Trinamic TMC603-EVAL evaluation Board TMC603-EVAL 데이터 시트

Trinamic

제품 코드

TMC603-EVAL

TMC603 DATA SHEET (V. 1.05 / 11. Mar. 2009)

3

Copyright © 2008 TRINAMIC Motion Control GmbH & Co. KG

2 Table of contents

FEATURES .......................................................................................................................................... 1

TABLE OF CONTENTS ........................................................................................................................ 3

SYSTEM ARCHITECTURE USING THE TMC603 ................................................................................... 5

PINOUT ............................................................................................................................................. 6

............................................................................................................................. 6

ACKAGE DIMENSIONS

QFN52 ........................................................................................................... 7

TMC603 FUNCTIONAL BLOCKS .......................................................................................................... 8

LOCK DIAGRAM AND PIN DESCRIPTION

................................................................................................ 8

................................................................................................................ 10

Principle of operation ....................................................................................................... 10

Break-before-make logic ................................................................................................... 11

PWM control via microcontroller ...................................................................................... 12

Slope control .................................................................................................................... 13

Reverse capacity (QGD) protection .................................................................................... 14

Considerations for QGD protection ................................................................................... 15

Effects of the MOSFET bulk diode ..................................................................................... 16

Adding Schottky diodes across the MOSFET bulk diodes ................................................. 16

Short to GND detection .................................................................................................... 17

Error logic ......................................................................................................................... 17

URRENT MEASUREMENT AMPLIFIERS

.................................................................................................. 19

Current measurement timing............................................................................................ 19

Auto zero cycle ................................................................................................................. 20

Measurement depending on chopper cycle ...................................................................... 20

Compensating for offset voltages .................................................................................... 20

Getting a precise current value ........................................................................................ 20

SENSORLESS COMMUTATION

.................................................................................................. 21

Adjusting the hallFX spike suppression time ................................................................... 21

Adjusting the hallFX filter frequency ................................................................................ 22

Block commutation chopper scheme for hallFX ............................................................... 22

Start-up sequence for the motor with forced commutation ............................................ 23

............................................................................................................................. 25

Switching regulator and charge pump............................................................................. 25

Charge pump .................................................................................................................... 27

Supply voltage filtering .................................................................................................... 27

Reverse polarity protection ............................................................................................... 27

Standby with zero power consumption ........................................................................... 27

Low voltage operation down to 9V ................................................................................. 28

................................................................................................................................ 29

ABSOLUTE MAXIMUM RATINGS ..................................................................................................... 30

ELECTRICAL CHARACTERISTICS ...................................................................................................... 30

..................................................................................................................... 30

HARACTERISTICS AND

........................................................................... 31

DESIGNING THE APPLICATION ...................................................................................................... 38

HOOSING THE BEST FITTING POWER

MOSFET .................................................................................... 38

Calculating the MOSFET power dissipation ...................................................................... 38

....................................................................................................................... 40

TMC603 ......................................................................................... 40

TABLE OF FIGURES ......................................................................................................................... 41