L6258EA

PWM控制大电流DMOS通用电机驱动器 PWM controlled high current DMOS universal motor driver

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.

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.

**Key Features**

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EXTENDED LOW OPERATING TEMPERATURE RANGE: -40˚C

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THERMAL SHUTDOW

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TTL/CMOS COMPATIBLE INPUTS

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NO NEED FOR RECIRCULATION DIODES

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ABLE TO DRIVE BOTH WINDINGS OF A BIPOLAR STEPPER MOTOR OR TWO DC MOTORS

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WIDE VOLTAGE RANGE: 12V TO 40V

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OUTPUT CURRENT UP TO 1.5A EACH WINDING

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PRECISION PWM CONTROL

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CROSS CONDUCTION PROTECTION

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FOUR QUADRANT CURRENT CONTROL, IDEAL FOR MICROSTEPPING AND DC MOTOR CONTROL