STK672-220-E

Overview

The STK672-220-E is a hybrid integrated circuit designed as a unipolar, two-phase stepper motor driver. It utilizes Power MOSFET technology and is housed in a 15-pin Single In-line Package (SIP). The device supports a maximum collector-emitter voltage of 45 V and delivers a peak IGBT collector current of 1.7 A. It operates within a supply voltage range of 4.75 V to 5.25 V and features a typical switching frequency of 47 kHz. The component is rated for operation up to +150 °C and measures 46.6 x 8.5 x 25.5 mm.

Feature Summary

• Integrates unipolar output configuration for direct stepper motor control
• Features improved input logic flexibility compared to previous iterations
• Designed for further miniaturization in compact electronic assemblies

Applications

• Office photocopiers
• Printers
• Stepper motor drive systems

Procurement Notes

Verify the specific suffix '-E' against official onsemi documentation to confirm environmental compliance status and lead time requirements. Ensure the SIP-15 footprint matches the target PCB layout. Confirm that the 45 V rating and 1.7 A current capacity align with the intended motor load specifications before finalizing procurement orders.

Selection Notes

Select this component when a unipolar drive topology is required for small stepper motors. The 15-pin SIP package facilitates through-hole mounting. Consider the 45 V voltage limit and 1.7 A current capability to ensure adequate headroom for the application. Verify thermal management needs given the +150 °C junction temperature rating.

Part Context

This part belongs to the STK672 series of hybrid ICs from onsemi. These devices are specialized for driving two-phase stepping motors. The series offers various pin counts and current ratings to suit different form factors and power requirements in office automation equipment.

Replacement Considerations

Check for other STK672 variants with compatible pinouts if current or voltage requirements differ. Verify mechanical dimensions and electrical characteristics against alternative unipolar stepper drivers.