MSK MSK4364 User Manual

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4707 DEY ROAD LIVERPOOL, NY 13088

PHONE: [phone] | FAX: [phone]
M.S. KENNEDY CORPORATION MSK Web Site:

http://www.mskennedy.com/

Application Note 011

MSK4364 Evaluation Board User's Guide

By Bob Abel & Dan Williams, MS Kennedy Corp.; Revised 9/19/2013

Introduction

The MSK 4364 is a complete 3 Phase MOSFET Bridge Brushless Motor Control System in
an electrically isolated hermetic package. The hybrid is capable of 5 amps of output current
and 55 volts of DC bus voltage. It has the normal features for protecting the bridge. Included
is all the bridge drive circuitry, hall sensing circuitry, commutation circuitry and all the
current sensing and analog circuitry necessary for closed loop current mode (torque) control.
When PWM'ing, the transistors are modulated in locked anti-phase mode for the tightest
control and the most bandwidth. Provisions for applying different compensation schemes
are included. The MSK 4364 has good thermal conductivity of the MOSFET's due to
isolated substrate/package design that allows direct heat sinking of the hybrid without
insulators.

This configuration can be used to control a variety of loads, such as a brushed DC motor or
a voice coil. Because of the internal PWM generator, all the user needs to do is provide an
analog voltage representative of the PWM duty cycle desired on the output.

The evaluation board provides a platform from which to evaluate new designs with ample
real estate to make changes and evaluate results. Evaluation early in the design phase
reduces the likelihood of excess ripple, instability, or other issues, from becoming a problem
at the application PCB level.

This application note is intended to be used in conjunction with the MSK4364 data
sheet. Reference the device data sheet for additional application information and
specifications.

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Setup

Use the standard 4mm banana jacks to interface with the assembly to connect to your
power supply and motor assembly. Use the BNC interface connections for
monitoring the phases, and for your analog input for setting the speed and direction.

Design Details

Device Block Diagram

PCB Artwork

Top Side Bottom Side

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Schematic

Bill of Materials

Ref Des/Qty Value Manufacturer P/N

R2-R4 OPTIONAL
R1 2K (VARIABLE)
C1 0.33µF (VARIABLE)
C2 0.01µF (VARIABLE)
C15, C16 4.7µF Panasonic Electronics EEE-HA2A4R7P
C3-C11 0.01µF Panasonic Electronics ECJ-2VB1H103K
C14 0.1µF, 100V AVX CORP CK06BX104K
C13 6.8µF, 100V ILLINOIS CAPACITOR 685MWR100K
C12 1200µF, 63V United Chemi-Con ELXZ630ELL122ML40S
D1, D2, D3 MUR120 ON Semiconductor MUR120T3G
21 BANANA JACKS EMERSON/JOHNSON 108-09XX-001
5 BNC’S TE Connectivity 1-1337542-0
48 .015/.025 dia. pin rece pt. MILL MAX 0677-0-15-01-30-27-10-0
16 .022/.032 dia. pin rece pt. MILL MAX 0295-0-15-01-06-27-10-0
4 7/8”, #4, STANDOFFS
4 3/8”, #4, SCREWS
1 MSK 4364 MSK
1 MSK 4364 EVAL BOARD ADVANCED CIRCUITS