Microchip MIC28515 Handleiding

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 2017-2021 Microchip Technology Inc. DS50002591C
MIC28515 75V/5A HLL
Step-Down Evaluation Board
User’s Guide
DS50002591C-page 2  2017-2021 Microchip Technology Inc.
Information contained in this publication is provided for the sole
purpose of designing with and using Microchip products. Infor-
mation regarding device applications and the like is provided
only for your convenience and may be superseded by updates.
It is your responsibility to ensure that your application meets
with your specifications.
THIS INFORMATION IS PROVIDED BY MICROCHIP "AS IS".
MICROCHIP MAKES NO REPRESENTATIONS OR WAR-
RANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED,
WRITTEN OR ORAL, STATUTORY OR OTHERWISE,
RELATED TO THE INFORMATION INCLUDING BUT NOT
LIMITED TO ANY IMPLIED WARRANTIES OF NON-
INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A
PARTICULAR PURPOSE OR WARRANTIES RELATED TO
ITS CONDITION, QUALITY, OR PERFORMANCE.
IN NO EVENT WILL MICROCHIP BE LIABLE FOR ANY INDI-
RECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUEN-
TIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND
WHATSOEVER RELATED TO THE INFORMATION OR ITS
USE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS
BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES
ARE FORESEEABLE. TO THE FULLEST EXTENT
ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON
ALL CLAIMS IN ANY WAY RELATED TO THE INFORMATION
OR ITS USE WILL NOT EXCEED THE AMOUNT OF FEES, IF
ANY, THAT YOU HAVE PAID DIRECTLY TO MICROCHIP
FOR THE INFORMATION. Use of Microchip devices in life sup-
port and/or safety applications is entirely at the buyer's risk, and
the buyer agrees to defend, indemnify and hold harmless
Microchip from any and all damages, claims, suits, or expenses
resulting from such use. No licenses are conveyed, implicitly or
otherwise, under any Microchip intellectual property rights
unless otherwise stated.
Note the following details of the code protection feature on Microchip devices:
• Microchip products meet the specifications contained in their particular Microchip Data Sheet.
• Microchip believes that its family of products is secure when used in the intended manner and under normal conditions.
• There are dishonest and possibly illegal methods being used in attempts to breach the code protection features of the Microchip
devices. We believe that these methods require using the Microchip products in a manner outside the operating specifications
contained in Microchip's Data Sheets. Attempts to breach th likely, cannot be accomplished ese code protection features, most
without violating Microchip's intellectual property rights.
• Microchip is willing to work with any customer who is concerned about the integrity of its code.
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of its code. Code protection does not
mean that we are guaranteeing the product ng. We at Microchip are is "unbreakable." Code protection is constantly evolvi
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.
Trademarks
The Microchip name and logo, the Microchip logo, Adaptec,
AnyRate, AVR, AVR logo, AVR Freaks, BesTime, BitCloud, chipKIT,
chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex,
flexPWR, HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck,
LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi,
Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer,
PackeTime, PIC, picoPower, PICSTART, PIC32 logo, PolarFire,
Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC, SST,
SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon,
TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA are registered
trademarks of Microchip Technology Incorporated in the U.S.A. and
other countries.
AgileSwitch, APT, ClockWorks, The Embedded Control Solutions
Company, EtherSynch, FlashTec, Hyper Speed Control, HyperLight
Load, IntelliMOS, Libero, motorBench, mTouch, Powermite 3,
Precision Edge, ProASIC, ProASIC Plus, ProASIC Plus logo, Quiet-
Wire, SmartFusion, SyncWorld, Temux, TimeCesium, TimeHub,
TimePictra, TimeProvider, WinPath, and ZL are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any
Capacitor, AnyIn, AnyOut, Augmented Switching, BlueSky,
BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive,
CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net,
Dynamic Average Matching, DAM, ECAN, Espresso T1S,
EtherGREEN, IdealBridge, In-Circuit Serial Programming, ICSP,
INICnet, Intelligent Paralleling, Inter-Chip Connectivity,
JitterBlocker, maxCrypto, maxView, memBrain, Mindi, MiWi,
MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK,
NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net,
PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE,
Ripple Blocker, RTAX, RTG4, SAM-ICE, Serial Quad I/O,
simpleMAP, SimpliPHY, SmartBuffer, SMART-I.S., storClad, SQI,
SuperSwitcher, SuperSwitcher II, Switchtec, SynchroPHY, Total
Endurance, TSHARC, USBCheck, VariSense, VectorBlox, VeriPHY,
ViewSpan, WiperLock, XpressConnect, and ZENA are trademarks
of Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated in
the U.S.A.
The Adaptec logo, Frequency on Demand, Silicon Storage
Technology, and Symmcom are registered trademarks of Microchip
Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology Germany
II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in
other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2017-2021, Microchip Technology Incorporated, All Rights
Reserved.
ISBN: 978-1-5224-8464-6
For information regarding Microchip’s Quality Management Systems,
please visit www.microchip.com/quality.
MIC28515 75V/5A HLL
STEP-DOWN EVALUATION BOARD
USER’S GUIDE
 2017-2021 Microchip Technology Inc. DS50002591C-page 3
Table of Contents
Preface ........................................................................................................................... 5
Introduction............................................................................................................ 5
Document Layout .................................................................................................. 5
Conventions Used in this Guide............................................................................ 6
Recommended Reading........................................................................................ 7
The Microchip Website.......................................................................................... 7
Customer Support ................................................................................................. 7
Document Revision History ................................................................................... 7
Chapter 1. Product Overview
1.1 Introduction ..................................................................................................... 9
1.2 MIC28515 75V/5A HLL Step-Down Evaluation Board Overview ................... 9
1.3 MIC28515 75V/5A HLL Step-Down Evaluation Board Features .................. 10
1.4 What the MIC28515 75V/5A HLL Step-Down Evaluation Board Kit Contains .
10
Chapter 2. Installation and Operation
2.1 System and Configuration Requirements ..................................................... 11
2.2 Board Setup ................................................................................................. 11
2.3 Circuit Description ........................................................................................ 12
2.3.1 Feedback Resistors ................................................................................... 12
2.3.2 SW Node .................................................................................................. 13
2.3.3 Current Limit .............................................................................................. 13
2.3.4 Loop Gain Measurement ........................................................................... 13
2.3.5 Setting the Switching Frequency ............................................................... 13
2.3.6 MODE selection pin ................................................................................... 14
2.3.7 Auxiliary Bootstrap LDO (EXTVDD) .......................................................... 14
Appendix A. Schematic and Layouts
A.1 Introduction .................................................................................................. 15
A.2 Board – Schematic ....................................................................................... 16
A.3 Board – Top Silk .......................................................................................... 17
A.4 Board – Top Copper and Silk ....................................................................... 17
A.5 Board – Top Copper .................................................................................... 18
A.6 Board – MID Copper Layer 1 ....................................................................... 18
A.7 Board – Mid Copper Layer 2 ........................................................................ 19
A.8 Board – Bottom Copper .............................................................................. 19
A.9 Board – Bottom Copper and Silk ................................................................. 20
Appendix B. Bill of Materials (BOM)
Worldwide Sales and Service .................................................................................... 23

Product specificaties

Merk: Microchip
Categorie: Niet gecategoriseerd
Model: MIC28515

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