SLA7073MS

Overview

The SLA7073MS is a fully integrated unipolar stepper motor driver manufactured by Sanken Electric USA Inc. It combines control logic and power stages in a single unit, supporting 2-phase or 1-2 phase excitation with built-in sequencing. The device utilizes Power MOSFET technology and features four low-side outputs. It operates on a parallel interface with a supply voltage range of 3V to 5.5V and supports load voltages from 10V to 44V. The component delivers an output current of 3A and functions within a junction temperature range of -20°C to 150°C. It is housed in a 23-ZIP(SLA)LF 2151 package.

Feature Summary

• Fully integrated design combining control logic and power MOSFET stages
• Built-in sequencer supporting 2-phase and 1-2 phase excitation modes
• Four low-side output configuration for unipolar stepper motors

Applications

• Unipolar stepper motor control systems
• General purpose motion control applications
• Integrated electromechanical actuator drivers

Procurement Notes

Verify the specific suffix LF2151 when ordering, as it denotes the exact variant. Confirm RoHS compliance status and check for active production status, as this part may be obsolete. Ensure the 23-ZIP(SLA)LF 2151 package type matches the target PCB footprint requirements before procurement.

Selection Notes

Select this component for applications requiring a compact solution for unipolar stepper motors without external discrete drivers. The integrated sequencer simplifies interface requirements by accepting parallel inputs. Verify that the required load voltage does not exceed 44V and that the thermal environment remains within the specified junction temperature limits for reliable operation.

Part Context

This component belongs to the SLA707x series of motor driver ICs produced by Sanken Electric. These devices are designed specifically for driving unipolar stepper motors, offering a complete drive solution in a single package. The series typically integrates protection features and timing circuits to simplify system design for industrial and consumer automation tasks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.