STK672-740B-E

Overview

The STK672-740B-E is a hybrid integrated circuit designed for unipolar, two-phase stepping motor applications. It incorporates PWM current control technology to regulate motor performance. The device features built-in motor terminal open detection capabilities for system monitoring. It operates with a supply voltage range of 4.75V to 5.25V and supports an output current of up to 3.3A. The component utilizes a 19-SIP package configuration.

Feature Summary

• Unipolar two-phase stepping motor driver architecture
• Integrated PWM current control mechanism
• Built-in motor terminal open detection functionality

Applications

• Precision control systems requiring unipolar stepper motors
• Industrial automation equipment utilizing two-phase motors
• General purpose motor driving circuits

Procurement Notes

Verify the specific manufacturer source, as Sanyo's semiconductor assets have been acquired by onsemi. Confirm the package type matches the required 19-SIP form factor. Ensure the application supports unipolar configurations and that the 3.3A output rating meets the load requirements. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a dedicated hybrid IC solution for unipolar two-phase motors is required. The integrated PWM control simplifies design compared to discrete solutions. Verify that the 4.75V to 5.25V supply range aligns with the system power rails. Consider the thermal dissipation capabilities inherent to the SIP package for the intended operating environment.

Part Context

This part belongs to the STK series of thick-film hybrid integrated circuits originally manufactured by Sanyo Denki. These components are specialized for motor control applications, combining logic and power stages in a single package. The series is known for providing robust driving capabilities for stepper motors in industrial settings.

Replacement Considerations

Sanyo's semiconductor business was acquired by onsemi. Verify if onsemi offers direct equivalents or updated revisions of this hybrid IC family. Cross-reference pinouts and electrical characteristics carefully when considering alternative suppliers.