE Mode - Step by Step Description Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 12: After Ign Start, Device Has Started, I

    8. Press the Clr button below ERR Fail and WD Fail. Figure 5-4. Clear ERR Fail and WD Fail 9. Reset DIAG EXIT MASK. Go into ACTIVE Mode - Step by Step Description SLVU847 – April 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 13: Clear Diag Exit Mask = Device Is In Active Mode

    Now the device is in active mode and the ENDRV signal enables the power stages in a real safety application. For details regarding the flags and register setting, please refer to the data sheet (SLVSBC4). SLVU847 – April 2013 Go into ACTIVE Mode - Step by Step Description Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 14: Evm Schematic

    Chapter 6 SLVU847 – April 2013 EVM Schematic Figure 6-1. TPS65381EVM Schematic EVM Schematic SLVU847 – April 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 15: Board Picture

    Chapter 7 SLVU847 – April 2013 Board Picture Figure 7-1. EVM Top View SLVU847 – April 2013 Board Picture Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 16: Bottom

    Bottom www.ti.com Bottom Figure 7-2. EVM Bottom View Board Picture SLVU847 – April 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 17: Board Assembly

    PCB for optimal performance. The PCB provides 2 oz. copper planes on the top and bottom to dissipate heat. Figure 8-1. Top Assembly Layer SLVU847 – April 2013 Board Assembly Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 18: Bottom Assembly Layer

    Figure 8-2. Bottom Assembly Layer Board Assembly SLVU847 – April 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 19: Board Layout

    SLVU847 – April 2013 Board Layout Figure 9-1 through Figure 9-4 show the board layout. Figure 9-1. Top Layer Routing Figure 9-2. Layer 2 (AGND) Routing SLVU847 – April 2013 Board Layout Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 20: Layer 3 Routing

    Figure 9-3. Layer 3 Routing Figure 9-4. Layer 4 Routing Board Layout SLVU847 – April 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 21: Bill Of Material

    IC, SMT, HTSSOP- DUT, SMT, HTSSOP, 32DAP, 0.65 mmLS, 11.1 x 8.3 x 1.2 mm, THERMAL PAD COILCRAFT MSS1246T-333ML INDUCTOR, SMT, INDUCTOR, SMT, 33 µH, 20%, 3.6 A, SHIELD SLVU847 – April 2013 Bill of Material Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 22 THU, MINIATURE, 0.1LS, TP8, TP9, TP18 120TL, WHITE FISCHER CAB 4 G S J1, J2, J3, J4, J5, 2.54 mm JUMPER 2.54 mm JUMPER Bill of Material SLVU847 – April 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 23 Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization.
  • Page 24 FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
  • Page 25 Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan. Texas Instruments Japan Limited (address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan http://www.tij.co.jp...
  • Page 26 FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2012, Texas Instruments Incorporated...
  • Page 27 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
  • Page 28 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments TPS65381EVM...

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