TC115 - Carte d'évaluation Microchip - Free user manual and instructions

USER MANUAL TC115 Microchip

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- There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
• Microchip is willing to work with the customer who is concerned about the integrity of their code.
- Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as "unbreakable."

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip's code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

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Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company's quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001:2000 certified.

Table of Contents

Preface ....1

Chapter 1. Product Overview

1.1 Introduction ...... 5
1.2 What is the TC115 Evaluation Board? 5
1.3 What the TC115 Evaluation Board kit includes? 5

Chapter 2. Installation and Operation

2.1 Introduction ...... 7
2.2 Features 7
2.3 Getting Started 8

Appendix A. Schematic and Layouts

A.1 Introduction 9
A.2 Board Schematic 10
A.3 Board – Top Overlay 11
A.4 Board – Top Layer 12
A.5 Board – Bottom Layer ...... 13

Appendix B. Bill of Materials (BOM)

Worldwide Sales and Service 16

NOTES:

Preface

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available.

Documents are identified with a "DS" number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is "DSXXXXXA", where "XXXXX" is the document number and "A" is the revision level of the document.

For the most up-to-date information on development tools, see the MPLAB ^® IDE on-line help. Select the Help menu, and then Topics to open a list of available on-line help files.

INTRODUCTION

This chapter contains general information that will be useful to know before using the TC115 Evaluation Board. Items discussed in this chapter include:

• Document Layout
• Conventions Used in this Guide
• Recommended Reading
  • The Microchip Web Site
• Customer Support
  • Document Revision History

DOCUMENT LAYOUT

This document describes how to use the TC115 Evaluation Board as a development tool to emulate and debug firmware on a target board. The manual layout is as follows:

• Chapter 1. "Product Overview" – Important information about the TC115 Evaluation Board.
• Chapter 2. “Installation and Operation” – Includes a description of the evaluation board, as well as instructions on how to get started.
• Appendix A. “Schematic and Layouts” – Shows the schematic and layout diagrams for the TC115 Evaluation Board.
• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the TC115 Evaluation Board.

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples
Arial font:
Italic characters Referenced books	MPLAB	^ IDE User's Guide
	Emphasized text ...is the only compiler...
Initial caps A window the Output	window
	A dialog the Settings dialog
	A menu selection select Enable Programmer
Quotes A field name in a window or dialog		"Save project before build"
Underlined, italic text with right angle bracket	A menu path File>Save	——
Bold characters A dialog button	Click OK
	A tab	Click the Power tab
N'Rnnnn	A number in verilog format, where N is the total number of digits, R is the radix and n is a digit.	4'b0010, 2'hF1
Text in angle brackets <>	A key on the keyboard	Press,,
Courier New font:
Plain Courier New	Sample source code	#define START
	Filenames	autoexec.bat
	File paths	c:\mcc18\h
	Keywords	_asm, _endasm, static
	Command-line options	-Opa+, -Opa-
	Bit values	0, 1
	Constants	0xFF, 'A'
Italic Courier New	A variable argument	file.o, where file can be any valid filename
Square brackets []	Optional arguments	mcc18 [options] file [options]
Curly brackets and pipe character: { | }	Choice of mutually exclusive arguments; an OR selection	errorlevel {0|1}
Ellipses... Replaces repeated text var_name [,		var_name...]
		Represents code supplied by user void main (void){ ...}

RECOMMENDED READING

This user's guide describes how to use TC115 Evaluation Board. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources.

- TC115 Data Sheet - "PFM/PWM Step-Up DC/DC Converter" (DS21361)

This data sheet provides detailed information regarding the TC115 step-up converter.

Microchip provides online support via our web site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains the following information:

• Product Support – Data sheets and errata, application notes and sample programs, design resources, user's guides and hardware support documents, latest software releases and archived software
• General Technical Support – Frequently Asked Questions (FAQs), technical support requests, online discussion groups, Microchip consultant program member listing
• Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative
- Local Sales Office
• Field Application Engineer (FAE)
- Technical Support

Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document.

Technical support is available through the web site at: http://support.microchip.com.

DOCUMENT REVISION HISTORY

Revision B (January 2009)

• Updated Board Schematic (see Appendix A. "Schematic and Layouts").
• Updated Appendix B. "Bill of Materials (BOM)".

Revision A (September 2005)

- Initial Release of this Document.

NOTES:

Chapter 1. Product Overview

1.1 INTRODUCTION

The TC115 Evaluation Board is used to evaluate Microchip's TC115 in a single-cell boost converter application. As provided, the TC115 Evaluation Board generates a 3.0V output from a single-cell battery.

This chapter covers the following topics:

• What is the TC115 Evaluation Board?
• What the TC115 Evaluation Board Kit Includes?

1.2 WHAT IS THE TC115 EVALUATION BOARD?

The TC115 Evaluation Board is a complete, step-up, switch-mode, dc-dc power converter. The TC115 Evaluation Board generates a regulated 3.0V output at load currents up to 110 mA. Different output voltages are obtainable by replacing the fixed 3.0V output TC115 with a fixed 3.3V or 5.0V device. Since the TC115 operates from a minimum input voltage of 0.9V, the input voltage can be provided by a single-cell battery.

The TC115 Evaluation Board is provided with an aluminum electrolytic output capacitor. However, there are ceramic and tantalum capacitor pads so other capacitor technologies can be evaluated.

Test points are provided for input power, output load and shutdown control.

1.3 WHAT THE TC115 EVALUATION BOARD KIT INCLUDES?

This TC115 Evaluation Board Kit includes:

• The TC115 Evaluation Board (102-00074)
- Analog and Interface Products Demonstration Boards CD-ROM (DS21912) includes:
- TC115 Evaluation Board User's Guide (DS51578)

NOTES:

Chapter 2. Installation and Operation

2.1 INTRODUCTION

The TC115 Evaluation Board demonstrates Microchip's TC115 PFM/PWM step-up dc-dc converter in a single cell battery powered application. The TC115 is a high-efficiency step-up, dc-dc converter for small, low input voltage or battery-powered systems. The device has a start-up voltage of 0.9V. Due to its integrated MOSFET feature, the TC115 may be used in conjunction with only an external diode, an inductor and a capacitor to design a complete boost converter.

The TC115 Evaluation Board is shipped with an aluminum electrolytic output capacitor. However, there are additional surface-mount pads on the board to evaluate tantalum or ceramic capacitors.

2.2 FEATURES

The TC115 Evaluation Board has the following features:

• Regulated 3.0V output voltage
• Maximum output current: 110 mA
• Automatic PFM/PWM modes of operation
- Test point to apply external Enable signal

2.3 GETTING STARTED

The TC115 Evaluation Board is fully assembled and tested for generating a regulated 3.0V output voltage. The TC115 Evaluation Board requires the use of an external input voltage source (0.9V - 3.0V).

2.3.1 Power Input and Output Connections

2.3.1.1 POWERING THE TC115 EVALUATION BOARD

1. Apply the input voltage to the V_IN test point (TP1) and GND test point (TP4). The input voltage should be limited to the 0V to +3.0V range. For normal operation, the input voltage should be between +0.9V and +3.0V.

Note 1: Since the TC115 Evaluation Board is a boost converter, applying an input voltage greater than 3.0V will result in an output voltage equal to the input voltage. The TC115 Evaluation Board cannot regulate to an output voltage that is lower than the input voltage.

2: With the boost topology, there always exist a path from the input source to the output load.

2.3.1.2 APPLY THE LOAD TO THE REGULATED OUTPUT VOLTAGE TEST POINTS

1. To apply a load to the TC115 Evaluation Board, the positive side (+) of the load should be connected to the V_OUT test point (TP3). The negative side (−) of the load should be connected to the GND test point (TP2).

Note: Since the TC115 device receives bias from the output, it may be necessary to remove the load before starting the TC115 Evaluation Board.

1. The TC115 Evaluation Board is supplied with a fixed 3.0V output voltage version of the TC115. However, by changing the TC115 device, other output voltages can be achieved. Besides the fixed 3.0V version, the TC115 is also offered in a fixed 3.3V or 5.0V version.

2.3.1.3 ENABLING/DISABLING THE TC115 EVALUATION BOARD

The SHDN pin of the TC115 is pulled-up to V_IN to always enable the device. Test point TP5 can be used to apply an external Enable signal to the device.

Appendix A. Schematic and Layouts

A.1 INTRODUCTION

This appendix contains the following schematic and layout diagrams for the TC115 Evaluation Board:

• Board Schematic
• Board – Top Overlay
• Board – Top Layer
• Board – Bottom Layer

A.2 BOARD SCHEMATIC

A.3 BOARD - TOP OVERLAY

® MICROCHIP TC115 EVALUATION BOARD 102-00074 GND GND VIN + VOUT

A.4 BOARD - TOP LAYER

Abstract geometric pattern with blue and green blocks, red lines, and black dots (no text or symbols)

A.5 BOARD - BOTTOM LAYER

NOTES:

Appendix B. Bill of Materials (BOM)

TABLE B-1: BILL OF MATERIALS (BOM)

Qty.	Reference Description	Mfgr. Part Number
1 C1	0 μF, X5R Ceramic, 6	3V 0805 Panasonic	®	ECJ-CV50J106M
- C2	Do Not Populate —	—
1 C3	47 μF, Electrolytic Capacitator, 6.3V Nichicon		UWT0J470MCL1GB
- C4	Do Not Populate —	—
1 D1	A, 20V Shottky Diode	Diodes Inc.	DFLS120L
1 L1	100	μH, Inductor, SD25 Coiltronics ®		SD25-101-R
1 PCB	RoHS Compliant Bare PCB, TC115 PFM/PWM Boost Evaluation Board		—	104-00074
- R1	Do Not Populate —	—
1 R2	475K, 1/8W,1%, Chip Resistor, 0805 Rohm		MCR10EZHF4753
4 TP1	TP2, TP3, TP4 Test	Point Keystone Electronics ®		5016
1	U1	TC115 Step-up dc-dc Converter	Microchip Technology Inc.	TC115301EMTTR

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