TRINAMIC 公司的TMC389是三相步进马达驱动器,集成了低谐振的三相斩波器用于静态马达工作,能直接驱动三个外接N/P沟双MOSFET,马达电流高达8A和60V,多达171个微步距,接纳{方案}自动负载调解马达电流的coolStep™s20,节能高达75%,主要用在细密三相步进马达驱动,医疗和光学应用,呆板人和舞台照明.本京电港论坛文章先容了TMC389主要特点和优势,方框架图和应用电路原理图纸,和高压大电流功率级电路原理图纸以及评估板TMC389CEVAL主要特点,应用框架图,电路原理图纸和PCB线路板元件结构图. The TMC389 is an energy efficient three phase stepper motor driver for high resolution microstepping applications. It integrates a low resonance three phase chopper for quiet motor operation. Its step and direction interface allows simple use. An SPI™ management interface allows for parameterization and diagnostics. The TMC389 directly drives 3 external N/P channel dual MOSFETs for motor currents up to 8A and up to 60V. Protection and diagnostic features further reduce system cost and increase reliability. TMC389产物亮点: Up to 171 microsteps (256 sine wave steps) using step/direction interface or 20 Bit SPI™interface High precision sensorless motor load measurement stallGuard2 Energy efficiency and coolness by automatic load dependant motor current regulation coolStep™s20 : Save up to 75% of energy! Internal microstep extrapolation allows 256 wave step smoothness with low frequency step input Dual edge step option allows half step frequency requirement, e.g. for opto-couplers Up to 8A Motor current using external N&P channel MOSFET pairs Synchronous rectification reduces transistor heating 9V to 60V operating voltage (peak) 3.3V or 5V interface QFN32 package for extremely small solution with superior thermal performance EMV optimized current controlled gate drivers C up to 45mA gate current Overcurrent, short to GND and overtemperature protection and diagnostics integrated TMC389应用: Precision three phase stepper motor drives Stage lighting Medical applications Optical applications Robotics Motor type 3 phase Stepper TMC389评估板 The TMC389 evaluation board features a TMC389 with external power MOSFETs plus a microcontroller, which allows interfacing to a PC for visualization and control of all parameters. The motor can be operated via the step and direction interface, using either an external source, or using the integrated microcontroller as a step pulse generator. The TMC389-EVAL allows you to explore all functions of the TMC389. The evaluation board comes with a PC software which gives you access to every function of the driver. It comes along with a Step&Direction interface, a RS232 and a USB port. The TMC389-Eval is a complete "plug and play" solution, additionally only a motor, a PC and a power supply are required! TMC389评估板亮点: Evaluate all features of the TMC389 Use stallGuard2™ with your motor Use coolStep™ with your motor Control all parameters from a PC Motor current can be set to up 6A depending on sense resistor selection. Supply voltage up to 40V (MOSFETs can be exchanged against 60V 2A types) Motor type 3 phase Stepper TMC389-EVAL contains TMC389-Evaluation Board USB cable for connection to PC software for Windows (downloadable) documentation, board and circuit description and all datasheets (downloadable)
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