Texas Instruments TPS2378EVM-602 User Manual
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Texas Instruments TPS2378EVM-602 User Manual

Texas Instruments TPS2378EVM-602 User Manual

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This user's guide describes the TPS2378 evaluation module (TPS2378EVM-602). TPS2378EVM-602
contains evaluation and reference circuitry for a forced four-pair UPOE compliant application.
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Trademarks
All trademarks are the property of their respective owners.
SLVUAG7A - May 2015 - Revised July 2017
Submit Documentation Feedback
TPS2378EVM-602 Evaluation Module
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Copyright © 2015-2017, Texas Instruments Incorporated
SLVUAG7A - May 2015 - Revised July 2017
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Summary of Contents for Texas Instruments TPS2378EVM-602

  • Page 1: Table Of Contents

    User's Guide SLVUAG7A – May 2015 – Revised July 2017 TPS2378EVM-602 Evaluation Module This user’s guide describes the TPS2378 evaluation module (TPS2378EVM-602). TPS2378EVM-602 contains evaluation and reference circuitry for a forced four-pair UPOE compliant application. Contents ........................Introduction ....................Electrical Specifications ........................

  • Page 2: Introduction

    Introduction www.ti.com Introduction The TPS2378EVM-602 allows reference circuitry evaluation of a dual TPS2378 forced four pair UPOE compliant application. It contains input and output power connectors and an array of onboard test points for circuit and evaluation. Features • Excellent efficiency, driven, synchronous flyback design.

  • Page 3: Schematic

    +BRG2 -BRG2 ~BRG1 TP16 CHGND ~BRG2 1000pF VSS2 100 ohm VSS1 100 ohm CHGND Figure 1. TPS2378EVM-602 PD Front-End Schematic SLVUAG7A – May 2015 – Revised July 2017 TPS2378EVM-602 Evaluation Module Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated...

  • Page 4: Tps2378Evm-602 Dual Pd Section

    TP19 30.1k BAT46W-7-F VSS2 100k 100k BAT46W-7-F BAT46W-7-F BSS123 BSS123 10.0k 0.01µF 0.01µF 10.0k Figure 2. TPS2378EVM-602 Dual PD section TPS2378EVM-602 Evaluation Module SLVUAG7A – May 2015 – Revised July 2017 Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated...

  • Page 5: Tps2378Evm-602 Dcdc Converter Section

    UCC2897APW 200k 0.047µF PWRGND PWRGND PWRGND TL431AIDBV 1µF 7.5k 6.81k PGND 2.00k 0.039µF PGND Figure 3. TPS2378EVM-602 DCDC Converter Section SLVUAG7A – May 2015 – Revised July 2017 TPS2378EVM-602 Evaluation Module Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated...

  • Page 6: General Configuration And Description

    VSS1 pin of PD1 TP19 VSS2 VSS2 pin of PD2 TP20 RL_INHBT Gate voltage of load delay FET TP21 SPGND Load ground TPS2378EVM-602 Evaluation Module SLVUAG7A – May 2015 – Revised July 2017 Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated...

  • Page 7: Typical Tps2378Evm-602 Test Setup

    TPS2378EVM-602 using the TPS23861EVM-612. 1. Power the TPS23861EVM-612 as described in SLUUAY8. 2. Connect J3 of the TPS2378EVM-602 to J9 or J21 of the TPS23861EVM-612 using a standard CAT5E cable. 3. Vary the load as necessary for test purposes.

  • Page 8: Tps2378Evm-602 Performance Data

    Startup Figure 5 illustrates the startup response of the TPS2378EVM-602 (Ch2-VOUT) with 26-W output load. Ch1 and Ch4 show the input current of each TPS2378 PD when the TPS23861EVM-612 is connected to the EVM. It shows Type 2 hardware classification and subsequent inrush before starting up and sharing current.

  • Page 9: Efficiency Of The Tps2378Evm-602

    (< 1 A) at startup to meet this requirement. When the output is operational, the load can be further increased to nominal 2.3A. For startup to higher loads (> 1 A) the TPS2378EVM-602 contains an optional load delay circuit (shown in Figure 3) that delays connecting the resistive load while the PSE finishes inrush.

  • Page 10: Evm Assembly Drawing And Layout Guidelines

    EVM Assembly Drawing and Layout Guidelines PCB Drawings Figure 8 Figure 13 show component placement and layout of the TPS2378EVM-602. Figure 8. Top Side Component Placement space Figure 9. Top Side Routing TPS2378EVM-602 Evaluation Module SLVUAG7A – May 2015 – Revised July 2017 Submit Documentation Feedback Copyright ©...

  • Page 11: Layer 2 Routing

    EVM Assembly Drawing and Layout Guidelines www.ti.com Figure 10. Layer 2 Routing space Figure 11. Layer 3 Routing SLVUAG7A – May 2015 – Revised July 2017 TPS2378EVM-602 Evaluation Module Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated...

  • Page 12: Bottom Side Routing

    EVM Assembly Drawing and Layout Guidelines www.ti.com Figure 12. Bottom Side Routing space Figure 13. Bottom Component Placement TPS2378EVM-602 Evaluation Module SLVUAG7A – May 2015 – Revised July 2017 Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated...
  • Page 13 Keep the high-current and high-voltage switching away from low-level sensing circuits including those outside the power supply. • Proper spacing around the high-voltage sections of the converter SLVUAG7A – May 2015 – Revised July 2017 TPS2378EVM-602 Evaluation Module Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated...
  • Page 14 Possible use of integrated RJ-45 jacks (shielded with internal transformer and Bob Smith terminations) • End-product enclosure considerations (shielding) • countless TPS2378EVM-602 Evaluation Module SLVUAG7A – May 2015 – Revised July 2017 Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated...

  • Page 15: Bill Of Materials

    Diode, Schottky, 100V, 0.15A, SOD-123 SOD-123 BAT46W-7-F Diodes Inc. H1, H2, H3, H4 Bumpon, Hemisphere, 0.375 X 0.235, Black Black Bumpon SJ61A2 SLVUAG7A – May 2015 – Revised July 2017 TPS2378EVM-602 Evaluation Module Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated...
  • Page 16 Bill of Materials www.ti.com Table 4. TPS2378EVM-602 BOM (continued) Designator Quantity Value Description Package Reference Part Number Manufacturer Terminal Block, 6A, 3.5mm Pitch, 2-Pos, TH 7.0x8.2x6.5mm ED555/2DS On-Shore Technology J2, J5, J7, J11 Header, 100mil, 2x1, Gold plated, TH Header, 2x1, 100mil...
  • Page 17 Bill of Materials www.ti.com Table 4. TPS2378EVM-602 BOM (continued) Designator Quantity Value Description Package Reference Part Number Manufacturer 7.5k RES, 7.5k ohm, 5%, 0.1W, 0603 0603 CRCW06037K50JNEA Vishay-Dale 2.00k RES, 2.00 k, 1%, 0.1 W, 0603 0603 CRCW06032K00FKEA Vishay-Dale R28, R29, R30, R31, R32, 75.0...
  • Page 18 Bill of Materials www.ti.com Table 4. TPS2378EVM-602 BOM (continued) Designator Quantity Value Description Package Reference Part Number Manufacturer 20.0k RES, 20.0k ohm, 1%, 0.1W, 0603 0603 CRCW060320K0FKEA Vishay-Dale RES, 100, 1%, 0.1 W, 0603 0603 CRCW0603100RFKEA Vishay-Dale TPS2378EVM-602 Evaluation Module SLVUAG7A –...
  • Page 19 Changes from Original (May 2015) to A Revision ......................Page ... • Changed T1 transformer in the BOM from PA4036NL (Pulse Engineering), to 750315775 (Wurth Elektronik). SLVUAG7A – May 2015 – Revised July 2017 Revision History Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated...
  • Page 20 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
  • Page 21 FCC Interference Statement for Class B EVM devices NOTE: 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.
  • Page 22 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿６丁目２４番１号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/ /www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 3.4 European Union 3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive): This is a class A product intended for use in environments other than domestic environments that are connected to a low-voltage power-supply network that supplies buildings used for domestic purposes.
  • Page 23 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2017, Texas Instruments Incorporated...
  • Page 24 IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are developing applications that incorporate TI products;...
  • Page 25 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments TPS2378EVM-602...

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