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SLUUBJ1A – February 2017 – Revised June 2017

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TPS2373-4EVM-758 Evaluation Module

User's Guide

SLUUBJ1A – February 2017 – Revised June 2017

TPS2373-4EVM-758 Evaluation Module

This user’s guide describes the TPS2373-4 evaluation module (TPS2373-4EVM-758). The TPS2373-
4EVM-758 contains evaluation and reference circuitry for the TPS2373-4. The TPS2373-4 device is an
IEEE 802.3bt-compliant, powered-device (PD) controller optimized for isolated converter topologies. The
TPS2373-4EVM-758 is designed for high-efficiency, 70-W, PD solutions.

Contents

1

Introduction

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2

2

Electrical Specifications

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2

3

Description

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3

4

Schematic

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4

5

General Configuration and Description

...................................................................................

6

6

TPS237xEVM-758 Performance Data

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8

7

EVM Assembly Drawings and Layout Guidelines

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9

8

Bill of Material

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14

List of Figures

1

TPS2373-4EVM-758 PD Front-End Schematic

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4

2

TPS2373-4EVM-758 PD and DC/DC Converter Schematic

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5

3

Startup Response to Full Load (14 A) for a 48-V Input

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8

4

Transient Response from 7 A to 14 A for a 48-V Input

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8

5

Efficiency of the TPS2373-4EVM-758, V

IN

= 48 V

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9

6

Top Side Component Placement

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9

7

Top Side Routing

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10

8

Layer 2 Routing

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10

9

Layer 3 Routing

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11

10

Bottom Side Routing

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11

11

Bottom Component Placement

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12

List of Tables

1

TPS2373-4EVM-758 Electrical and Performance Specifications at 25°C

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2

2

Connector Functionality

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6

3

Test Points

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6

4

Jumper Descriptions

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7

5

TPS237xEVM-758 BOM

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14

Trademarks

All trademarks are the property of their respective owners.

Содержание TPS2373-4EVM-758

Страница 1: ...Description 3 4 Schematic 4 5 General Configuration and Description 6 6 TPS237xEVM 758 Performance Data 8 7 EVM Assembly Drawings and Layout Guidelines 9 8 Bill of Material 14 List of Figures 1 TPS237...

Страница 2: ...pplications 2 Electrical Specifications Table 1 lists the EVM electrical specifications Table 1 TPS2373 4EVM 758 Electrical and Performance Specifications at 25 C Parameter Test Conditions Min Typ Max...

Страница 3: ...hown in Figure 1 R30 provides the detection signature while J7 and J10 allow user selection of the classification signature and desired power level To the right of U1 is the switched side of the PD co...

Страница 4: ...2V D25 8 2V D26 3 1 2 Q2 3 1 2 Q3 3 1 2 Q4 3 1 2 Q5 3 1 2 Q7 3 1 2 Q8 3 1 2 Q9 3 1 2 Q10 D18 100V 3 1 2 Q6 499k R13 301k R14 PR12 PR36 PR45 PR78 PR12 PR36 PR45 PR78 BR BR BR 1000pF 100V C14 1000pF 100...

Страница 5: ...8 1 2 3 5 6 Q15 0 033 F C34 30V 7 8 1 2 3 5 6 Q13 0 075 R47 2 1 3 U4 TLV431AIDBZR VOUT GND 665 R57 1 F C60 3 3 H L5 100 F C36 470 F C37 0 047 F C47 GND D34 0 88V 5V 14A VCOUT 1 18k R52 60 4k R48 12 1...

Страница 6: ...P3 PAIR 45 Data pair from Pins 4 and 5 of J1 TP4 PAIR 78 Data pair from Pins 7 and 8 of J1 TP5 EARTH Connect to earth ground when available TP7 MPS_DUTY MPS_DUTY pin of the TPS2373 4 TP9 TP10 VDD Inpu...

Страница 7: ...tion Module Table 4 Jumper Descriptions Jumper Description J4 Jump to power TPH TPL BT through the bias winding Or open to power through external circuit J5 Automatic MPS duty cycle selection J6 Jump...

Страница 8: ...TPS2373 4EVM 758 Evaluation Module 6 TPS237xEVM 758 Performance Data 6 1 Startup Figure 3 illustrates the startup response of the TPS2373 4EVM 758 Figure 3 Startup Response to Full Load 14 A for a 48...

Страница 9: ...s Instruments Incorporated TPS2373 4EVM 758 Evaluation Module 6 3 Efficiency Figure 5 illustrates the efficiency of the TPS237xEVM 758 Figure 5 Efficiency of the TPS2373 4EVM 758 VIN 48 V 7 EVM Assemb...

Страница 10: ...ut Guidelines www ti com 10 SLUUBJ1A February 2017 Revised June 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS2373 4EVM 758 Evaluation Module Figure 7 Top Side Ro...

Страница 11: ...and Layout Guidelines 11 SLUUBJ1A February 2017 Revised June 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS2373 4EVM 758 Evaluation Module Figure 9 Layer 3 Routi...

Страница 12: ...he input and an isolated converter output Place the TPS237x over split local ground planes referenced to VSS for the PoE input and to COM RTN for the converter Whereas the PoE side may operate without...

Страница 13: ...the quiet side of components instead of the switching side where possible like the output side of inductor Use Bob Smith terminations Bob Smith EFT capacitor and Bob Smith plane Use Bob Smith plane as...

Страница 14: ...10 0 1 ohm SMD 7343 31 TPSD477K006R0100 AVX C46 C49 2 0 1uF CAP CERM 0 1 F 25 V 10 X7R 0603 0603 885012206071 Wurth Elektronik C47 1 0 047uF CAP CERM 0 047 F 50 V 10 X7R 0603 0603 C1608X7R1H473K TDK C...

Страница 15: ...l 3x1 Gold SMT Samtec_TSM 103 01 X SV TSM 103 01 L SV Samtec J7 1 Header 100mil 2x2 Tin SMT 2x2 100mil Tin Header 15 91 2040 Molex J10 1 Header 100mil 5x2 Tin SMT 500x180x290mil TSM 105 01 T DV P Samt...

Страница 16: ...e R36 1 1 21k RES 1 21 k 1 0 1 W 0603 0603 CRCW06031K21FKEA Vishay Dale R38 1 1 00k RES 1 00 k 1 0 75 W 2010 2010 CRCW20101K00FKEF Vishay Dale R39 1 2k TRIMMER 2k ohm 0 5W TH 375x190x375mil 3386P 1 20...

Страница 17: ...P27 TP28 TP29 TP30 25 Test Point Miniature SMT Test Point Miniature SMT 5019 Keystone TP11 TP12 TP13 3 SMT Test Point Miniature SMT Testpoint_Keystone_Miniat ure 5015 Keystone U1 1 Mid Power bt PoE PD...

Страница 18: ...Texas Instruments Incorporated Revision History Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Original February 2017 to A R...

Страница 19: ...set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that...

Страница 20: ...the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain great...

Страница 21: ...t the EVM user guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the...

Страница 22: ...OST OF REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF...

Страница 23: ...TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD...

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