POW E R D R I V E R F O R S T E PP E R M OT O RS
I N T E GR A T E D C I R C U ITS
TMC
2 36
M i c r o s t ep D r i v e r f o r
up to 1.5A
M A IN CH A R AC T ER IS T IC S
INFO
The TMC236 is a smart power microstepping driver for bipolar
stepper motors. It provides an SPI™ interface as well as the
classical analog / digital control. A full set of protection and diag-
nostic features makes this device very rugged. The integrated
low-RDS-ON TrenchFET® power MOSFETs give an extremely high
efficiency and allow driving of a high motor current of up to
1.5A per phase without cooling measures even at high environ-
ment temperatures.
The small footprint and high efficiency make the device a per-
INTERFACE
• full protection and diagnostics
• low power dissipation
• 16 times microstepping via SPI,
64 times using additional shift register,
even more via analog control
• mixed decay for smooth operation
• programmable slope control for low EME
• internal or external chopper clock
• standby and shutdown mode
• easy-to-use SPI™ interface
• classical analog interface
ELECTRICAL
DATA
fect solution for embedded motion control and even for battery
powered designs.
The evaluation can be done with the TMC246, as the only differ-
ence is the additional stallGuard™ feature.
PACKAGE
• up to 1500 mA coil current (peak)
• 7V to 34V motor supply (TMC236A)
• 3.3V or 5V operation for digital part
• standard PQFP-44 package
• RoHS compliant
C/CLK
TMC236
OSC
IN A
IN B
2x
4 bit
DACs
PWM control
&
Gate Driver
Coil A
internal
Driver
Stage
Current
monitoring
Step
Motor
10 mm
SPI
Control
&
Diagnostics
PWM control
&
Gate Driver
Temp / Volt
protection
Coil B
ERROR
3.3 / 5V DC
7..34V DC
internal
Driver
Stage
ORDER CODE
DESCR IPT ION
TMC236A-PA
TMC428A-EVAL
1.5A driver, PQFP-44
Evaluation board for TMC428, TMC246A and TMC249A with stallGuard™
www.trinamic.com
– for detailed information and datasheets
11
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
