TMC401 TRINAMIC | Alldatasheet
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INTEGRATED CIRCUITSINTERFACE CONTROLLER INFO MAIN CHARACTERISTICS www.trinamic.com – for detailed information and datasheets TMC 401 Step / Direction to SPI converter The TMC401 converts step/direction signals into SPI datagrams that can be used to drive a TMC236, TMC239, TMC246 or TMC249 stepper motor driver chip directly. It provides five different microstep resolutions (from 1/32 to 1/2) as well as two full step resolution modes. The stallGuard™ bits of a TMC246 or TMC249 motor driver are output on three pins, in order to allow an easy usage of the stallGuard™ feature. Also the overtemperature pre-warning bit is output on one extra pin (and can be used to shut off the driver when there is an overtemperature pre-warn ing condition). The TMC401 also provides a feature that reduces the motor current to 25% when there have not been any step pulses for at least one second. This features can be enabled or disabled. Mixed Decay can also be enabled or disabled using a dedicated pin. The evaluation board contains the TMC401 and different driver configurations of the TMC249 wit external MOSFETs. step / directon signal to SPI converter allow step-/direction control for TMC236, TMC246, TMC239, TMC249 drivers outputs for stallGuard™ value and driver OTPW flag resolution control from fullstep up to 1/32 microsteps optional power down control mixed decay selectable INTERFACE step-/direction input up to 245kHz SPI output ELECTRICAL DATA 5V supply 5V CMOS / TTL compatible IOs PACKAGE TQFP32 package RoHS compliant ORDER CODE DESCRIPTION TMC401-PI Step / direction to SPI converter in TQFP-32 package TMC32NPx-EVAL Evaluation board for TMC401-PI, TMC249A-LA & TMC32NP-MLP, TMC249A-SA & TMC32NP2-SM8 and TMC249A-LA & TMC34NP-PSO 10 mm TMC401 +5V DC StallGuard and Error Bit Decoder SPI to driver StallGuard Step/Dir Temperatur prewarning µStep resolution Mixed Decay Power Down feature Driver e.g. TMC246 Step Motor serial Driver interface Sequencer Error Valid Disable