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TMC249 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers

No. de pieza TMC249
Descripción Electrónicos  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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Fabricante Electrónico  ETC1 [List of Unclassifed Manufacturers]
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TMC249 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers

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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.
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
Features
g Drives 2-phase stepper motors
g Integrated load measurment allows
sensorless stall detection (Pat. Fi.)StallGuard™
g
Up to 10A and 75V with external circuitry
g
7V to 28.5V motor supply voltage
g Low power dissipation via external low
RDS-ON power stage
g 4 bit DACs allow up to 16 times µ-stepping via
SPI, higher resolution via analog control
g
Control via SPI with easy to use 12 bit
protocol or external analog / digital signals
g Status Flags for short circuit,open load,
over temperature, temperature pre-warning,
undervoltage
g Short circuit, over temperature, over voltage
protection integrated
g Internal open load detector
g Mixed decay feature for smooth motor
operation
g 3.3V or 5V operation for digital part
g Current control allows cool motor and
driver operation
g Standby and shutdown mode available
g Slope control user programmable to reduce
electromagnetic emissions
g
Chopper frequency programmable via single
capacitor or external clock
g Only 4 external PMOS transistors required for
unipolar operation
249
High Current Microstep Stepper Motor Driver with Sensorless Stall
Detection,Protection / Diagnosis and SPI Interface
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
T R I N A M I C
I M I C R O C H I P S I G M B H
Motion
Control
Integrated
Circuit
TMC
TMC249 Block Diagram
TMC249 Application Environment
W W W . T R I N A M I C . C O M
SPI
TM is a trademark of Motorola,Inc.


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