Texas Instruments TPS25921XEVM-637 User Manual
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Texas Instruments TPS25921XEVM-637 User Manual

Texas Instruments TPS25921XEVM-637 User Manual

Evaluation module for tps25921x
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TPS25921X-637EVM: Evaluation Module for TPS25921X
This user's guide describes the evaluation module (EVM) for the TPS25921. The TPS25921X is an eFuse
with precision current limit, 4.5-V to 18-V supply voltage operation, programmable undervoltage,
overvoltage, overcurrent and inrush current protection features.
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TPS25921X EVM Schematic
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EVM Setup with Test Equipment
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J3= No Jumper Current Limit (1.5 A) Test Auto Retry (CH1)
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J7 = No Jumper Current Limit (1.5A) Test with Latch (CH2)
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Top Side Placement
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Top Layer
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Bottom Layer
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TPS25921X EVM Options and Settings
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Input and Output Connector Functionality
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Test Points Description
4
Jumper and LEDs Descriptions
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Power Supply Setting for PWR637
6
Default Jumper Setting for PWR637
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PWR637 DMM Readings at Different Test Points
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PWR637 Oscilloscope Setting for Current Limit Test
9
PWR637 Jumper Settings for Current Limits
10
Submit Documentation Feedback
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Copyright © 2014, Texas Instruments Incorporated
Contents
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List of Figures
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List of Tables
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TPS25921X-637EVM: Evaluation Module for TPS25921X
User's Guide
SLUUB50 - August 2014
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Summary of Contents for Texas Instruments TPS25921XEVM-637

  • Page 1: Table Of Contents

    PWR637 DMM Readings at Different Test Points ..............PWR637 Oscilloscope Setting for Current Limit Test ................PWR637 Jumper Settings for Current Limits .................. TPS25921XEVM-637 Bill of Materials SLUUB50 – August 2014 TPS25921X-637EVM: Evaluation Module for TPS25921X Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...

  • Page 2: Introduction

    White goods/appliances • Servers Blu-ray is a trademark of Blu-ray Disc Association. All other trademarks are the property of their respective owners. TPS25921X-637EVM: Evaluation Module for TPS25921X SLUUB50 – August 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...

  • Page 3: Description

    Description The TPS25921XEVM-637 enables full evaluation of the TPS25921X devices. The EVM supports two versions (Auto-Retry and Latched) of the devices on two Channels (CH1 and CH2, respectively). Input power is applied at J1 (CH1) and, J5 (CH2) while J2 and (CH1)/J6 (CH2) provide the output connection to the load.

  • Page 4: Schematics

    45.3k IOUT-2=0.4A -1.6A 1000pF 4.7µF 4.7µF TP11 TP21 TP13 95.3k 12.1k 24.9k 1000pF 0.47µF TP12 COMMON GROUND Figure 1. TPS25921X EVM Schematic TPS25921X-637EVM: Evaluation Module for TPS25921X SLUUB50 – August 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...

  • Page 5: General Configurations

    This section describes the physical access, test equipment and set up, and the test setup and procedures for this EVM. Physical Access Table 2 lists the TPS25921XEVM-637 input and output connector functionality. Table 2. Input and Output Connector Functionality Connector Label Description VIN1(+), GND(–)

  • Page 6: Test Equipment And Setup

    One resistive load or equivalent which can tolerate up to 3 ADC load at 12 V and are capable of the output short. TPS25921X-637EVM: Evaluation Module for TPS25921X SLUUB50 – August 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...

  • Page 7: Test Setup And Procedures

    Load Negative Positive Power Supply Positive PWR637 Voltmeter Negative Negative Load Power Positive Supply Positive Figure 2. EVM Setup with Test Equipment SLUUB50 – August 2014 TPS25921X-637EVM: Evaluation Module for TPS25921X Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 8 VIN1 (TP6) exceeds 17 V (M 1 V). Verify that the FLTb1 red LED (D3) turns ON. 5. Adjust the power supply voltage to 12 V. 6. Turn off the power supply. TPS25921X-637EVM: Evaluation Module for TPS25921X SLUUB50 – August 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 9 3. The level of the current pulse should match with the load current limit (based on the respective jumper setting), as shown in Table SLUUB50 – August 2014 TPS25921X-637EVM: Evaluation Module for TPS25921X Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 10 Figure 4. J7 = No Jumper Current Limit (1.5A) Test with Latch (CH2) 5. Set the input power supply to zero volts and disconnect all equipment from the DUT. TPS25921X-637EVM: Evaluation Module for TPS25921X SLUUB50 – August 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...

  • Page 11: Evm Assembly Drawings And Layout Guidelines

    EVM Assembly Drawings and Layout Guidelines PCB Drawings Figure 5 through Figure 7 show component placement and layout of the EVM. Figure 5. Top Side Placement SLUUB50 – August 2014 TPS25921X-637EVM: Evaluation Module for TPS25921X Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 12 EVM Assembly Drawings and Layout Guidelines www.ti.com Figure 6. Top Layer TPS25921X-637EVM: Evaluation Module for TPS25921X SLUUB50 – August 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 13 EVM Assembly Drawings and Layout Guidelines www.ti.com Figure 7. Bottom Layer SLUUB50 – August 2014 TPS25921X-637EVM: Evaluation Module for TPS25921X Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...

  • Page 14: Bill Of Materials (Bom)

    Bill of Materials (BOM) www.ti.com Bill of Materials (BOM) Table 10 lists the BOM for this EVM. Table 10. TPS25921XEVM-637 Bill of Materials Designator Value Description PackageReference PartNumber Manufacturer Alternate Alternate PartNumber Manufacturer Printed Circuit Board PWR637 C1, C9 0.47uF CAP, CERM, 0.47uF, 50V, +/-10%, X7R, 1206...
  • Page 15 Bill of Materials (BOM) www.ti.com Table 10. TPS25921XEVM-637 Bill of Materials (continued) Designator Value Description PackageReference PartNumber Manufacturer Alternate Alternate PartNumber Manufacturer C17, C18 1000pF CAP, CERM, 1000pF, 50V, +/-10%, X7R, 0805 0805 08055C102KAT2A FID1, FID2, FID3 Fiducial mark. There is nothing to buy or mount.
  • Page 16 ADDITIONAL TERMS AND CONDITIONS, WARNINGS, RESTRICTIONS, AND DISCLAIMERS FOR EVALUATION MODULES Texas Instruments Incorporated (TI) markets, sells, and loans all evaluation boards, kits, and/or modules (EVMs) pursuant to, and user expressly acknowledges, represents, and agrees, and takes sole responsibility and risk with respect to, the following: 1.
  • Page 17 RADIO FREQUENCY REGULATORY COMPLIANCE INFORMATION FOR EVALUATION MODULES Texas Instruments Incorporated (TI) evaluation boards, kits, and/or modules (EVMs) and/or accompanying hardware that is marketed, sold, or loaned to users may or may not be subject to radio frequency regulations in specific countries.
  • Page 18 Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2014, Texas Instruments Incorporated spacer Important Notice for Users of EVMs Considered “Radio Frequency Products”...
  • Page 19 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 20 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments TPS25921EVM-637...

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