Texas Instruments TPS65100EVM-030 Manuale utente

TPS65100EVMĆ030

February 2004 PMP Portable Power

User’s Guide

SLVU101

IMPORTANT NOTICE

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accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI

deems necessary to support this warranty. Except where mandated by government requirements, testing of all

parameters of each product is not necessarily performed.

TI assumes no liability for applications assistance or customer product design. Customers are responsible for

their products and applications using TI components. To minimize the risks associated with customer products

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Mailing Address: Texas Instruments

Post Office Box 655303 Dallas, Texas 75265

EVM IMPORTANT NOTICE

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

This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION

PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided

may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective

considerations, including product safety measures typically found in the end product incorporating the goods.

As a prototype, this product 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 evaluation kit not meet the specifications indicated in the EVM User’s Guide, the 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. Please be aware that the products

received may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). 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 EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM

User’s Guide prior to handling the product. This notice contains important safety information about temperatures

and voltages. For further safety concerns, please contact the TI application engineer.

Persons handling the product must have electronics training and observe good laboratory practice standards.

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.

Mailing Address:

Texas Instruments

Post Office Box 655303

Dallas, Texas 75265

EVM WARNINGS AND RESTRICTIONS

It is important to operate this EVM within the input voltage range of 2.7 V to 5.8 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.

During normal operation, some circuit components may have case temperatures greater than

125°C. The EVM is designed to operate properly with certain components above 125°C 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

How to Use This Manual

iii

Preface



About This Manual

This users guide describes the characteristics, operation, and use of the

TPS65100EVM-030 evaluation module (EVM). This EVM contains Texas

Instruments TPS65100 triple output LCD supply IC with linear regulator

controller and VCOM buffer. This users guide includes EVM specifications,

test results, schematic diagram, bill of materials (BOM), and recommended

test setup.

How to Use This Manual

This document contains the following chapters:

-Chapter 1 – Introduction

-Chapter 2 – EVM Operation

-Chapter 3 – Board Layout

-Chapter 4 – Bill of Materials and Schematic

Related Documentation From Texas Instruments

SLVS496 − TPS65100 data sheet

If you need Assistance

Contact your local TI sales representative.

FCC Warning

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.

Trademark

Powermite is a registered trademark of Microsemi Corporation.

Contents



1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1 Background 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Performance Specification Summary 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 Modifications 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 EVM Operation 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1 Input/Output Connect 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.1 J1−VIN 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.2 J2−GND 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.3 J3−VOUT1 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.4 J4−GND 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.5 J5−VCOM 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.6 J6−GND 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.7 J7−VCOMIN 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.8 J8−VOUT4 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.9 J9−GND 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.10 J10−VOUT2 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.11 J11−GND 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.12 J12−VOUT3 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.13 J13−GND 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.14 JP2−Enable (EN) 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.15 JP3−Enable Regulator (ENR) 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.16 JP2 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Test Setup 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Test Results 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Board Layout 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1 Layout 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Bill of Materials and Schematic 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 Bill of Materials for VIN = 3.3 V and VOUT1 = 10 V 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 Bill of Materials for VIN = 5 V and VOUT1 = 13.5 V 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Schematic 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents



2−1 TPS65100 VOUT1 Efficiency 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2−2 TPS65100 Main Boost Converter Load Transient for VI= 3.3 V and VO= 10 V 2-4. . . . . . . .

2−3 TPS65100 Main Boost Converter Load Transient for VI= 5 V and VO= 13.5 V 2-4. . . . . . . .

3−1 Top Assembly Layer 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3−2 Top Layer Routing 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3−3 Bottom Layer Routing 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4−1 TPS65100EVM Schematic 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



1−1 Performance Specification Summary for VI= 3.3 V and VOUT1 = 10 V 1-2. . . . . . . . . .

1−2 Performance Specification Summary for VI= 5 V and VOUT1 = 13.5 V 1-3. . . . . . . . . . . . . . .

4−1 Bill of Materials for VIN = 3.3 V and VOUT1 = 10 V 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4−2 Bill of Materials for VIN = 5 V and VOUT1 = 13.5 V 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

Introduction



This chapter contains background information for the TPS65100EVM-030

evaluation module.

Topic Page

1.1 Background 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Performance Specification Summary 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 Modifications 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 1

Background

1-2

1.1 Background

The TPS65100EVM uses a TPS65100 multichannel output IC to provide three

LCD power rails, as well as a linear regulator controller to provide 3.3 V and

a VCOM buffer. The goal of the EVM is to facilitate evaluation of the

TPS65100.

1.2 Performance Specification Summary

Table 1−1 provides a summary of the TPS65100EVM performance

specifications. All specifications are given for an ambient temperature of 25°C.

Table 1−1.Typical Performance Specification Summary for VIN = 3.3 V and VOUT1 = 10 V,

TA= 25°C

Specification

Voltage Range

(V) Current Range

(mA)

Specification

Min Typ Max Min Typ Max

VIN 2.7 3.3 4.0 3000

VOUT1 9.85 10 10.15 0 300

VOUT2 −5.10 −5 −4.90 0 20 (1)

VOUT3 22.5 23 23.5 0 20 (1)

VOUT4 N/A(2) N/A

VCOM 4.92 5 5.07 0 650 peak (1)

1) Maximum currents are determined by ambient conditions.

2) The linear regulator requires VIN ≥3.7 V for normal operation and should

be disabled using JP3.

1.3 Modifications

The primary goal of this EVM is to facilitate user evaluation of the TPS65100.

To facilitate user customization of the EVM, the board was designed with

devices having 603 or larger footprints. So, a real implementation would likely

occupy less total board space.

Changing components can improve or degrade EVM performance. For

example, using an inductor with larger dc resistance for the main boost

converter will lower efficiency of the solution. In addition, using a BJT with

lower Beta or in a smaller package will limit the total output current that the

linear regulator can provide.

The main boost converter requires external compensation components (R7,

C11) for stability. This EVM has been optimized for an input voltage of 3.3 V.

If a different input voltage and/or a different output voltage is to be applied, the

main boost converter needs to be re-compensated in order to be stable over

the entire load and temperature range (see Table 1−2 and Table 4−2).

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