STK672-430AN-E

Overview

The STK672-430AN-E is a two-phase stepper motor driver IC manufactured by onsemi. It integrates power MOSFETs and control logic for unipolar stepper motors. The device operates with an output current capability of 2 A and features a low operating supply current of 5.7 mA. It supports PWM output configuration for precise motor control. The component is housed in a 19-pin Single In-line Package (SIP). It functions within a temperature range from 0°C to +105°C, ensuring reliability in various industrial environments.

Feature Summary

• Integrates power MOSFETs and control circuitry for direct drive of two-phase unipolar stepper motors
• Supports Pulse Width Modulation (PWM) output configuration for enhanced motor performance
• Designed with low operating supply current to minimize power consumption during standby or operation

Applications

• Industrial automation systems requiring precise motion control
• Office equipment such as printers and scanners
• Security systems including access control mechanisms

Procurement Notes

Verify the specific suffix AN-E against official onsemi documentation to confirm pinout and thermal characteristics. Ensure compatibility with unipolar motor wiring configurations. Cross-reference the 19-pin SIP package dimensions with PCB layout requirements. Confirm that the 2 A output current rating meets the load specifications of the intended stepper motor application without exceeding thermal limits.

Selection Notes

Select this component for applications requiring integrated drive solutions for two-phase unipolar stepper motors. Consider the 2 A output current limit when sizing the motor load. Evaluate the 19-pin SIP package for suitable mounting and thermal dissipation strategies. Verify that the operating temperature range of 0°C to +105°C aligns with the environmental conditions of the final assembly.

Part Context

This part belongs to the STK series of motor drivers from onsemi, designed for embedded motion control applications. The STK672 family provides integrated solutions for stepper motor driving, combining power stages with control logic. This specific model targets unipolar configurations, offering a compact alternative to discrete driver designs in space-constrained electronic devices.

Replacement Considerations

The STK672-440BN-E is a related variant within the same product family. Verify functional equivalence and pin compatibility before substitution. Consult official datasheets to confirm differences in electrical parameters or packaging between the AN-E and BN-E suffixes.