L9935

两相步进电机驱动器 TWO-PHASE STEPPER MOTOR DRIVER

The is a two-phase stepper motor driver circuit suited to drive bipolar stepper motors.

The device can be controlled by a serial interface SPI. All protections required to design a well protected system short-circuit, over temperature, cross conduction etc. are integrated.

**Key Features**

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2 x 1.1 A full bridge outputs

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Integrated chopping current regulation

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Minimized power dissipation during flyback

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Output stages with controlled output voltage slopes to reduce electromagnetic radiation

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Short-circuit protection of all outputs

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Error-flag for over load, open load and over temperature pre alarm

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Delayed channel switch on to reduce peak currents

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Max. operating supply voltage 24 V

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Standby consumption typically 40 μA

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Serial interface SPI