SLA7051M

Overview

The SLA7051M is a complete stepper motor driver designed for unipolar motors, integrating low-power CMOS logic with high-current, high-voltage power FET outputs. It features a built-in translator to simplify control interface requirements. The device supports full-step and half-step operation modes. Key electrical specifications include a supply voltage range of 10V to 44V for the load and 3V to 5.5V for logic. It provides an output current capacity of 3A per phase. The component operates within a junction temperature range of -20°C to 150°C and utilizes a 23-ZIP(SLA)LF package.

Feature Summary

• Integrates a built-in translator to reduce external control line complexity
• Combines low-power CMOS logic with high-current power MOSFET outputs
• Includes protection mechanisms such as over-temperature and lock detection

Applications

• Unipolar stepper motor control in industrial automation systems
• Drive circuits for office equipment such as printers and scanners
• General purpose motion control applications requiring simplified interfacing

Procurement Notes

Verify the exact suffix and packaging configuration against the manufacturer's latest documentation before ordering. Confirm that the intended application voltage and current ratings align with the specified limits. Check for any recent product change notices or obsolescence announcements from Sanken Electric. Ensure compatibility with existing PCB footprints for the 23-ZIP package.

Selection Notes

Select this component when driving unipolar stepper motors with minimal microcontroller pins available. It is suitable for applications requiring integrated translation between digital logic and power stages. Consider thermal management requirements due to the high current capability and operating temperature range. Evaluate if the specific voltage ranges meet the system power supply constraints.

Part Context

This part belongs to the SLA705xM series from Sanken Electric, which includes variants like the SLA7050M and SLA7052M. These drivers are designed for general-purpose use in home appliances and industrial equipment. The series combines robust power handling with simplified control logic, targeting cost-sensitive and space-constrained designs.

Replacement Considerations

Direct substitutes within the same family include the SLA7050M and SLA7052M. Verify pinout compatibility and specific current/voltage ratings for these alternatives. Cross-reference with other manufacturers' unipolar stepper drivers only after confirming functional equivalence.