MC33232P

Overview

The MC33232P is a Power Factor Correction (PFC) controller from onsemi's SMARTMOS® series, designed for Critical Conduction Mode (CRM) operation. It operates within a supply voltage range of 12V to 25V and features a low start-up current of 50 µA. The device is housed in an 8-PDIP package with a width of 7.62mm and supports surface mount or through-hole installation depending on the variant, though this specific part is Through-Hole. It functions across an industrial temperature range of -20°C to 85°C.

Feature Summary

• Supports Critical Conduction Mode (CRM) PFC applications
• Low start-up current consumption of 50 µA
• Operates within a 12V to 25V supply voltage range

Applications

• Power factor correction in AC-DC power supplies
• Critical conduction mode boost converters
• General purpose power management systems

Procurement Notes

Verify component status as the MC33232DG variant is listed as obsolete. Confirm availability of the PDIP package version separately. Check for direct substitutes like the L6562D if production continuity is required. Ensure the specific order matches the required package type and verify RoHS compliance documentation.

Selection Notes

Select this component for CRM PFC designs requiring through-hole mounting. Compare against the DG variant for PCB space constraints. Consider the operating temperature range limits for high-heat environments. Evaluate the 12V-25V supply requirement against system power rails.

Part Context

Part of the onsemi SMARTMOS® family, which integrates MOSFET technology with control logic. The MC33232 series focuses on efficient power factor correction. This specific model uses an 8-pin DIP package, distinguishing it from the SOIC versions available in the same product line.

Replacement Considerations

L6562D by STMicroelectronics is a confirmed direct substitute.