Texas Instruments TPS25740AEVM-741 Скачать руководство пользователя страница 4 | Manualshive

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Texas Instruments TPS25740AEVM-741 Скачать руководство пользователя страница 4

Description

4

SLVUAP7A – April 2016 – Revised September 2016

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Copyright © 2016, Texas Instruments Incorporated

TPS25740EVM-741 and TPS25740AEVM-741 Evaluation Module User
Guide

2

Description

Referring to the schematic in

and

, a 12-V DC input is applied at the J1/J3 terminals or

J4 connector. The voltage at the DCDC_OUT node is regulated by the LM5175PWP buck-boost regulator
(U1) and associated circuitry. This provides a nominal 5-V, 5-A output for the TPS25740/TPS25740A (U2)
and associated output load.

A type C upstream facing port (UFP) is plugged in at J9. When TPS25740/TPS25740A detects the UFP
via CC1 or CC2 then it will activate Q6/Q10 with the GDNG signal. This will apply the default VBUS
voltage of 5 V at J9 to the UFP. A USB PD capable device can now request the power delivery
capabilities from the TPS25740/TPS25740A which are programmed by J7 and J8. Once the UFP knows
the voltage capabilities of the DFP then it can now request a different VBUS voltage.

The voltage change request gets processed by the TPS25740/TPS25740A and is relayed to the LM5175
regulator through the CTL1 and CTL2 pins. R21 and R24 program the default 5-V output at DCDC_OUT.
R22 and R19 are switched in by CTL1 and CTL2 respectively and are placed in parallel with R24 to
change the feedback voltage regulation point. Capacitors C31 and C32 provide slew rate control in order
to comply with the USB PD specification.

For more information and detailed design information, refer to the TPS25740/TPS25740A datasheet,
(

).

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Содержание TPS25740AEVM-741

Страница 1: ...will be very similar in an adapter application where an AC DC input power stage is used Note that this EVM does not support BC1 2 charging A TPS2514A can be added to DP and DM lines of the type C conn...

Страница 2: ...12 29 Unplug Then Replug in Quickly 12 30 5 5 A Load Step Triggers OCP 5 V 13 31 5 5 A Load Step Triggers OCP 12 V 13 32 5 5 A Load Step Triggers OCP 20 V 13 33 Plug In to MacBook 5 V 12 V 20 V Advert...

Страница 3: ...t 5 V 12 V and 20 V for TPS25740EVM 741 5 V 9 V and 15 V for TPS25740AEVM 741 Up to 5 A output current for all voltage levels Default is 3 A Smooth voltage transitions per USB PD specification Barrel...

Страница 4: ...tivate Q6 Q10 with the GDNG signal This will apply the default VBUS voltage of 5 V at J9 to the UFP A USB PD capable device can now request the power delivery capabilities from the TPS25740 TPS25740A...

Страница 5: ...3 100 R15 CS_P CS_N DCDC_OUT 9 53k R24 49 9k R21 GND TP7 PGOOD 1 F C6 TP1 VIN TP3 GND TP2 DCDC_OUT TP4 GND 0 RL2 220pF C14 FB VIN_IC NT1 Net Tie NT2 Net Tie VOSNS SLOPE 9V to 16V Input 42V Maximum 47...

Страница 6: ...5 6 Q6 24 9 R46 100 R45 DN DN DP DP 0 R33 VIN 1 00k R48 10 0 R53 J5 GND GDNS GDNG PCTRL GND GDb VPWR DSCG ISNS 560pF C29 560pF C30 1 2 3 4 5 6 7 8 J8 100k R28 100k R30 GND HDVDD HIPWR 1 2 3 4 5 6 7 8...

Страница 7: ...cription J7 PSEL PCTRL Used to program the PSEL and PCTRL pins of the TPS25740 and TPS25740A This advertises the power level to the UFP Install a single shunt in the P1 P2 P3 or P4 position Optionally...

Страница 8: ...from the TPSP25740 and TPS25740A that adjust the output voltage of the buck boost converter based on the following table Voltage contained in PDO requested by UFP CTL2 State CTL1 State 5 V High Z High...

Страница 9: ...voltage requests from the UFP to TPS25740 and TPS25740A EVM 4 Connect load between J2 and J5 as desired to test efficiency and other performance 6 Test Results This section provides typical performanc...

Страница 10: ...ght 2016 Texas Instruments Incorporated TPS25740EVM 741 and TPS25740AEVM 741 Evaluation Module User Guide Figure 10 5 V to 12 V Transition Figure 11 5 V to 20 V Transition Figure 12 12 V to 20 V Trans...

Страница 11: ...PS25740EVM 741 and TPS25740AEVM 741 Evaluation Module User Guide Figure 16 Start Into Short on Output Figure 17 Start Into Short on Output Extra 1000 F Between DCDC_out and GND Figure 18 Load Step Fro...

Страница 12: ...5740EVM 741 and TPS25740AEVM 741 Evaluation Module User Guide Figure 22 5 V Hot Short on UFP Side Figure 23 12 V Hot Short on UFP Side Figure 24 20 V Hot Short on UFP Side Figure 25 Overvoltage at 5 V...

Страница 13: ...Incorporated TPS25740EVM 741 and TPS25740AEVM 741 Evaluation Module User Guide Figure 28 Remove Input Power Figure 29 Unplug Then Replug in Quickly Figure 30 5 5 A Load Step Triggers OCP 5 V Figure 31...

Страница 14: ...d TPS25740EVM 741 and TPS25740AEVM 741 Evaluation Module User Guide Figure 34 Plug In to MacBook 5 V and 12 V Advertised Figure 35 Unplug MacBook 5 V 12 V 20 V Advertised Figure 36 Unplug MacBook 5 V...

Страница 15: ...2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated TPS25740EVM 741 and TPS25740AEVM 741 Evaluation Module User Guide 7 EVM Assembly Drawings and Layout Guidelines Figure...

Страница 16: ...i com 16 SLVUAP7A April 2016 Revised September 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated TPS25740EVM 741 and TPS25740AEVM 741 Evaluation Module User Guide Figure...

Страница 17: ...nes 17 SLVUAP7A April 2016 Revised September 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated TPS25740EVM 741 and TPS25740AEVM 741 Evaluation Module User Guide Figure 4...

Страница 18: ...nd CC2 traces as shown in Figure 39 These should be placed within one inch from the Type C connector Minimize stubs and tees from on the trace routes Q1 Place Q6 Q10 in a manner such that power flows...

Страница 19: ...36 C37 C38 C39 C40 10 10 4 7uF CAP CERM 4 7 F 50 V 10 X7R 1206 1206 GRM31CR71H475KA12L Murata C22 1 1 0 33uF CAP CERM 0 33 F 16 V 10 X7R 0603 0603 GRM188R71C334KA01D Murata C23 1 1 10uF CAP CERM 10 F...

Страница 20: ...120 ohm 5 0 25W 1206 1206 CRCW1206120RJNEA Vishay Dale R8 1 1 200k RES 200 k 1 0 1 W 0603 0603 CRCW0603200KFKEA Vishay Dale R9 R34 R35 3 3 5 1k RES 5 1 k 5 0 125 W 0805 0805 CRCW08055K10JNEA Vishay D...

Страница 21: ...4 Switch Synchronous Buck Boost Controller PWP0028F PWP0028F LM5175PWP Texas Instruments None U2 1 0 USB Power Delivery PD Provider Only and Type C Downward Facing Port DFP Port Controller RGE0024F R...

Страница 22: ...r previous revisions may differ from page numbers in the current version Changes from Original April 2016 to A Revision Page Deleted for AC Adapters from the title 1 Changed TPS2514 to TPS2514A in the...

Страница 23: ...ing the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repa...

Страница 24: ...transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indic...

Страница 25: ...ified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors current sens...

Страница 26: ...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 USE L...

Страница 27: ...are returned during the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasona...

Страница 28: ...transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indic...

Страница 29: ...ified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors current sens...

Страница 30: ...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 USE L...

Страница 31: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Страница 32: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TPS25740AEVM 741 TPS25740EVM 741...

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