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
Control via SPI with easy-to-use 12 bit protocol or external analog / digital signals
Short circuit, overvoltage and over temperature protection integrated
Status flags for overcurrent, open load, over temperature, temperature pre-warning, undervoltage
Integrated 4 bit DACs allow up to 16 times microstepping via SPI (can be expanded to 64 microsteps)
Any resolution via analog control
Mixed decay feature for smooth motor operation
Slope control user programmable to reduce electromagnetic emissions
Chopper frequency programmable via a single capacitor or external clock
Current control allows cool motor and driver operation
Internal open load detector
7V to 34V motor supply voltage (A-type)
Up to 1500mA output current and more than 800mA at 105°C
