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TMC603A: 产品描述Three phase motor driver with BLDC back EMF commutation hallFX⑩ and current sensing; 文件大小787KB，共44页; 制造商Trinamic Motion Control GmbH; 官网地址https://www.trinamic.com/

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TMC603A概述

Three phase motor driver with BLDC back EMF commutation hallFX⑩ and current sensing

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TMC603A DATA SHEET (V. 1.15 / 2009-Nov-19)

TMC603A – DATASHEET

Three phase motor driver with BLDC back EMF

commutation hallFX™ and current sensing

TRINAMIC Motion Control GmbH & Co. KG

Sternstraße 67

D – 20357 Hamburg

GERMANY

www.trinamic.com

1 Features

The TMC603 is a three phase motor driver for highly compact and energy efficient drive solutions. It

contains all power and analog circuitry required for a high performance BLDC motor system. The

TMC603 is designed to provide the frontend for a microcontroller doing motor commutation and control

algorithms. It directly drives 6 external N-channel MOSFETs for motor currents up to 30A and up to

50V and integrates shunt less current measurement, by using the MOSFETs channel resistance for

sensing. Integrated hallFX™ (pat.) allows for sensorless commutation. Protection and diagnostic

features as well as a step down switching regulator further reduce system cost and increase reliability.

Highlights

Up to 30A motor current, up to 50V operating voltage

3.3V or 5V interface

8mm x 8mm QFN package

Integrated dual range high precision current measurement amplifiers

Supports shunt less current measurement using power MOS transistor RDSon

hallFX™ sensorless back EMF commutation emulates hall sensors

Integrated break-before-make logic: No special microcontroller PWM hardware required

EMV optimized current controlled gate drivers – up to 150mA possible

Overcurrent / short to GND and undervoltage protection and diagnostics integrated

Internal Q

protection: Supports latest generation of power MOSFETs

Integrated supply concept: Step down switching regulator up to 500mA / 300kHz

Common rail charge pump allows for 100% PWM duty cycle

Applications

Motor driver for industrial applications

Integrated miniaturized drives

Robotics

High-reliability drives (dual position sensor possible)

Pump and blower applications with sensorless commutation

Motor type

3 phase BLDC, stepper, DC motor

Sine or block commutation

Rotor position feedback: Sensorless, encoder or hall sensor, or any mix

*) note: The term TMC603 in this datasheet refers to the TMC603A and TMC603

TMC603A DATA SHEET (V. 1.15 / 2009-Nov-19)

2 Table of contents

FEATURES

.......................................................................................................................................... 1

TABLE OF CONTENTS

........................................................................................................................ 3

SYSTEM ARCHITECTURE USING THE TMC603

................................................................................... 5

PINOUT

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

4.1

4.2

ACKAGE CODES

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

ACKAGE DIMENSIONS

QFN52

........................................................................................................... 7

TMC603 FUNCTIONAL BLOCKS

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

5.1

LOCK DIAGRAM AND PIN DESCRIPTION

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

5.2

MOSFET D

RIVER

TAGE

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

5.2.1

Principle of operation

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

5.2.2

Break-before-make logic

................................................................................................... 11

5.2.3

PWM control via microcontroller

...................................................................................... 12

5.2.4

Slope control

.................................................................................................................... 13

5.2.5

Reverse capacity (QGD) protection

.................................................................................... 14

5.2.6

Considerations for QGD protection

................................................................................... 15

5.2.7

Effects of the MOSFET bulk diode

..................................................................................... 16

5.2.8

Adding Schottky diodes across the MOSFET bulk diodes

................................................. 16

5.2.9

Short to GND detection

.................................................................................................... 17

5.2.10

Error logic

......................................................................................................................... 17

5.2.11

Paralleling gate drivers for higher gate current

............................................................... 18

5.3

URRENT MEASUREMENT AMPLIFIERS

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

5.3.1

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

5.3.2

Auto zero cycle

................................................................................................................. 20

5.3.3

Measurement depending on chopper cycle

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

5.3.4

Compensating for offset voltages

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

5.3.5

Getting a precise current value using MOSFET on-resistance

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

5.4

HALL

FX™

SENSORLESS COMMUTATION

............................................................................................... 22

5.4.1

Adjusting the hallFX™ spike suppression time

................................................................ 23

5.4.2

Adjusting the hallFX™ filter frequency

............................................................................. 23

5.4.3

Block commutation chopper scheme for hallFX™

............................................................ 24

5.4.4

Start-up sequence for the motor with forced commutation

............................................ 24

5.5

OWER SUPPLY

............................................................................................................................. 26

5.5.1

Switching regulator

.......................................................................................................... 26

5.5.2

Charge pump

.................................................................................................................... 28

5.5.3

Filter capacitors for switching regulator and charge pump

............................................. 28

5.5.4

Supply voltage filtering and layout considerations

......................................................... 28

5.5.5

Reverse polarity protection

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

5.5.6

Standby with zero power consumption

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

5.5.7

Low voltage operation down to 9V

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

5.6

EST OUTPUT

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

5.7

ESD

SENSITIVE DEVICE

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

ABSOLUTE MAXIMUM RATINGS

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

ELECTRICAL CHARACTERISTICS

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

7.1

7.2

PERATIONAL

ANGE

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

DC C

HARACTERISTICS AND

IMING

HARACTERISTICS

........................................................................... 32

DESIGNING THE APPLICATION

...................................................................................................... 39

8.1

HOOSING THE BEST FITTING POWER

MOSFET

.................................................................................... 39

8.1.1

Calculating the MOSFET power dissipation

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

TMC603A DATA SHEET (V. 1.15 / 2009-Nov-19)

3 System architecture using the TMC603

POWER

TMC603A

NFET power MOS half bridges

slope

control

slope HS

slope LS

12V step

down

regulator

linear

regulator

BUS / IO

1 of 3 shown

DRIVER

SECTION

HS-drive

micro

controller

break

before

make

logic

gate off detection

BLDC motor

LS-drive

bridge current

measurement

short to

GND

detection

position sensor

optional shunt

resistors

HallFX

for

sensorless

commutation

short to GND 1,2,3

error logic

figure 1: application block diagram

The TMC603 is a BLDC driver IC using external power MOS transistors. Its unique feature set allows

equipping inexpensive and small drive systems with a maximum of intelligence, protection and

diagnostic features. Control algorithms previously only found in much more complex servo drives can

now be realized with a minimum of external components. Depending on the desired commutation

scheme and the bus interface requirements, the TMC603 forms a complete motor driver system in

combination with an external 8 bit processor or with a more powerful 32 bit processor. A simple

system can work with three standard PWM outputs even for sine commutation! The complete analog

amplification and filtering frontend as well as the power driver controller are realized in the TMC603.

Its integrated support for sine commutation as well as for back EMF sensing saves cost and allows for

maximum drive efficiency.

The external microcontroller realizes commutation and control algorithms. Based on the position

information from an encoder or hall sensors, the microcontroller can do block commutation or sine

commutation with or without space vector modulation and realizes control algorithms like a PID

regulator for velocity or position or field oriented control based on the current signals from the

TMC603. For sensorless commutation, the microcontroller needs to do a forward controlled motor start

without feedback. This can be realized either using block commutation or sine commutation. A sine

commutated start-up minimizes motor vibrations during start up. As soon as the minimum velocity for

hallFX™ is reached, it can switch to block commutation and drive the motor based on the hallFX™

signals.

The TMC603 also supports control of three phase stepper motors as well as two phase stepper

motors using two devices.

TMC603A

TMC603A概述

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