General Description
The TMC5240 is a smart high-performance stepper motor
controller and driver IC with serial communication inter-
faces (SPI, UART) and extensive diagnosis capabilities. It
combines a flexible, jerk-optimized ramp generator for au-
tomatic target positioning with industries’ most advanced
stepper motor driver based on a 256 microsteps built-in in-
dexer and fully integrated 36V, 3.0A
MAX
H-Bridges plus
non-dissipative Integrated Current Sensing (ICS).
ADI-Trinamic's sophisticated StealthChop2 chopper en-
sures absolutely noiseless operation combined with maxi-
mum efficiency and best motor torque.
High integration, high energy efficiency, and a small form
factor enable miniaturized and scalable systems for cost-
effective solutions. The complete solution reduces the
learning curve to a minimum while giving best-in-class
performance.
The H-Bridge FETs have very low impedance resulting in
high driving efficiency and minimal heat generated. The
typical total Ron (high side + low side) is 0.23Ω.
The maximum output current per H-Bridge is I
MAX
=
5.0A
MAX
limited by the Overcurrent Protection (OCP).
The maximum RMS current per H-Bridge is I
RMS
=
2.1A
RMS
at room temperature assuming a 4-layers PCB.
Since this current is limited by thermal considerations the
actual maximum RMS current would depend on the ther-
mal characteristic of the application (PCB ground planes,
heatsinks, ventilation etc).
The maximum full-scale current per H-Bridge is I
FS
= 3.0A
and can be set by an external resistor connected to IREF.
This current is defined as the maximum current setting of
the embedded current drive regulation circuit.
The non-dissipative ICS eliminates the bulky external
power resistors resulting in a dramatic space and power
saving compared with mainstream applications based on
external sense resistors while providing the same overall
accuracy.
TMC5240 features abundant diagnostics and protections
such as short protection / OCP, thermal shutdown, and
undervoltage lockout.
During thermal shutdown and under voltage lockout
events the driver is disabled.
Furthermore, TMC5240 provides functions to measure the
driver temperature, estimate the motor temperature, and
measure one external analog input.
The TMC5240 is available in a small TQFN32 5mm x 5mm
package and a thermally optimized TSSOP38 9.7mm x
4.4mm with an exposed pad.
Applications
● Textile, Sewing Machines, Knitting Machines
● Lab and Factory Automation
● 3D Printers, ID Printers/Card Printers
● Liquid Handling, Medical Applications
● Office Automation and Paper Handling
● POS, Massage Chairs
● ATM, Cash Recycler, Bill Validators, Cash Machines
● CCTV, Security
● Pumps and Valve Control
● Heliostat and Antenna Positioning
Benefits and Features
● Voltage Range 4.5… 36V DC
● Low Rdson (HS + LS): 230 mΩ typical (TA = 25°C)
● Current ratings per H-bridge (typical at 25°C):
• IMAX = 5.0A (bridge peak current)
• IRMS = 2.1A
RMS
(3A sine wave peak)
● Fully integrated lossless current sensing (ICS)
● EightPoint motion controller for minimum jerk
● SPI & Single Wire UART
● Encoder interface and 2x reference switch Input
● Highest resolution 256 microsteps per full step
● Flexible wave table & phase shift to match motor
● StealthChop2 silent motor operation
● SpreadCycle highly dynamic motor control chopper
● Jerk-free combination of StealthChop2 and
SpreadCycle
● StallGuard2 & StallGuard4 sensorless motor load
detection
● CoolStep current control for energy savings up to 75%
● Passive braking and freewheeling mode
● Motor phase temperature estimation
● Chip temperature measurement
● General purpose analog input
● Full protection & diagnostics
● Overvoltage protection output
● Compact 5mm x 5mm TQFN32 package or 9.7mm x
4.4mm TSSOP38
Click here to ask an associate for production status of specific part numbers.
TMC5240 36V 2Arms Smart Integrated Stepper Driver and Controller
Ordering Information appears at end of data sheet.
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