The TMC246 is a dual full bridge driver IC for bipolar stepper motor control applications. The integrated unique sensorless stall detection (pat.fi.) StallGuard™ makes it a good choice for applications, where a reference point is needed, but where a switch is not desired. Its ability to predict an overload makes the TMC246 an optimum choice for drives, where a high reliability is desired.
The TMC246 is realized in a HVCMOS technology combined with Low-RDS-ON high efficiency MOSFETs (pat.fi.). It gives the choice to operate at high temperature or at high current of up to 1500mA. 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.
Internal DACs allow microstepping as well as smart current control. The device can be controlled by a serial interface (SPI™) or by analog / digital input signals. Short circuit, temperature, undervoltage and overvoltage protection are integrated.