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PDF TMC389 Data sheet ( Hoja de datos )
| Número de pieza | TMC389 | |
| Descripción | Energy saving high resolution microstepping three phase stepper driver | |
| Fabricantes | TRINAMIC | |
| Logotipo |  |
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TMC389 DATASHEET (V. 1.15 / 2015-OCT-27)
1
TMC389–DATASHEET
Energy saving high resolution microstepping
three phase stepper driver with step and
direction interface and external power stage
TRINAMIC® Motion Control GmbH & Co. KG
Hamburg, GERMANY
www.trinamic.com
1 Features
The TMC389 is an energy efficient three phase stepper motor driver for high resolution microstepping
applications. It integrates a low resonance three phase chopper for quiet motor operation. Its step and
direction interface allows simple use. An SPI™ management interface allows for parameterization and
diagnostics. The TMC389 directly drives 3 external N/P channel dual MOSFETs for motor currents up
to 8A and up to 60V. Protection and diagnostic features further reduce system cost and increase
reliability.
Highlights
Up to 171 microsteps (256 sine wave steps) using step/direction interface or 20 Bit SPI™ interface
High precision sensorless motor load measurement stallGuard2
Energy efficiency and coolness by automatic load dependant motor current regulation coolStep™:
Save up to 75% of energy!
Internal microstep extrapolation allows 256 wave step smoothness with low frequency step input
Dual edge step option allows half step frequency requirement, e.g. for opto-couplers
Up to 8A Motor current using external N&P channel MOSFET pairs
Synchronous rectification reduces transistor heating
9V to 60V operating voltage (peak)
3.3V or 5V interface
QFN32 package for extremely small solution with superior thermal performance
EMV optimized current controlled gate drivers – up to 45mA gate current
Overcurrent, short to GND and overtemperature protection and diagnostics integrated
Applications
Precision three phase stepper motor drives
Stage lighting
Medical applications
Optical applications
Robotics
Motor type
3 phase Stepper
Copyright © 2010 TRINAMIC Motion Control GmbH & Co. KG
1 page  
TMC389 DATASHEET (V. 1.15 / 2015-OCT-27)
4 Pinning
4.1 TMC389-LA
GND
HU
HV
BMV
BMU
LU
LV
-
32 31 30 29 28 27 26 25
TMC 389-LA
9 10 11 12 13 14 15 16
VHS
HW
-
-
BMW
LW
-
SR
Top view
figure 2: TMC389 pinning
4.2 Package codes
Type
Package
TMC389 QFN32 (ROHS)
TMC389
eng.
sample
QFN32 (ROHS)
Temperature range
-40°C ... +125°C
-40°C ... +125°C
Code/marking
TMC389-LA
TMC389-ES
5
Copyright © 2010 TRINAMIC Motion Control GmbH & Co. KG
5 Page 
TMC389 DATASHEET (V. 1.15 / 2015-OCT-27)
11
6.3 Driver control register bit assignment
The driver control register is used to operate the device in SPI mode by setting phase currents for
Phase U and Phase V. Phase W is automatically calculated from the formula CW=-(CU+CV). In
StepDir mode, it selects Step and Direction interface specific parameters. They need to be initialized
once upon power up, and whenever basic parameters are required to be changed. Only write access
is possible.
Notation of hexadecimal and binary numbers:
0x precedes a hexadecimal number, % precedes a multi-bit binary number
The meaning of register 0 depends on the mode selection between SPI mode and StepDir mode as
selected by SDOFF (configuration register 11, bit 7).
6.3.1 Driver control register bit assignment in SPI mode
DRVCTRL
Bit Name
19 CFR
18 -
17 PHU
16 CU7
15 CU6
14 CU5
13 CU4
12 CU3
11 CU2
10 CU1
9 CU0
8 PHV
7 CV7
6 CV6
5 CV5
4 CV4
3 CV3
2 CV2
1 CV1
0 CV0
write 0xxx, SDOFF=1
Function
select configuration
register
reserved
Polarity U
Current U MSB
Comment
0: Operation mode dependent settings (see SDOFF)
set to 0
0 to max. 248 due to hysteresis setting. Depending on
the hysteresis setting, the maximum value becomes
even lower. The resulting value is not allowed to
overflow 255.
Current U LSB
Polarity V
Current V MSB
0 to max. 248 due to hysteresis setting. Depending on
the hysteresis setting, the maximum value becomes
even lower. The resulting value is not allowed to
overflow 255.
Current V LSB
Copyright © 2010 TRINAMIC Motion Control GmbH & Co. KG
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TMC389.PDF ] | |
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