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Q67006-A9077 Datasheet(PDF) 1 Page - Infineon Technologies AG |
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Q67006-A9077 Datasheet(HTML) 1 Page - Infineon Technologies AG |
1 / 25 page Data Sheet 1 2004-03-01 2-Phase Stepper-Motor Driver Bipolar-IC TLE 4728 G • Error-flag for overload, open load, overtemperature • SMD package P-DSO-24-3 Description TLE 4728 G is a bipolar, monolithic IC for driving bipolar stepper motors, DC motors and other inductive loads that operate by constant current. 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 0.7 A per phase at operating voltages up to 16 V. The direction and value of current are programmable for each phase via separate control inputs. A common oscillator generates the timing for the current control and turn-on with phase offset of the two output stages. The two output stages in full-bridge configuration include fast integrated free wheeling diodes and are free of crossover current. The device can be driven directly by a microprocessor in several modes by programming phase direction and current control of each bridge independently. With the two error outputs the TLE 4728 G signals malfunction of the device. Setting the control inputs high resets the error flag and by reactivating the bridges one by one the location of the error can be found. Type Ordering Code Package TLE 4728 G Q67006-A9077 P-DSO-24-9 Overview Features •2 × 0.7 amp. full bridge outputs • Integrated driver, control logic and current control (chopper) • Fast free-wheeling diodes • Max. supply voltage 45 V • Output stages are free of crossover current • Offset-phase turn-ON of output stages • All outputs short-circuit proof |
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