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L6258EP Datasheet(PDF) 1 Page - STMicroelectronics |
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L6258EP Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 32 page  December 2007 Rev 4 1/32 1 L6258EP PWM controlled high current DMOS universal motor driver Features ■ Able to drive both windings of a bipolar stepper motor or two DC motors ■ Output current up to 1.3A each winding ■ Wide voltage range: 12V to 40V ■ Four quadrant current control, ideal for microstepping and DC motor control ■ Precision PWM control ■ No need for recirculation diodes ■ TTL/CMOS compatible inputs ■ Cross conduction protection ■ Thermal shutdow Description L6258EP is a dual full bridge for motor control applications realized in BCD technology, with the capability of driving both windings of a bipolar stepper motor or bidirectionally control two DC motors. L6258EP and a few external components form a complete control and drive circuit. It has high efficiency phase shift chopping that allows a very low current ripple at the lowest current control levels, and makes this device ideal for steppers as well as for DC motors. The power stage is a dual DMOS full bridge capable of sustaining up to 40V, and includes the diodes for current recirculation. The output current capability is 1.3A per winding in continuous mode, with peak start-up current up to 2A. A thermal protection circuitry disables the outputs if the chip temperature exceeds the safe limits. PowerSSO36 Table 1. Device summary Order code Package Packing E-L6258EP PowerSSO36 Tube www.st.com |
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