TMC236B-PA
数据手册.pdf电机驱动器/控制器, 步进电机, 2输出, 3.3 V至5 V电源, 34 V/1.1 A输出, PQFP-44
The TMC236B is a dual full bridge driver IC for bipolar stepper motor control applications. It is realized in a HVCMOS technology combined with Low-RDS-ON high efficiency MOSFETs pat. pend.. It allows driving a coil current of up to 1500mA even at high environment temperatures. Its low current consumption and high efficiency together with the miniature package make it a perfect solution for embedded motion control and for battery powered devices. The low power dissipation makes the TMC236 an optimum choice for drives, where a high reliability is desired. Internal DACs allow microstepping as well as smart current control. The device can be controlled by a serial interface SPI™i or by analog / digital input signals. Short circuit, temperature, undervoltage and overvoltage protection are integrated.
TMC236A-PA
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- Control via SPI with easy-to-use 12 bit protocol or external analog / digital signals
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- Short circuit, overvoltage and over temperature protection integrated
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- Status flags for overcurrent, open load, over temperature, temperature pre-warning, undervoltage
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- Integrated 4 bit DACs allow up to 16 times microstepping via SPI can be expanded to 64 microsteps
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- Any resolution via analog control
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- Mixed decay feature for smooth motor operation
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- Slope control user programmable to reduce electromagnetic emissions
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- Chopper frequency programmable via a single capacitor or external clock
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- Current control allows cool motor and driver operation
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- Internal open load detector
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- 7V to 34V motor supply voltage A-type
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- Up to 1500mA output current and more than 800mA at 105°C
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- 3.3V or 5V operation for digital part
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- Low power dissipation via low RDS-ON power stage
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- Standby and shutdown mode available