L6258EA

L6258EA www.datasheet4u.com 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 1.5A 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 Extended low operating temperature range: -40°C 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 1.5A 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. PowerSO36 Description L6258EA 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. L6258EA 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. Table 1. Device summary Order code E-L6258EA Package PowerSO36 Packing Tube December 2007 Rev 5 1/32 www.st.com 1 Contents L6258EA Contents 1 www.datasheet4...