Texas Instruments TPS5420EVM-175 SWIFT Скачать руководство пользователя страница 14

FCC Warnings

This equipment is intended for use in a laboratory test environment only. It generates, uses, and can radiate radio frequency
energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of 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 TERMS AND CONDITIONS

Texas Instruments (TI) provides the enclosed Evaluation Module and related material (EVM) to you, the user, (you or user)
SUBJECT TO the terms and conditions set forth below. By accepting and using the EVM, you are indicating that you have read,
understand and agree to be bound by these terms and conditions. IF YOU DO NOT AGREE TO BE BOUND BY THESE TERMS
AND CONDITIONS, YOU MUST RETURN THE EVM AND NOT USE IT.

This EVM is provided to you by TI and is intended for your INTERNAL ENGINEERING DEVELOPMENT OR EVALUATION
PURPOSES ONLY
. It is provided “AS IS” and “WITH ALL FAULTS.” It is not considered by TI to be fit for commercial use. As
such, the EVM may be incomplete in terms of required design-, marketing-, and/or manufacturing-related protective considerations,
including product safety measures typically found in the end product. As a prototype, the EVM does not fall within the scope of the
European Union directive on electromagnetic compatibility and therefore may not meet the technical requirements of the directive.

Should this EVM not meet the specifications indicated in the EVM User’s Guide, it may be returned within 30 days from the date of
delivery for a full refund of any amount paid by user for the EVM, which user agrees shall be user’s sole and exclusive remedy.
THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY TI TO USER, AND IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY, FITNESS
FOR ANY PARTICULAR PURPOSE OR NON-INFRINGEMENT.

TI shall have no obligation to defend any claim arising from the EVM, including but not limited to claims that the EVM infringes third
party intellectual property. Further, TI shall have no liability to user for any costs, losses or damages resulting from any such
claims. User shall indemnify and hold TI harmless against any damages, liabilities or costs resulting from any claim, suit or
proceeding arising from user’s handling or use of the EVM, including but not limited to, (I) claims that the EVM infringes a third
party’s intellectual property, and (ii) claims arising from the user’s use or handling of the EVM. TI shall have no responsibility to
defend any such claim, suit or proceeding.

User assumes all responsibility and liability for proper and safe handling and use of the EVM and the evaluation of the EVM. TI
shall have no liability for any costs, losses or damages resulting from the use or handling of the EVM. User acknowledges that the
EVM may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). Due to the open construction of the EVM it is the
user’s responsibility to take any and all appropriate precautions with regard to electrostatic discharge.

EXCEPT TO THE EXTENT OF THE USER’S INDEMNITY OBLIGATIONS SET FORTH ABOVE, NEITHER PARTY SHALL BE
LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES WHETHER TI IS
NOTIFIED OF THE POSSIBILITY OR NOT.

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.

User agrees to read the EVM User’s Guide and, specifically, the EVM warnings and Restrictions notice in the EVM User’s Guide
prior to handling the EVM and the product. This notice contains important safety information about temperatures and voltages.

It is user’s responsibility to ensure that persons handling the EVM and the product have electronics training and observe good
laboratory practice standards.

By providing user with this EVM, product and services, TI is NOT granting user any license in any patent or other intellectual
property right.

EVM WARNINGS AND RESTRICTIONS

It is important to operate this EVM within the input voltage range of 10 V to 36 V and the output
voltage range of 1.3 V to 5 V.

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.

Содержание TPS5420EVM-175 SWIFT

Страница 1: ...ints 3 5 TPS5420EVM 175 Bill of Materials 13 This user s guide contains background information for the TPS5420 as well as support documentation for the TPS5420EVM 175 evaluation module HPA175 Also included are the performance specifications the schematic and the bill of materials for the TPS5420EVM 175 The TPS5420 dc dc converter is designed to provide up to a 2 A continuous 3 A peak output from a...

Страница 2: ...PECIFICATION TEST CONDITIONS MIN TYP MAX UNIT VIN voltage range 10 36 V Output voltage set point 5 0 V Output current range VIN 10 V to 36 V 0 2 5 A Line regulation IO 1 A VIN 3 V 6 V 0 11 Load regulation VIN 25 V IO 0 A to 2 5 A 0 1 Load transient response Voltage change IO 0 75 A to 2 25 A 40 mV Recovery time 200 µs Voltage change IO 2 25 A to 0 75 A 40 mV Recovery time 200 µs Loop bandwidth VIN...

Страница 3: ...hould be 2 A Wire lengths should be minimized to reduce losses in the wires Test point TP1 provides a place to monitor the VIN input voltages with TP2 providing a convenient ground reference TP3 is used to monitor the output voltage with TP4 as the ground reference Table 4 EVM Connectors and Test Points Reference Designator Function J1 VIN 10 V to 36 V J2 OUT 5 V at 2 A maximum JP1 2 pin header fo...

Страница 4: ...0 0 10 0 20 0 30 0 0 5 1 1 5 2 I Output Current A O Output Regulation Test Setup and Results Figure 1 Measured Efficiency TPS5420 The output voltage load regulation of the TPS5420EVM 175 is shown in Figure 2 the output voltage line regulation is shown in Figure 3 Measurements are given for an ambient temperature of 25 C Figure 2 Load Regulation 4 TPS5420EVM 175 SWIFT Regulator Evaluation Module SL...

Страница 5: ...00 m VOUT 50 mV Div AC Coupled Test Setup and Results Figure 3 Line Regulation The TPS5420EVM 175 response to load transients is shown in Figure 4 The current step is from 25 to 75 of maximum rated load Total peak to peak voltage variation is as shown including ripple and noise on the output Figure 4 Load Transient Response TPS5420 SLVU163 April 2006 TPS5420EVM 175 SWIFT Regulator Evaluation Modul...

Страница 6: ...sponse characteristics are shown in Figure 5 Gain and phase plots are shown for VIN voltage of 25 V and a 1 A load current Figure 5 Measured Loop Response TPS5420 VIN 25 V The TPS5420EVM 175 output voltage ripple is shown in Figure 6 The input voltage is VIN 25 V for the TPS5420 Output current is the rated full load of 2 A Voltage is measured directly across output capacitors Figure 6 Measured Out...

Страница 7: ...en the input voltage reaches the internally set UVLO threshold voltage of 5 3 V the slow start sequence begins The internal reference begins to ramp up linearly at the internally set slow start rate towards 1 221 V and the output ramps up toward the set voltage of 5 V The output may be inhibited by using a jumper at JP1 to tie ENA to GND When the jumper is removed ENA is released and the slow star...

Страница 8: ...e remaining pins of the TPS5420 and a large area filled with ground The bottom layer contains ground and some signal routing The top and bottom and internal ground traces are connected with multiple vias placed around the board including four vias directly under the TPS5420 device to provide a thermal path from the PowerPAD land to ground The input decoupling capacitors C1 and C4 and bootstrap cap...

Страница 9: ...www ti com Board Layout Figure 10 Top Side Layout SLVU163 April 2006 TPS5420EVM 175 SWIFT Regulator Evaluation Module 9 Submit Documentation Feedback ...

Страница 10: ...www ti com Board Layout Figure 11 Bottom Side Layout Looking From Top Side 10 TPS5420EVM 175 SWIFT Regulator Evaluation Module SLVU163 April 2006 Submit Documentation Feedback ...

Страница 11: ...ls Schematic and Bill of Materials Figure 12 Top Side Assembly The TPS5420EVM 175 schematic and bill of materials are presented in this section SLVU163 April 2006 TPS5420EVM 175 SWIFT Regulator Evaluation Module 11 Submit Documentation Feedback ...

Страница 12: ...Schematic and Bill of Materials The schematic for the TPS5420EVM 175 is shown in Figure 13 Figure 13 TPS5420EVM 175 Schematic TPS5420EVM 175 SWIFT Regulator Evaluation Module 12 SLVU163 April 2006 Submit Documentation Feedback ...

Страница 13: ...7 x 0 25 ED1514 OST 1 JP1 Header 2 pin 100mil spacing 36 pin strip 0 100 x 2 PTC36SAAN Sullins 1 L1 33 µH Inductor SMT 2 2A 75milliohm 0 484 x 0 484 MSS1260 333 Coilcraft 1 R1 10 0 k Resistor Chip 1 16W 1 0603 Std Std 1 R2 3 24 k Resistor Chip 1 16W 1 0603 Std Std 1 R3 0 Resistor Chip 1 16W 1 0603 Std Std 4 TP1 TP3 Test Point Red Thru Hole Color Keyed 0 100 x 0 100 5000 Keystone TP5 TP6 2 TP2 TP4 ...

Страница 14: ...armless against any damages liabilities or costs resulting from any claim suit or proceeding arising from user s handling or use of the EVM including but not limited to I claims that the EVM infringes a third party s intellectual property and ii claims arising from the user s use or handling of the EVM TI shall have no responsibility to defend any such claim suit or proceeding User assumes all res...

Страница 15: ...onents 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 B...

Страница 16: ...tute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of information in TI data books or data sheets is permissible only if reproduction is...

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