Texas Instruments TPS630702EVM User manual

SLVUBR1–August 2019

TPS630702EVM User's Guide

User's Guide

SLVUBR1–August 2019

TPS630702EVM User's Guide

This user’s guide describes the characteristics, operation, and use of the TPS630702EVM evaluation

module (EVM). The TPS630702EVM is designed to help the users easily evaluate and test the operation

and functionality of the TPS630702 Buck-Boost Converter. The TPS630702EVM uses the TPS630702

adjustable version with output discharge function. The output voltage is set to 3.3 V to 5 V. The user can

select the output voltage with the VSEL pin. The EVM operates from 2 V to 16 V input voltage. Output

currents can go up to 2 A in buck mode and boost mode. This document includes setup instructions for

the hardware, a schematic diagram, a bill of materials (BOM), and printed-circuit board (PCB) layout

drawings for the evaluation module. Throughout this document, the abbreviations EVM, TPS630702EVM,

and the term evaluation module are synonymous with the TPS630702, unless otherwise noted.

Figure 1. TPS63802 EVM Picture

Contents

1 Introduction ................................................................................................................... 2

1.1 Background.......................................................................................................... 2

1.2 Performance Specification......................................................................................... 3

1.3 Modifications......................................................................................................... 3

2 Setup .......................................................................................................................... 3

2.1 Input/Output Connector and Header Descriptions.............................................................. 3

2.2 Setup ................................................................................................................. 4

3 Board Layout ................................................................................................................. 5

3.1 TPS630702EVM Layout ........................................................................................... 5

4 Schematic and Bill of Materials ............................................................................................ 8

4.1 TPS630702EVM Schematic....................................................................................... 8

Introduction

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4.2 Bill of Materials...................................................................................................... 9

Trademarks

All trademarks are the property of their respective owners.

1 Introduction

The Texas Instruments TPS630702 is a highly efficient, single-inductor, internally compensated, buck-

boost converter in a 15-pin, 2.5-mm × 3-mm HotRod package. Both fixed and adjustable output voltage

units are available.

1.1 Background

The TPS630702EVM uses the TPS630702 adjustable-output voltage and output discharge version of the

integrated circuit (IC) and is set to a 3.3 V to 5 V output. The fixed-output version(s) can be evaluated on

this EVM with minor modification as stated in section titled, Fixed Output Operation. The EVM operates

with an input voltage between 2 V and 16 V.

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Introduction

SLVUBR1–August 2019

TPS630702EVM User's Guide

1.2 Performance Specification

Table 1 provides a summary of the TPS630702EVM performance specifications. All specifications are

given for an ambient temperature of 25°C.

Table 1. Performance Specification Summary

Specification Test Conditions Min Typ Max Unit

Input voltage 2 16 V

Output voltage 2.5 5 9 V

Output current during operation VIN ≥4.5 V 0 2000 mA

during operation VOUT ≥4.5 and boost factor

(VOUT/VIN)≤10 2000 mA

Operating frequency 2400 kHz

1.3 Modifications

The printed-circuit board (PCB) for this EVM is designed to accommodate both the fixed and adjustable

versions of this IC. If the fixed version is installed, R1 and R3 are replaced with a 0-Ωresistor and R2 is

open. Extra positions are available for additional input and output capacitors.

1.3.1 Adjustable-Output IC U1 Operation

U1 is configured for evaluation of the adjustable-output version. This unit is set to 5 V. Resistors R1, R2

and R3 can be used to set the output voltage between 2 V and 9 V. See the data sheet for recommended

values.

1.3.2 Fixed-Output Operation

U1 can be replaced with the fixed version for evaluation. With the fixed version, R1 and R3 need to be

replaced with a 0-Ωresistor; R2 position is open.

2 Setup

This section describes how to properly use the TPS630702EVM.

2.1 Input/Output Connector and Header Descriptions

2.1.1 J1, Pin 1 and 2 – VIN

Positive input connection from the input supply for the EVM.

2.1.2 J1, Pin 3 and 4 – S+/S-

Input voltage sense connections. Measure the input voltage at this point.

2.1.3 J1, Pin 5 and 6 – GND

VIN GND return connection from the input supply for the EVM, common with J2, pin 5 and 6.

2.1.4 J2, Pin 1 and 2 – VOUT

Output voltage connection.

2.1.5 J2, Pin 3 and 4 – S+/S-

VOUT Sense and GND Sense low-current sense lines for sampling the output voltage at the output

capacitor.

Setup

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2.1.6 J2, Pin 5 and 6 – GND

VOUT GND return connection for the output voltage, common with J1 pin 5 and 6.

2.1.7 J5 – PG GND

Power Good (PG) test point and GND connection.

2.1.8 JP1 – ENABLE

Shorting jumper between the center pin EN and HIGH turns on the unit. Shorting jumper between the

center pin EN and LOW turns the unit off.

2.1.9 JP2 – VSEL

Shorting jumper between the center pin VSEL and HIGH sets the output voltage to 5 V. Shorting jumper

between the center pin VSEL and LOW sets the output voltage to 3.3 V.

2.1.10 JP3 – PWR Save

Shorting jumper between the center pin PS/SYNC and HIGH enables automatic transition to power-saving

mode at light-load currents as described in the data sheet; shorting jumper between the center pin

PS/SYNC and LOW enables forced PWM mode.

2.2 Setup

To operate the EVM, connect an input supply with the positive lead to J1, pins 1 and 2 and negative lead

to J1, pins 5 and 6; connect a load with the positive lead to J2, pins 1 and 2 and the negative lead to J2,

pins 5 and 6; short EN and HIGH (pins 2 and 3) of JP1 with a shorting jumper.

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Board Layout

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TPS630702EVM User's Guide

3 Board Layout

This section provides the TPS630702EVM board layout and illustrations.

3.1 TPS630702EVM Layout

Figure 2 through Figure 4 show the board layout for the TPS630702EVM PCB.

Figure 2. Assembly Layer of TPS630702EVM

Board Layout

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Figure 3. Top Layer Routing of TPS630702EVM

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Board Layout

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Figure 4. Bottom Layer Routing of TPS630702EVM

Schematic and Bill of Materials

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4 Schematic and Bill of Materials

This section provides the TPS630702EVM schematic and bill of materials.

4.1 TPS630702EVM Schematic

Figure 5. TPS630702EVM Schematic

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Schematic and Bill of Materials

SLVUBR1–August 2019

TPS630702EVM User's Guide

4.2 Bill of Materials

Table 2. TPS630702EVM Bill of Materials

Count RefDes Value Description Size Part Number MFR

2 C1,C4 10uF CAP, CERM, 10 µF, 25 V, +/- 20%, X5R, 0603 0603 GRM188R61E106MA73 Murata

2 C2,C3 10uF CAP, CERM, 10 µF, 25 V, +/- 20%, X7S, 0805 0805 GRM21BC71E106ME11L Murata

3 C5, C6, C7 22uF CAP, CERM, 22 µF, 16 V, +/- 20%, X6S, 0805 0805 GRM21BC81C226ME44L Murata

1 C8 0.1uF CAP, CERM, 0.1 µF, 25 V, +/- 10%, X7R, 0402 0402 GRM155R71C104KA55 Murata

1 C9 68uF CAP, TA, 68 µF, 20 V, +/- 10%, 0.15 ohm, SMD 7343-31 T495D686K020ATE150 Kemet

1 L1 1.5uF Inductor, Shielded, Composite, 1.5 µH, 4.6 A,

0.01ohm, SMD 4x2x4mm XFL4020-152MEB Coilcraft

1 R1 470k RES, 470 k, 1%, 0.1 W, 0603 0603 RC0603FR-07470KL Yageo

1 R2 150k RES, 150 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 CRCW0603150KFKEA Vishay-Dale

1 R3 221k RES, 221 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 CRCW0603221KFKEA Vishay-Dale

1 R4 100k RES, 100 k, 1%, 0.1 W, 0603 0603 RC0603FR-07100KL Yageo

1 R5 10.0k RES, 10.0 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 CRCW060310K0FKEA Vishay-Dale

1 U1 Wide input voltage (2V-16V) buck-boost converter,

RNM0015A (VQFN-HR-15) RNM0015A TPS630702RNMR TI

STANDARD TERMS FOR EVALUATION MODULES

1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or

documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance

with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.

1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility

evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not

finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For

clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions

set forth herein but rather shall be subject to the applicable terms that accompany such Software

1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,

or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production

system.

2Limited Warranty and Related Remedies/Disclaimers:

2.1 These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License

Agreement.

2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM

to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by

neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have

been altered or modified in any way by an entity other than TI, (b) the nonconformity resulted from User's design, specifications

or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control

techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM.

User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10)

business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.

2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty 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 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 repair such EVM or provide replacements. Repaired EVMs shall be

warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day

warranty period.

WARNING

Evaluation Kits are intended solely for use by technically qualified,

professional electronics experts who are familiar with the dangers

and application risks associated with handling electrical mechanical

components, systems, and subsystems.

User shall operate the Evaluation Kit within TI’s recommended

guidelines and any applicable legal or environmental requirements

as well as reasonable and customary safeguards. Failure to set up

and/or operate the Evaluation Kit within TI’s recommended

guidelines may result in personal injury or death or property

damage. Proper set up entails following TI’s instructions for

electrical ratings of interface circuits such as input, output and

electrical loads.

NOTE:

EXPOSURE TO ELECTROSTATIC DISCHARGE (ESD) MAY CAUSE DEGREDATION OR FAILURE OF THE EVALUATION

KIT; TI RECOMMENDS STORAGE OF THE EVALUATION KIT IN A PROTECTIVE ESD BAG.

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