Texas Instruments TPS2378EVM-602 User Manual Download Page 19 | Manualshive

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19

SLVUAG7A – May 2015 – Revised July 2017

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Copyright © 2015–2017, 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 (May 2015) to A Revision

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Changed T1 transformer in the BOM from PA4036NL (Pulse Engineering), to 750315775 (Wurth Elektronik).

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Summary of Contents for TPS2378EVM-602

Page 1: ...8 7 EVM Assembly Drawing and Layout Guidelines 10 8 Bill of Materials 15 List of Figures 1 TPS2378EVM 602 PD Front End Schematic 3 2 TPS2378EVM 602 Dual PD section 4 3 TPS2378EVM 602 DCDC Converter S...

Page 2: ...ied to the power pins of connectors J1 or J3 42 5 57 V Operating Voltage 1 After start up 30 57 Input UVLO POE input J1 1 Rising input voltage 40 Falling input voltage 30 Detection voltage 1 at device...

Page 3: ...hm L6 PAIR12 PAIR36 PAIR45 PAIR78 CHGND D8 D9 D10 D11 D12 D13 D14 D15 1 2 3 4 J8 DNP J9 DNP J10 DNP BRG1 BRG2 BRG1 BRG1 BRG2 BRG2 TP16 TP12 TP13 TP14 TP15 VSS2 VSS1 VDD 1 2 3 4 5 6 7 8 9 10 11 12 13 1...

Page 4: ...4 7 8 1 2 3 5 6 FDMS86105 Q9 4 7 8 1 2 3 5 6 FDMS86105 Q8 0 R43 DNP BAT46W 7 F D20 30 1k R42 20 0k R50 DNP VBIAS VBIAS PGND LO E6SF ABCB 24 1 Z D16 VOUT PGND LO E6SF ABCB 24 1 Z D18 49 9k R46 10 0k R4...

Page 5: ...12 PGND 13 AUX 14 OUT 15 PVDD 16 VDD 17 LINEUV 18 LINEOV 19 NC 20 U6 UCC2897APW 0 01 F C18 80 6k R16 61 9k R20 100k R21 1 F C20 2 61k R10 4 22k R13 7 50k R15 10 1W R6 VBIAS VOUT LY E6SF AABA 46 1 Z D...

Page 6: ...2P T2P output signals for both TPS2378 PDs J7 T2P VPU2 T2P Pull up voltage of PD2 J11 Load Delay Disable Disables load delay Table 3 Test Points Test Points Label Description TP1 Output Output voltage...

Page 7: ...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 Figure 4 Typical TPS2378EVM 602 Test Setup 5...

Page 8: ...e 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 show...

Page 9: ...artup with less than 13 W per pair for 80 ms during PSE inrush When using the TPS2378EVM 602 EVM with the TPS23861EVM 612 for evaluation while using resistive loads the output load must be light enoug...

Page 10: ...tion Feedback Copyright 2015 2017 Texas Instruments Incorporated TPS2378EVM 602 Evaluation Module 7 EVM Assembly Drawing and Layout Guidelines 7 1 PCB Drawings Figure 8 to Figure 13 show component pla...

Page 11: ...and Layout Guidelines 11 SLVUAG7A May 2015 Revised July 2017 Submit Documentation Feedback Copyright 2015 2017 Texas Instruments Incorporated TPS2378EVM 602 Evaluation Module Figure 10 Layer 2 Routing...

Page 12: ...es www ti com 12 SLVUAG7A May 2015 Revised July 2017 Submit Documentation Feedback Copyright 2015 2017 Texas Instruments Incorporated TPS2378EVM 602 Evaluation Module Figure 12 Bottom Side Routing spa...

Page 13: ...t and an isolated converter output Place the TPS2378 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 a grou...

Page 14: ...tead 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 ground shield on input side of...

Page 15: ...AP CERM 1uF 16V 10 X5R 0603 0603 C0603C105K4PACTU Kemet C21 1 0 047uF CAP CERM 0 047 F 50 V 10 X7R 0603 0603 GRM188R71H473KA61D Murata C24 1 0 039uF CAP CERM 0 039 F 25 V 10 X7R 0603 0603 06033C393KAT...

Page 16: ...CSD18504Q5A Texas Instruments R1 1 39k RES 39k ohm 5 0 25W 1206 1206 CRCW120639K0JNEA Vishay Dale R2 1 4 7 RES 4 7 ohm 5 0 1W 0603 0603 CRCW06034R70JNEA Vishay Dale R3 R47 R54 3 10 0k RES 10 0 k 1 0...

Page 17: ...3 2 25 5k RES 25 5 k 1 0 1 W 0603 0603 CRCW060325K5FKEA Vishay Dale SH J1 SH J2 SH J3 SH J4 4 1x2 Shunt 100mil Gold plated Black Shunt 969102 0000 DA 3M T1 1 62uH Transformer 62uH SMT 26 4x13 7x32mm 7...

Page 18: ...Texas Instruments Incorporated TPS2378EVM 602 Evaluation Module Table 4 TPS2378EVM 602 BOM continued Designator Quantity Value Description Package Reference Part Number Manufacturer R50 0 20 0k RES 20...

Page 19: ...2017 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 May 2015 to A R...

Page 20: ...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...

Page 21: ...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...

Page 22: ...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...

Page 23: ...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...

Page 24: ...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...

Page 25: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TPS2378EVM 602...

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