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PDF TMC2100-LA Data sheet ( Hoja de datos )
| Número de pieza | TMC2100-LA | |
| Descripción | Standalone intelligent Step/Direction driver | |
| Fabricantes | TRINAMIC | |
| Logotipo |  |
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POWER DRIVER FOR STEPPER MOTORS
INTEGRATED CIRCUITS
TMC2100-LA DATASHEET
Standalone intelligent Step/Direction driver for two-phase bipolar stepper motor.
stealthChop™ for quiet movement. Integrated MOSFETs for up to 1.7 A motor current per coil.
APPLICATIONS
Textile, Sewing Machines
Office Automation
Consumer, Home
CCTV, Security
ATM, Cash recycler
POS
Printers & Scanners
DESCRIPTION
FEATURES AND BENEFITS
2-phase stepper motors
Standalone Driver
Drive Capability up to 1.2 A coil current (1.7 A peak)
Step/Dir Interface with microstep interpolation
microPlyer™
Voltage Range 4.75… 46 V DC
Highest Resolution 256 microsteps per full step
stealthChop™ for extremely quiet operation and smooth
motion
spreadCycle™ highly dynamic motor control chopper
Integrated Current Sense Option
Standstill Current Reduction
Full Protection & Diagnostics (two outputs)
Small Size 5x6mm2 QFN36 package
BLOCK DIAGRAM
The TMC2100 is TRINAMICs most
autonomous driver IC. This small and
intelligent standalone driver for two phase
stepper motors offers market-leading
features while being configured by seven
pins only. CPU interaction is not required.
Drive the motor via Step and Direction
signals.
TRINAMICs
sophisticated
stealthChop chopper ensures noiseless
operation combined with efficiency and
best motor torque. Integrated power
MOSFETs handle motor currents up to 1.2 A
RMS continuously or 2.5 A short time peak
current per coil. For saving energy, the
TMC2100 provides standstill current
reduction. Protection and diagnostic
features support robust and reliable
operation. The TMC2100 enables
miniaturized designs with low external
component count for cost-effective and
highly competitive solutions.
Configuration via 7 pins
IREF optional current scaling
Power
Supply
Step/Dir
CLK
+5V Regulator
Charge Pump
Step Multiplyer
Standstill Current
Reduction
CLK Oscillator /
Selector
Configuration
Interface with
TRISTATE Detection
256 µStep
Sequencer
Protection
& Diagnostics
DAC Reference
spreadCycle
stealthChop
TMC2100
DRIVER
Motor
ERROR / INDEX
TRINAMIC Motion Control GmbH & Co. KG
Hamburg, Germany
1 page  
TMC2100 DATASHEET (Rev. 1.04 / 2016-APR-22)
5
1.1 Software
Usually, the TMC2100 is configured to a fixed configuration using the related hardware pins. Status
bits for error detection can be read out using ERROR and INDEX. The TMC2100 is a stepper motor
driver chip that can be driven software based with only little effort. It does not need a master CPU or
a motion controller IC, but step and direction signals have to be provided to drive a motor.
1.2 STEP/DIR Interface
The motor is controlled by a step and direction input. Active edges on the STEP input are rising ones.
On each active edge, the state sampled from the DIR input determines whether to step forward or
back. Each step can be a fullstep or a microstep, in which there are 2, 4, 8, 16, 32, 64, 128, or 256
microsteps per fullstep. During microstepping, a step impulse with a low state on DIR increases the
microstep counter and a high decreases the counter by an amount controlled by the microstep
resolution. An internal table translates the counter value into the sine and cosine values which
control the motor current for microstepping.
1.3 Standstill Current Reduction
The automatic standstill current reduction allows to automatically reduce the motor current by nearly
two-thirds to save energy in standstill. This is possible in many applications, as normally less holding
torque is required. In case the standstill current option has been enabled, the motor current becomes
softly ramped down from 100% to 34% in 44M clock cycles (3 to 4 seconds) if no step pulse has been
issued for more than 3M clock cycles (standby delay time). The soft current ramp avoids a jerk on the
motor.
STEP
CURRENT
I_RUN
I_HOLD = 34% * I_RUN
RMS current with CFG6_ENN = open
Figure 1.2 Standstill current reduction
Standby
Standby
delay time ramp time
t
1.4 Diagnostics and Protection
The TMC2100 offers safeguards to detect and protect against shorted outputs, overtemperature, and
undervoltage conditions for enhancing safety and recovery from equipment malfunctions.
www.trinamic.com
5 Page 
TMC2100 DATASHEET (Rev. 1.04 / 2016-APR-22)
11
4 Suggestions for Layout
The sample circuits show the connection of external components in different operation and supply
modes.
4.1 Basic Hints for Power Supply
Use low ESR capacitors for filtering the power supply which are capable to cope with the current
ripple. The current ripple often depends on the power supply and cable length. The VCC_IO voltage
can be supplied from 5VOUT, or from an external source, e.g. a low drop 3.3 V regulator. In order to
minimize linear voltage regulator power dissipation of the internal 5 V voltage regulator in
applications where VM is high, a different (lower) supply voltage can be used for VSA, if available. For
example, many applications provide a 12 V supply in addition to a higher supply voltage, like 24 V or
36 V. Using the 12 V supply for VSA will reduce the power dissipation of the internal 5V regulator to
about 37% resp. 23% of the dissipation caused by supply with the full motor voltage.
Basic Layout Hints
Place sense resistors and all filter capacitors as close as possible to the related IC pins. Use a solid
common GND for all GND connections, also for sense resistor GND. Connect 5VOUT filtering capacitor
directly to 5VOUT and GNDA pin. See layout hints for more details. Low ESR electrolytic capacitors are
recommended for VS filtering.
Attention
In case VSA is supplied by a different voltage source, make sure that VSA does not exceed VS by
more than one diode drop upon power up or power down.
4.2 Reduced Number of Components
Optional use lower
voltage down to 6V
+VM
100n
VSA
5VOUT
4.7µ
5V Voltage
regulator
VCC
Figure 4.1 Reduced number of filtering components
The standard application circuit uses RC filtering to de-couple the output of the internal linear
regulator from high frequency ripple caused by digital circuitry supplied by the VCC input. For cost
sensitive applications, the RC-filtering on VCC can be eliminated. This leads to more noise on 5VOUT
caused by operation of the charge pump and the internal digital circuitry. There is a slight impact on
microstep vibration and chopper noise performance.
4.3 Internal Current Sensing
For cost critical or space limited applications, it may be desired to eliminate the sense resistors. The
TMC2100 allows using the resistance of the internal MOSFETs as a sense resistor. Further, this slightly
reduces power dissipation, because the effective resistance of the driver bridge is reduced. In this
application, a reference current set by a tiny external resistor programs the output current. For
calculation of the reference resistor, refer chapter 9.
www.trinamic.com
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TMC2100-LA.PDF ] | |
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