TB67S249FTG active gain control clock controlled bipolar stepper motor driver TB67S249FTG is a clock controlled bipolar stepper motor driver with a built-in active gain control architecture. The TB67S249FTG also has internal current feedback control (ACDS), allowing the driver to control the motor current without using a detection resistor. Using BiCD technology, the rated voltage of TB67S249FTG is 50 V, 4.5 A.
TB67S249FTG features • Built in anti stall architecture (AGC: active gain control) P-VQFN48-0707-0.50-004 Weight 0.14 grams (typical value) • Built in detection resistance free current control architecture (ACDS: advanced current detection system) • Low conduction MOSFET (high edge+low edge=0.33 Ω (typical value)) • Built in microstepping control. (Full, half (a), half (b), quarter, 1/8, 1/16, 1/32 step resolution) • Multiple error detection functions (thermal shutdown (TSD), overcurrent protection (ISD), power on reset (POR), motor load open circuit (OPD)) • Error detection status output (error output) • Internal VCC (5 V) regulator allows the driver to operate on a single power source (VM) Adjustable constant current PWM frequency using external components • Small package with thermal conductive pads on the back (QFN48: 7.0 mm x 7.0 mm) Please note: When using TB67S249FTG, please consider thermal conditions.

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