TMC249-EVAL datasheet, PDF - EEWORLD Datasheet

TMC249-EVAL: DescriptionHigh Current Microstep Stepper Motor Driver with Sensorless Stall D e t e c t i o n ,P rotection / Diagnosis and SPI Interface; File Size268KB，2 Pages; ManufacturerETC

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TMC249-EVAL Overview

High Current Microstep Stepper Motor Driver with Sensorless Stall D e t e c t i o n ,P rotection / Diagnosis and SPI Interface

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Motion

Control

Integrated

Circuit

TMC

249

TRINAMIC

I C R O C H I P S

G M B H

Features

Drives 2-phase stepper motors

Integrated load measurment allows

sensorless stall detection (Pat. Fi.)StallGuard™

Up to 10A and 75V with external circuitry

7V to 28.5V motor supply voltage

Low power dissipation via external low

RDS-ON power stage

4 bit DACs allow up to 16 times µ-stepping via

SPI, higher resolution via analog control

Control via SPI with easy to use 12 bit

protocol or external analog / digital signals

Status Flags for short circuit,open load,

over temperature, temperature pre-warning,

undervoltage

Short circuit, over temperature, over voltage

protection integrated

Internal open load detector

Mixed decay feature for smooth motor

operation

3.3V or 5V operation for digital part

Current control allows cool motor and

driver operation

Standby and shutdown mode available

Slope control user programmable to reduce

electromagnetic emissions

Chopper frequency programmable via single

capacitor or external clock

Only 4 external PMOS transistors required for

unipolar operation

TMC249 Application Environment

High Current Microstep Stepper Motor Driver with Sensorless Stall

Detection,Protection / Diagnosis and SPI Interface

The TMC249 is a dual full bridge driver IC

for bipolar stepper motor control applica-

tions. The TMC249 is realized in a HVC-

MOS technology and directly

drives eight external Low-RDS-ON

high efficiency MOSFETs. It sup-

ports up to 4000mA coil current.

With additional drivers, motor current and

voltage can be increased. The driver tran-

sistors can be chosen depending on output

current or environment temperature. The

integrated unique sensorless stall detec-

tion (pat.fi.) StallGuard™ makes it a good

choice for applications, where a reference

point is needed, but where a switch is not

desired. Its ability to predict an overload

makes the TMC249 an optimum

choice for drives, where a high relia-

bility is desired. Internal DACs allow

microstepping as well as smart cur-

rent control. The device can be controlled by

a serial interface (SPI™) or by analog / digi-

tal input signals. Short circuit, temperature,

undervoltage and overvoltage protection are

integrated.

SPI

is a trademark of Motorola,Inc.

TMC249 Block Diagram

DEELBOEGENKAMP 4C 22297 HAMBURG GERMANY TEL +49 (0)40 - 51 48 06 0

FAX +49 (0)40 - 51 48 06 60

TRINAMICINORTHIAMERICA,IINC.I4011N.MICHIGANIAVE.ISUITE125251CHICAGO,IILLINOISI60611I TEL: 1-866-TRINAMIC

W W W . T R I N A M I C . C O M

TMC249-EVAL Related Products

	TMC249-EVAL	TMC249	TMC249-A
Description	High Current Microstep Stepper Motor Driver with Sensorless Stall D e t e c t i o n ,P rotection / Diagnosis and SPI Interface	High Current Microstep Stepper Motor Driver with Sensorless Stall D e t e c t i o n ,P rotection / Diagnosis and SPI Interface	High Current Microstep Stepper Motor Driver with Sensorless Stall D e t e c t i o n ,P rotection / Diagnosis and SPI Interface

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