STK672-430T-E-ON

Overview

The STK672-430T-E-ON is a fully integrated two-phase stepping motor driver manufactured by onsemi. It operates within a supply voltage range of 10 V to 45 V and delivers an output current capability of 2.1 A. The device features a typical switching frequency of 48 kHz and supports a maximum power dissipation of 6.5 W. Designed for through-hole installation, it utilizes a SIP-12 package with dimensions of approximately 29.2 mm in length, 14.4 mm in width, and 4.5 mm in height. The component functions reliably across an operating temperature range from -40 °C to +105 °C.

Feature Summary

• Fully integrated two-phase stepping motor driver architecture
• Supports unipolar output configurations for stepper motors
• Includes built-in thermal protection mechanisms
• Designed for direct interface with microcontroller logic levels

Applications

• General-purpose industrial automation systems
• Office equipment such as printers and scanners
• HVAC control units requiring precise motor positioning
• Medical devices utilizing stepper motor actuation

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging if reel handling is required for assembly processes. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as documentation may vary by production batch. Ensure the SIP-12 through-hole footprint matches the target PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a single-chip solution for two-phase stepper motors is required without external power stages. The 2.1 A output current rating suits moderate-load applications. Consider the SIP-12 package size for mechanical integration. Verify that the 45 V maximum supply voltage aligns with the system power design. Evaluate thermal management requirements given the 6.5 W power dissipation capability.

Part Context

This part belongs to the STK672 series of motor drivers from onsemi, which are designed for driving bipolar or unipolar stepper motors. The series offers integrated power MOSFETs to simplify circuit design. Similar parts in the family include the STK672-110-E and STK672-432BN-E, which share similar functional architectures but may differ in pin counts, current ratings, or package types.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided source material. Engineers should consult official cross-reference tools or contact onsemi technical support for verified alternatives.