STK672-612B-E

Overview

The STK672-612B-E is a hybrid integrated circuit designed for unipolar, two-phase stepping motor applications. It incorporates PWM current control to manage motor performance efficiently. The device supports a maximum collector-emitter voltage of 42 V and handles up to 2 A of IGBT collector current. Operating within a supply voltage range of 4.75 V to 5.25 V, it functions at a typical switching frequency of 48 kHz. The component is housed in a 19-pin SIP package with dimensions of 29.2 x 14.4 x 4.5 mm and operates between 0°C and +105°C.

Feature Summary

• Built-in opened motor pin detection capability
• PWM current control integration
• Unipolar two-phase stepping motor driver architecture

Applications

• Stepping motor drive systems
• Industrial automation controllers
• Precision positioning equipment

Procurement Notes

Verify the manufacturing status before procurement as this product may be discontinued or no longer manufactured. Confirm availability through authorized distributors or alternative suppliers if direct stock is unavailable. Ensure the specific suffix matches the required configuration. Check for valid replacement options if the part is obsolete. Validate compliance requirements against current project specifications.

Selection Notes

Select this component for applications requiring a dedicated unipolar stepper motor driver with integrated protection features. The built-in opened motor pin detection adds reliability by identifying connection faults. Consider the thermal characteristics and SIP packaging constraints for board layout. Verify that the 42 V voltage rating and 2 A current capacity align with the motor's electrical requirements.

Part Context

The STK672 series consists of hybrid ICs developed for stepping motor control. This model represents a specific variant within the family, focusing on unipolar configurations. The series is known for integrating power stages and control logic into a single package, simplifying design complexity for motor drive applications.

Replacement Considerations

Rochester Electronics lists this product as no longer manufactured. Consult official documentation for confirmed substitute part numbers. Evaluate equivalent drivers from other manufacturers if direct replacements are not available.