Texas Instruments TPS40345EVM-353 Скачать руководство пользователя страница 18

Evaluation Board/Kit Important Notice

Texas Instruments (TI) provides the enclosed product(s) under the following conditions:

This evaluation board/kit is intended for use for

ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES

ONLY

and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have

electronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental
measures typically found in end products that incorporate such semiconductor components or circuit boards. This evaluation board/kit does
not fall within the scope of the European Union directives regarding electromagnetic compatibility, restricted substances (RoHS), recycling
(WEEE), FCC, CE or UL, and therefore may not meet the technical requirements of these directives or other related directives.

Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from
the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER
AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims
arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge.

EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

TI currently deals with a variety of customers for products, and therefore our arrangement with the user

is not exclusive.

TI assumes

no liability for applications assistance, customer product design, software performance, or infringement of patents or

services described herein.

Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide prior to handling the product. This
notice contains important safety information about temperatures and voltages. For additional information on TI’s environmental and/or
safety programs, please contact the TI application engineer or visit

www.ti.com/esh

.

No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or
combination in which such TI products or services might be or are used.

FCC Warning

This evaluation board/kit is intended for use for

ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES

ONLY

and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and can radiate radio

frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC rules, which are
designed to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments may
cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may
be required to correct this interference.

EVM Warnings and Restrictions

It is important to operate this EVM within the input voltage range of and the output voltage range of .

Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions
concerning the input range, please contact a TI field representative prior to connecting the input power.

Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM.
Please consult the EVM User's 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, some circuit components may have case temperatures greater than . The EVM is designed to operate properly
with certain components above as long as the input and output ranges are maintained. These components include but are not limited to
linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identified using the
EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during operation, please be
aware that these devices may be very warm to the touch.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Copyright © 2017, Texas Instruments Incorporated

Содержание TPS40345EVM-353

Страница 1: ...4 3 Test Point Descriptions 5 5 Test Setup 7 5 1 Equipment 7 5 2 Equipment Setup 7 5 3 Start Up Shutdown Procedure 9 5 4 Output Ripple Voltage Measurement Procedure 9 5 5 Control Loop Gain and Phase...

Страница 2: ...Top View 15 14 TPS40345EVM 353 Bottom Copper Top View 15 15 TPS40345EVM 353 Internal 1 X Ray Top View 16 16 TPS40345EVM 353 Internal 2 X Ray Top View 16 List of Tables 1 TPS40345EVM 353 Electrical an...

Страница 3: ...output voltage rating 20 A steady state load current 600 kHz switching frequency Simple access to IC features including power good enable soft start and error amplifier Convenient test points for simp...

Страница 4: ...U588 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module 3 TPS40345EVM 353 Schematic For reference only See Table 3 for specific...

Страница 5: ...5EVM 353 must be disabled via JP2 or powered down by reducing VIN to less than 3 V to remove or install JP1 4 3 Test Point Descriptions Table 2 Test Point Descriptions TEST POINT LABEL USE SECTION TP1...

Страница 6: ...and TP11 The TPS40345EVM 353 provides three test points for measuring the error amplifier input and output voltages This allows the user to directly measure the feedback and control voltages of the T...

Страница 7: ...of current The minimum recommended wire size is AWG 16 with the total length of wire less than 2 feet 1 foot input 1 foot return J2 to LOAD1 The connection between the source voltage VIN and J1 of TPS...

Страница 8: ...PS40345EVM 353 Evaluation Module 4 Connect ammeter A1 between VIN and J1 as shown in Figure 2 5 Connect voltmeter V1 to TP1 and TP2 as shown in Figure 2 6 Connect voltmeter V2 to TP3 and TP4 as shown...

Страница 9: ...to 20 Adc 5 Vary VIN from 8 V to 14 V 6 Decrease VIN to 0 V 7 Decrease LOAD1 to 0 A 5 4 Output Ripple Voltage Measurement Procedure 1 Follow Section 5 3 steps 1 5 to set VIN and LOAD1 to the desired...

Страница 10: ...be measured by the phase difference between channel A and channel B 10 Control to output response power stage transfer function can be measured by connecting channel A probe to TP10 COMP and channel B...

Страница 11: ...S40345EVM 353 Test Data 11 SNVU588 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module 6 2 Line and Load Regulation VIN 8 0V 14V...

Страница 12: ...November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module 6 4 Switch Node VIN 12V VOUT 1 2V IOUT 20 A Ch1 TP12 HDRV Ch2 13 TP SW Ch3...

Страница 13: ...approximately 10 mV modulation of the output voltage generated when FSS is enabled Figure 10 TPS40345EVM 353 Output Ripple With FSS Enabled 7 TPS40345EVM 353 Assembly Drawings and Layout The following...

Страница 14: ...ww ti com 14 SNVU588 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module Figure 11 TPS40345EVM 353 Component Placement Top View...

Страница 15: ...s and Layout 15 SNVU588 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module Figure 13 TPS40345EVM 353 Top Copper Top View Figure...

Страница 16: ...w ti com 16 SNVU588 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated TPS40345EVM 353 Evaluation Module Figure 15 TPS40345EVM 353 Internal 1 X Ray Top View Figu...

Страница 17: ...nch ED120 2DS OST 2 JP1 JP2 PEC02SAAN Header 2 pin 100mil spacing 0 100 inch x 2 PEC02SAAN Sullins 1 L1 0 38 H Inductor SMT 35A 0 512 x 0 571 inch PG0077 401NLT Pulse 1 Q1 CSD16410Q5A MOSFET N Chan 25...

Страница 18: ...o handling the product This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI a...

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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