STK672-432B-E

Overview

The STK672-432B-E is a thick-film hybrid integrated circuit designed as a unipolar, two-phase stepping motor driver. It features an SIP package with 19 pins and supports through-hole mounting. The device operates within a supply voltage range of 4.75 V to 5.25 V and delivers a maximum IGBT collector current of 2 A. It withstands a maximum collector-emitter voltage of 42 V and functions at a typical switching frequency of 48 kHz. The component is rated for operation between 0°C and +105°C, with physical dimensions of 29.2 mm in length, 14.4 mm in width, and 4.5 mm in height.

Feature Summary

• Integrates PWM current control for precise unipolar stepper motor driving
• Includes built-in motor terminal open detection functionality

Applications

• Office photocopiers
• Printers

Procurement Notes

Verify the specific suffix 'E' against official onsemi documentation to confirm compliance status and exact pinout configuration. Ensure the ordering part number matches the required thermal and electrical specifications for the target application before procurement.

Selection Notes

Select this component for applications requiring a dedicated unipolar stepper driver with integrated protection features. Confirm that the 2 A output current and 42 V voltage ratings align with the motor requirements. Verify that the SIP-19 package fits the available PCB space and thermal management strategy.

Part Context

This part belongs to the STK672 series of thick-film hybrid ICs manufactured by onsemi. These devices are specialized for driving two-phase stepping motors using PWM current control. The series typically integrates power stages and control logic into a single robust package suitable for industrial and office automation environments.

Replacement Considerations

Public confirmed substitute part numbers are not available.