The TLE4729G is a 2-phase monolithic Stepper Motor Driver Bipolar-IC for driving DC motors and other inductive loads that operate by constant current. It is fully pin and function compatible except the current programming is inverse to the TLE4728G with an additional inhibit feature. The control logic and power output stages for two bipolar windings are integrated on a single chip which permits switched current control of motors with 0.7A per phase at operating voltages up to 16V. The direction and value of current are programmable for each phase via separate control inputs. In the case of low at all four current program inputs the device is switched to inhibit mode automatically. A common oscillator generates the timing for the current control and turn-ON with phase offset of the two output stages. The device can be driven directly by a microprocessor in several modes by programming phase direction and current control of each bridge independently.
Integrated driver, control logic and current control (chopper)
Very low current consumption in inhibit mode
Fast free-wheeling diodes
Output stages are free of crossover current
Offset-phase turn-ON of output stages
All outputs short-circuit proof
Error-flag for overload, open load, over-temperature
(EN)
