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PDF TMC5031 Data sheet ( Hoja de datos )
| Número de pieza | TMC5031 | |
| Descripción | POWER DRIVER | |
| Fabricantes | TRINAMIC | |
| Logotipo |  |
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POWER DRIVER FOR STEPPER MOTORS
INTEGRATED CIRCUITS
TMC5031 DATASHEET
Dual, cost-effective controller and driver for up to two 2-phase bipolar stepper motors.
Integrated motion controller with SPI interface.
APPLICATIONS
CCTV, Security
Antenna Positioning
Heliostat Controller
Battery powered applications
Office Automation
ATM, Cash recycler, POS
Lab Automation
Liquid Handling
Medical
Printer and Scanner
Pumps and Valves
FEATURES AND BENEFITS
2-phase stepper motors
Drive Capability up to 2 x 1.1A coil current
Motion Controller with sixPoint™ramp
Voltage Range 4.75… 16V DC
SPI Interface
2x Ref.-Switch input per axis
Highest Resolution 256 microsteps per full step
Full Protection & Diagnostics
stallGuard2™ high precision sensorless motor load detection
coolStep™ load dependent current control for energy savings up
to 75%
spreadCycle™ high-precision chopper for best current sine wave
form and zero crossing with additional chopSync2™
Compact Size 7x7mm QFN48 package
BLOCK DIAGRAM
2x Ref. Switches
Power
Supply
Charge
Pump
SPI
MOTION CONTROLLER
with Linear 6 Point
RAMP Generator
MOTION CONTROLLER
with Linear 6 Point
RAMP Generator
TMC5031
Programmable
256 µStep
Sequencer
Protection
& Diagnostics
Protection
& Diagnostics
Programmable
256 µStep
Sequencer
DRIVER 1
DRIVER 2
stallGuard2 coolStep
2x Ref. Switches
DESCRIPTION
The TMC5031 is a low cost motion controller
and driver IC for up to two stepper motors.
It combines two flexible ramp motion
controllers with energy efficient stepper
motor drivers. The drivers support two-phase
stepper motors and offer an industry-leading
feature set, including high-resolution
microstepping, sensorless mechanical load
measurement, load-adaptive power optimi-
zation, and low-resonance chopper operation.
All features are controlled by a standard
SPI™ interface. Integrated protection and
diagnostic features support robust and
reliable operation. High integration, high
energy efficiency and small form factor
enable miniaturized designs with low
external component count for cost-effective
and highly competitive solutions.
Motor 1
Motor 2
TRINAMIC Motion Control GmbH & Co. KG
Hamburg, Germany
Free Datasheet http://www.datasheet4u.com/
1 page  
TMC5031 DATASHEET (Rev. 1.07 / 2013-APR-30)
5
1.2 SPI Control Interface
The SPI interface is a bit-serial interface synchronous to a bus clock. For every bit sent from the bus
master to the bus slave, another bit is sent simultaneously from the slave to the master.
Communication between an SPI master and the TMC5031 slave always consists of sending one 40-bit
command word and receiving one 40-bit status word.
The SPI command rate typically is a few commands per complete motor motion.
1.3 Software
From a software point of view the TMC5031 is a peripheral with a number of control and status
registers. Most of them can either be written only or read only, some of the registers allow both read
and write access. In case read-modify-write access is desired for a write only register, a shadow
register can be realized in master software.
1.4 Moving and Controlling the Motor
1.4.1 Integrated Motion Controller
The integrated 32 bit motion controller automatically drives the motors to target positions, or
accelerates to target velocities. All motion parameters can be changed on the fly with the motion
controller recalculating immediately. A minimum set of configuration data consists of acceleration and
deceleration values and the maximum motion velocity. A start and stop velocity is supported as well
as a second acceleration and deceleration setting. It supports immediate reaction to mechanical
reference switches and to the sensorless stall detection stallGuard2.
Benefits are:
- Flexible ramp programming
- Efficient use of motor torque for acceleration and deceleration allows higher machine throughput
- Immediate reaction to stop and stall conditions
1.5 Precision Driver with Programmable Microstepping Wave
Current into the motor coils is controlled using a cycle-by-cycle chopper mode. Two chopper modes
are available: a traditional constant off-time mode and the new spreadCycle mode. Constant off-time
mode provides higher torque at the highest velocity, while spreadCycle mode offers smoother
operation and greater power efficiency over a wide range of speed and load. The spreadCycle chopper
scheme automatically integrates a fast decay cycle and guarantees smooth zero crossing performance.
Programmable microstep shapes allow optimizing the motor performance.
Benefits are:
- Significantly improved microstepping with low cost motors
- Motor runs smooth and quiet
- Reduced mechanical resonances yields improved torque
1.6 stallGuard2 – Mechanical Load Sensing
stallGuard2 provides an accurate measurement of the load on the motor. It can be used for stall
detection as well as other uses at loads below those which stall the motor, such as coolStep load-
adaptive current reduction. This gives more information on the drive allowing functions like
sensorless homing and diagnostics of the drive mechanics.
www.trinamic.com
Free Datasheet http://www.datasheet4u.com/
5 Page 
TMC5031 DATASHEET (Rev. 1.07 / 2013-APR-30)
11
3.1.1 VCC_IO Requirements
For a reliable start-up it is essential that VCC_IO comes up to a minimum of 1.5V before the TMC5031
leaves the reset condition. The reset condition ends earliest 50µs after the time when VSA exceeds its
undervoltage threshold of typically 4.2V, or when 5VOUT exceeds its undervoltage threshold of
typically 3.5V, whichever comes last.
THERE ARE THREE WAYS TO COME UP TO VCC_IO REQUIREMENTS
- 5VOUT can be used directly to supply VCC_IO. In this case there are no further requirements.
- An external low drop regulator can be used in a 3.3V environment as shown in Figure 3.1.
Note, that most voltage regulators are not suitable for this application because they show a
delayed boot up. The following external regulators are proved by TRINAMIC:
TS3480CX33
LD1117-3.3
This regulator can be used within the full supply voltage range when tied
to the motor supply voltage.
This regulator can be used to supply VCC_IO from 5VOUT, or from a supply
voltage of up to 15V.
- VCC_IO can be supplied externally as shown in Figure 3.2 . In this case it is mandatory to
connect the Schottky diode to the logic supply of the external circuitry. Please note, that the
2K resistor is not to be used with 5V I/O voltage.
22n
+VM
100n
VCP
100n
+VCC_IO
MSS1P3
2K
3.3V, only
VSA
5VOUT
4.7µ
2R2
VCC
1K
VCC_IO
22n 470n
charge pump
5V Voltage
regulator
Figure 3.2 External supply of VCC_IO (showing optional filtering for VCC)
Refer to application note no. 028 Supply Voltage Considerations: VCC_IO in TMC50xx Designs
(www.trinamic.com). Here you will find complete information about connecting VCC_IO.
www.trinamic.com
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 63 Páginas | |
| PDF Descargar | [ Datasheet TMC5031.PDF ] | |
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