L6258EX

PWM控 - 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.

L6258EX 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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TTL/CMOS compatible inputs

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No need for recirculation diodes

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Thermal shutdow

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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