Datasheet > TMC249

TMC249

更新时间： 2024-11-21 06:02:31

品牌	Logo	应用领域
TRINAMIC		驱动
页数	文件大小	规格书
1页	496K
描述
Microstep Driver for External MOSFETs for up to 4A with stall Guard™

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TMC249 数据手册

POWER DRIVER FOR STEPPER MOTORS

INTEGRATED CIRCUITS

TMC249

Microstep Driver

for External MOSFETs

for up to 4A

with stallGuard™

MAIN CHARACTERISTICS

INFO The TMC249 is a smart high current microstepping driver for

bipolar stepper motors. The integrated unique sensorless stall

detection stallGuard™ makes it a good choice for applications

where a reference point is needed, but where a switch cannot

be used. The ability to predict an overload makes the TMC249

an optimum choice for drives where a high reliability is desired.

It provides an SPI™ interface as well as the classical analog/

digital control. A full set of protection and diagnostic features

makes this device very rugged. It directly drives external MOSFETs

for currents of up to 4A. (A list of compatible power MOSFETs

is given within the datasheet.) This way it reaches an extremely

high efficiency and allows driving of a high motor current with-

out cooling measures even at high environment temperatures.

With the new chip-scale QFN package a 4A motor driver can be

realized on the size of a stamp!

• sensorless stall detection StallGuard™

• full protection and diagnostics

• low power dissipation

• 16 times microstepping via SPI,

64 times using additional shift register,

even more via analog control

• mixed decay for smooth operation

• programmable slope control for low EME

• internal or external chopper clock

• standby and shutdown mode

INTERFACE • easy-to-use SPI™ interface

• classical analog interface

ELECTRICAL • up to 4000 mA coil current (peak) with

DATA

just 4 external dual MOSFETS

• 7V to 34V motor supply (TMC249A),

up to 60V using a few add. components

The high motor current makes this device ideal for miniaturized

highly dynamic and high torque drive systems.

• higher current / voltage

using additional gate drivers

• 3.3V or 5V operation for digital part

PACKAGE • standard SO28 package

• chip size QFN32 7x7 mm² package

• RoHS compliant

TMC249

C/CLK

OSC

PWM control

Gate Driver

IN A

Coil A

4 bit

DACs

Control

IN B

Step

Current

Diagnostics

monitoring

Motor

SPI

Stallguard

10 mm

PWM control

ERROR

Gate Driver

Coil B

3.3 / 5V DC

7..34V DC

Temp / Volt

protection

ORDER CODE

DESCRIPTION

TMC249A-SA

4A driver with stallGuard™ for external MOSFETs, SO28

4A driver with stallGuard™ for external MOSFETs, QFN32

TMC32NP, TMC32NP2, TMC34NP

TMC249A-LA

与TMC249相关器件

型号	品牌	获取价格	描述	数据表
TMC249_05	ETC	获取价格	High Current Microstep Stepper Motor Driver with sensorless stall detection, protection /
TMC249_1	TRINAMIC	获取价格	High current microstep stepper motor driver w
TMC249_11	TRINAMIC	获取价格	High current microstep stepper motor driver
TMC249_16	TRINAMIC	获取价格	High current microstep stepper motor driver
TMC2490A	CADEKA	获取价格	Multistandard Digital Video Encoder
TMC2490A	FAIRCHILD	获取价格	Multistandard Digital Video Encoder
TMC2490AR2C	FAIRCHILD	获取价格	Multistandard Digital Video Encoder
TMC2490AR2C	CADEKA	获取价格	Multistandard Digital Video Encoder
TMC2490AR2C	RAYTHEON	获取价格	Color Signal Encoder, CMOS, PQCC44, PLASTIC, LCC-44
TMC2490R2C	RAYTHEON	获取价格	Color Signal Encoder, CMOS, PQCC44, PLASTIC, LCC-44

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