MICROCHIP MIC4605 Evaluation Board User Guide
- June 10, 2024
- MICROCHIP
Table of Contents
MICROCHIP MIC4605 Evaluation Board User Guide
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All Rights Reserved.
ISBN: 978-1-6683-1452-4
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 “DSXXXXXXXA”, where “XXXXXXX” 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 online help. Select the Help menu, and
then Topics to open a list of available online help files.
INTRODUCTION
This chapter contains general information that will be useful to know before
using the MIC4605 Evaluation Board. Items discussed in this chapter include:
- Document Layout
- Conventions Used in this Guide
- Recommended Reading
- The Microchip Website
- Customer Support
- Document Revision History
DOCUMENT LAYOUT
This document describes how to use the MIC4605 Evaluation Board as a
demonstration board to evaluate the MIC4605 device. The manual layout is as
follows: · Chapter 1. “Product Overview” Provides a general description of
the
MIC4605 Evaluation Board. · Chapter 2. “Installation and Operation” Includes
a detailed description of the
evaluation board and instructions on how to use it. · Appendix A. “Schematic
and Layouts” Schematic and layout diagrams of the
MIC4605 Evaluation Board. · Appendix B. “Bill of Materials (BOM)” Lists the
parts used to build the
MIC4605 Evaluation Board.
MIC4605 Evaluation Board User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
RECOMMENDED READING
This user’s guide describes how to use MIC4605 Evaluation Board. The following
Microchip document is available and recommended as a supplemental reference
resource: · MIC4605 Data Sheet – “85V Half-Bridge MOSFET Drivers with Adaptive
Dead
Time and Shoot-Through Protection” This data sheet provides detailed
information regarding the MIC4605 device.
THE MICROCHIP WEBSITE
Microchip provides on-line support via our web site at
www.microchip.com. This website is used as a means
to make files and information easily available to customers. Accessible by
using your Favorite Internet browser, the website 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, on-line 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 A (October 2022)
- Converted Micrel document MIC4605 Evaluation Board to Microchip User’s Guide DS50003430A.
- Minor text changes throughout.
NOTES:
Chapter 1. Product Overview
1.1 GENERAL DESCRIPTION
The MIC4605 is an 85V half-bridge MOSFET driver that features adaptive-dead- time and shoot-through protection. The adaptive-dead-time circuitry actively monitors the half-bridge outputs to minimize the time between high-side and low-side MOSFET transitions, thus maximizing power efficiency. Anti-shoot- through circuitry prevents erroneous inputs and noise from turning both MOSFETs on at the same time. Additionally, the MIC4605’s adjustable gate drive sets the gate drive voltage to VDD for optimal MOSFET RDS(ON), which minimizes power loss due to the MOSFET’s RDS(ON).
1.1.1 Requirements
At a minimum, the evaluation board requires a 5.5V to 16V power supply to power the VDD terminal (J1) of the MIC4605 and another supply (up to 85V) may be used to power the MOSFETs connected to the VIN terminal (J2). A pulse generator or the output of a PWM control IC may be connected to the HI and LI terminals (-1), or PWM single input (-2).
1.1.2 Precautions
There is no reverse input protection on this board. When connecting the input sources, make sure that the correct polarity is observed. Under extreme load conditions and with a high supply voltage (>48V) connected to the VIN terminal (J2), input transients can be quite large if long test leads are used. In such cases a 100 F, 100V electrolytic capacitor is needed across the VIN terminals to prevent overvoltage damage to the IC. This can be removed if a clean supply voltage on VIN is always guaranteed. Data sheets and support documentation are available on the Microchip website: www.microchip.com
Chapter 2. Installation and Operation
2.1 GETTING STARTED
-
Connect VIN supply between the VIN and GND terminals and VDD supply between the VDD and GND terminals.
Connect a supply between the VIN terminal (J2) and the GND terminal (J3), paying careful attention to polarity and supply range (VIN 85V). Do not apply power until Step 5. Connect a supply between the VDD terminal (J1) and the GND terminal (J3), paying careful attention to polarity and supply range (5.5V VDD < 16V). Do not apply power until Step 5. -
Connect the TTL-compatible HI and LI inputs (-1), or the PWM single input (-2). Connect the HI input (JP2) and LI input (JP3) to a pulse generator or the output of a PWM control IC. Ensure that they are non-overlapping signals and are TTL compatible logic-levels. The PWM single input replaces the HI input (JP2) for the -2 option.
-
Monitor inputs and outputs. Monitor the inputs HI (JP2) and LI (JP3) or PWM (JP2) and outputs HO (JP1) and LO (JP4) with an oscilloscope.
-
Connect motor across HS and GND or connect HS to GND. The simplest way to observe the MIC4605 operation is to connect a motor across the HS terminal (J8) and GND (J9). Alternatively the HS terminal (J8) can be shorted to GND (J9) with the VIN supply turned OFF. DC and AC parameters can be easily measured in this configuration.
-
Turn-on supplies and HI/LI inputs. Turn-on the VDD power supply, followed by the VIN power supply. Turn on the HI and LI inputs (-1) or PWM single input (-2).
2.2 ORDERING INFORMATION
2.3 EVALUATION BOARD PERFORMANCE
Appendix A. Schematic and Layouts
A.1 EVALUATION BOARD SCHEMATIC (MIC4605YMT)
A.2 MIC4605YMT EVALUATION BOARD – TOP LAYER
A.3 MIC4605YMT EVALUATION BOARD – BOTTOM LAYER
A.4 EVALUATION BOARD SCHEMATIC (MIC4605YM)
A.5 MIC4605YM EVALUATION BOARD – TOP LAYER
A.6 MIC4605YM EVALUATION BOARD – BOTTOM LAYER
Appendix B. Bill of Materials (BOM)
Note
- TDK: www.tdk.com
- Murata: www.murata.com
- Kyocera AVX: www.kyocera-avx.com
- Analog Power: www.analogpowerinc.com
- Vishay: www.vishay.com
- Microchip Technology Inc.: www.microchip.com
Note
- TDK: www.tdk.com
- Murata: www.murata.com
- Kyocera AVX: www.kyocera-avx.com
- Analog Power: www.analogpowerinc.com
- Vishay: www.vishay.com
- Microchip Technology Inc.: www.microchip.com
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