TMC401
OBSOLETE PRODUCT
Overview
- Up to 32 times microstepping
- Two different full step resolution modes
- Output of StallGuard™ values for sensorless motor stall detection
- Overtemperature pre-warning
- Mixed Decay can be enabled or disabled for best motor performance
- Optional intelligent current management at step pulse pauses
- +5V power supply
- TTL levels on all in- and outputs
- RoHS compliant
- 32 pin TQFP package
TMC-401 is obsolete and not recommended for new designs.
The TMC-401 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-warning 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.
Documentation
Data Sheet 1
This is the most up-to-date revision of the Data Sheet.
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