STK672-210-E

Overview

The STK672-210-E is a two-phase stepping motor driver hybrid IC (HIC) manufactured by onsemi. It features further miniaturization and improved input logic flexibility compared to previous generations. The device supports unipolar stepper motors with parallel interface control. Key electrical specifications include a maximum collector-emitter voltage of 45 V, a maximum IGBT collector current of 1.7 A, and a typical switching frequency of 47 kHz. It operates within a supply voltage range of 4.75 V to 5.25 V and has a maximum junction temperature rating of +150 °C.

Feature Summary

• Two-phase stepping motor driver hybrid IC architecture
• Enhanced input logic flexibility for simplified control integration
• Miniaturized physical design for space-constrained applications

Applications

• Unipolar stepper motor control systems
• Parallel interface driven automation equipment
• Compact electromechanical devices requiring integrated motor driving

Procurement Notes

Verify component status carefully as the STK672-210-E is listed as obsolete and no longer manufactured by onsemi. Confirm availability through authorized distributors or secondary market channels if procurement is required. Ensure that any substitute components meet the original electrical and mechanical specifications, including the 45 V voltage rating and SIP package dimensions, to maintain system compatibility.

Selection Notes

Select this component only if legacy system compatibility with the specific 4.75 V to 5.25 V operating voltage and 47 kHz switching frequency is mandatory. Consider the unipolar output configuration and parallel interface requirements when designing the control circuitry. Evaluate the thermal performance at the +150 °C junction temperature limit against the application's ambient conditions to ensure reliable operation within the specified envelope.

Part Context

The STK672-210-E belongs to onsemi’s family of hybrid ICs designed for motor control applications. It represents an evolution in miniaturized driver solutions, offering improved logic flexibility over earlier models. This part integrates power stages and control logic into a single SIP package, simplifying the design process for unipolar stepper motor drives while reducing the overall footprint required for implementation.

Replacement Considerations

Similar available substitutes exist for this obsolete component. Verify that replacement parts match the 45 V max voltage, 1.7 A current capability, and SIP-22 pinout configuration to ensure direct interchangeability without redesigning the host circuit board.