PO W ER D R I V E R F O R ST E PP E R M OT O RS
I NT E G R A TE D C I RC U ITS
T MC
26 2
E n e r g y E f f i ci e n t
M i c r o st e p D ri v e r
f o r E xt e r n a l M O S F ET s
for up to 8A
w i t h co o l S t ep ™
M A IN CH A R AC T ER IS T IC S
INFO
The
TMC262
is the first energy efficient high current high preci-
sion microstepping driver IC for bipolar stepper motors. The
unique high resolution sensorless load detection
stallGuard2™
is used to for the world’s first integrated load dependent cur-
rent control feature called
coolStep™.
The ability to read out
the load and detect an overload makes the
TMC262
an optimum
choice for drives where a high reliability is desired at a low
cost. The new patented
spreadCycle
PWM mixed decay chopper
scheme ensures best zero crossing performance as well as high
speed operation. The
TMC262
can be driven with Step & Direc-
tion signals as well as by serial SPI™ interface.
Using the
microPlyer
allows to operate the motor with high-
est 256 µStep smoothness reducing the input frequency to 16
µSteps. A full set of protection and diagnostic features makes
this device very rugged. It directly drives external MOSFETs
for currents of up to 8A. This way it reaches highest energy
efficiency and allows driving of a high motor current without
cooling measures even at high environment temperatures.
PACKAGE
ELECTRICAL
DATA
INTERFACE
• stallGuard2™ sensorless
load detection
• coolStep™ load
dependent current control
• spreadCycle hysteresis
PWM chopper
• 256
µSteps/fullstep (51200 pos/rev.)
• microPlyer 16-to-256
µStep multiplyer
• full
protection and diagnostics
• lowest
power dissipation
• programmable
slope control for low EME
• standby
and shutdown mode
• stall
/ load detection output
• Step
& Direction
• easy-to-use
SPI™ (20bit)
• up
to 8A coil current (peak) with
• just
4 external dual MOSFETS
• 9V
to 60V motor supply
• 3.3V
or 5V operation for digital part
• QFN32
5x5 mm² chip size package
• RoHS
compliant
1 0 mm
OR D E R C OD E
D ES CR IPT IO N
TMC262-LA
Related Products
TMC262-EVAL
coolStep™ driver for external MOSFETs, QFN32
Evaluation board for TMC262 (RS232, USB)
TMC429+TMC26x-EVAL
Evaluation board for TMC429, TMC260, TMC261, TMC262 and TMC424
www.trinamic.com
– for detailed information and datasheets
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