TMC249
Key Features
- The TMC249 / TMC249A (1) is a dual full bridge driver IC for bipolar stepper motor control applications
- The TMC249 is realized in a HVCMOS technology and directly drives eight external LowRDS-ON high efficiency MOSFETs
- It supports more than 6000mA coil current
- The low power dissipation makes the TMC249 an optimum choice for drives, where a high reliability is desired
- With additional drivers, motor current and voltage can be increased
- The integrated unique sensorless stall detection (pat
- pend.) 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 TMC249 an optimum choice for drives, where a high reliability is desired
- Internal DACs allow microstepping as well i as smart current control
- The device can be controlled by a serial interface (SPI™ ) or by analog / digital input signals
