STK672-630AN-E

Overview

The STK672-630AN-E is a thick-film hybrid IC designed as a unipolar, two-phase stepper motor driver with PWM current control. It features a maximum IGBT collector current of 2.2A and a maximum collector-emitter voltage of 42V. The device operates within a supply voltage range of 4.75V to 5.25V and supports a typical switching frequency of 45kHz. Packaged in a 19-pin SIP format measuring 29.2mm x 14.4mm x 4.5mm, it is suitable for through-hole mounting. The component functions reliably across an operating temperature range from 0°C to +105°C.

Feature Summary

• Integrates built-in overcurrent detection and overheat protection functions that automatically cut output current upon fault detection.
• Outputs an active-low fault signal when overcurrent or overheat conditions are identified.
• Includes a power-on reset function to ensure stable initialization.
• Supports Schmitt input characteristics allowing for a 2.5V high-level input threshold.

Applications

• Office photocopiers
• Printers

Procurement Notes

Verify the specific suffix AN-E against official onsemi documentation to confirm pinout compatibility and thermal specifications. Ensure the procurement source provides valid manufacturer traceability. Confirm that the SIP package dimensions match the required PCB footprint. Validate that the component meets the specified 42V and 2.2A electrical limits for the target application environment.

Selection Notes

Select this component for applications requiring a unipolar stepper motor driver with integrated protection mechanisms. The 2.2A current rating suits moderate-load motors. Verify that the 19-pin SIP package fits the mechanical constraints. Ensure the control logic aligns with the active-low fault signal and Schmitt input requirements. Consider thermal management capabilities given the 105°C maximum operating temperature limit.

Part Context

This part belongs to the STK672 series of thick-film hybrid ICs manufactured by onsemi. These devices are specialized drivers for two-phase stepping motors. The series typically integrates power MOSFETs and control circuitry into a single package. This specific model focuses on unipolar drive schemes with PWM current regulation for precise motor control.

Replacement Considerations

Publicly confirmed substitute part numbers for the STK672-630AN-E are not available in the provided documentation. Cross-reference with other STK672 variants only if official datasheets explicitly state pin-to-pin compatibility and identical electrical parameters.