TMC429-PI24

TRINAMIC  TMC429-PI24  芯片, 步进电机控制器, SOP24

The is a miniaturized Stepper Motor Controller with an industry leading feature set. It controls up to three motors via SPI or step/direction interface. The SPI interface provides a programmable 6-bit microstep table 64µsteps/full step for best step accuracy with 2-phase stepper motors. Based on target positions and velocities - which can be altered on the fly - it performs all real time critical tasks autonomously. The TMC429 offers high level control functions for robust and reliable operation. Two separate 4 wire serial peripheral interfaces allow for communication with the microcontroller and with up to three daisy chained stepper motor drivers. Together with a microcontroller the TMC429 forms a complete motion control system. High integration and small form factor allow for miniaturized designs for highly competitive solutions.

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Controls up to three stepper motors

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Serial 4-wire interface for µC with easy-to-use protocol

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Interface for SPI™ motor drivers with data rates up to 1Mbps

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Step/direction interface

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Internal position counters 24-bit wide

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Microstep frequency up to 1MHz

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Read-out option for all motion parameters

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Programmable 6 bit microstep table, up to 64 entries for a quarter sine wave period

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Ramp generators for autonomous positioning/speed control

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On-the-fly change of target motion parameters

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Power boost automatic acceleration dependent current control

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Up to 32MHz can use CPU clock Clock frequency

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1.25mA at 4MHz Typical low power operation