L9935013TR

Overview

The L9935013TR is a two-phase stepper motor driver circuit from STMicroelectronics, designed to drive bipolar stepper motors. It features an integrated serial interface (SPI) for control and includes comprehensive protection mechanisms such as short-circuit, over-temperature, and cross-conduction safeguards. The device provides two full bridge outputs capable of delivering up to 1.1 A each, with integrated chopping current regulation to minimize power dissipation during flyback. Output stages utilize controlled voltage slopes to reduce electromagnetic radiation. It supports a maximum operating supply voltage of 24 V and offers low standby consumption typically at 40 μA.

Feature Summary

• Integrated SPI serial interface for digital control
• Dual full bridge outputs with 1.1 A current capability
• Comprehensive on-chip protection against faults
• Optimized output stages for reduced EMI

Applications

• Bipolar stepper motor driving in industrial automation
• Precision positioning systems requiring compact motor control
• Home appliance motor control units
• Office equipment actuator drivers

Procurement Notes

Verify the specific ordering suffix '013TR' against official STMicroelectronics documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints and SPI pin configurations. Confirm that the NRND status does not impact long-term supply availability for production needs.

Selection Notes

Select this component when a dedicated two-phase stepper driver with integrated protections is required. It is suitable for applications needing moderate current output up to 1.1 A per phase. Consider the SPI interface requirement and the 24 V maximum supply voltage limit. Evaluate thermal management needs given the integrated power stages.

Part Context

The L9935 series belongs to STMicroelectronics' portfolio of motor driver ICs designed for efficient and safe operation of stepper motors. These devices integrate power stages and control logic to simplify system design. The L9935 specifically targets applications requiring robust protection and precise current regulation without external complex circuitry.

Replacement Considerations

Check for direct substitutes within the L9935 family or other STMicroelectronics stepper drivers with similar current ratings and SPI interfaces. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution.