TRINAMIC TMC246A-PA

POWER DR I V E R F O R S T E P P E R M O T O R S
I N T E G R A T E D C I R C U ITS
TMC 2 46
Micr oste p Dr iver for
up to 1.5A
wi th s tall Guar d™
M A IN CH A R AC T ER IS T IC S
INFO
The TMC246 is a smart power microstepping driver for bipolar
• sensorless stall detection StallGuard™
stepper motors. The integrated unique sensorless stall detec-
• full protection and diagnostics
tion stallGuard™ makes it a good choice for applications where
• low power dissipation
a reference point is needed, but where a switch cannot be
• 16 times microstepping via SPI,
64 times using additional shift register,
even more via analog control
used. The ability to predict an overload makes the TMC246 an
optimum choice for drives, where a high reliability is desired.
• mixed decay for smooth operation
It provides an SPI™ interface as well as the classical analog /
• programmable slope control for low EME
digital control. A full set of protection and diagnostic features
• internal or external chopper clock
makes this device very rugged. The integrated low-RDS-ON
• standby and shutdown mode
TrenchFET® power MOSFETs give an extremely high efficiency
INTERFACE
and allow driving of a high motor current of up to 1.5A per
• classical analog interface
phase without cooling measures even at high environment
ELECTRICAL
DATA
temperatures.
• 3.3V or 5V operation for digital part
fect solution for embedded motion control and even for battery
PACKAGE
powered designs.
IN A
IN B
• up to 1500 mA coil current (peak)
• 7V to 34V motor supply (TMC246A)
The small footprint and high efficiency make the device a per-
C/CLK
• easy-to-use SPI™ interface
• standard PQFP-44 package
• RoHS compliant
TMC246
OSC
2x
4 bit
DACs
SPI
PWM control
&
Gate Driver
Control
&
Diagnostics
&
Stallguard
ERROR
3.3 / 5V DC
7..34V DC
internal
Driver
Stage
Coil A
10 mm
Current
monitoring
PWM control
&
Gate Driver
Temp / Volt
protection
Coil B
Step
Motor
internal
Driver
Stage
OR DE R C O DE
D E S C RI P T I ON
TMC246A-PA
1.5A driver with stallGuard™, PQFP-44
TMC428A-EVAL
Evaluation board for TMC428, TMC246A and TMC249A with stallGuard™
www.trinamic.com – for detailed information and datasheets
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