MC33232PG

Overview

The MC33232PG is a Power Factor Correction (PFC) controller from onsemi, designed for critical conduction mode (CRM) applications. It operates within a supply voltage range of 7V to 36V and supports an operating temperature range from -40°C to 105°C. The device utilizes a PDIP package with 8 pins and features a maximum source current of 10μA and a maximum reverse current of 500,000μA. Its start-up supply current is specified at 0.25mA, ensuring efficient power management during initialization phases.

Feature Summary

• Supports critical conduction mode (CRM) operation for enhanced efficiency in PFC applications
• Integrated zero-power detection capability for optimized light-load performance
• Robust input voltage handling with a wide supply range up to 36V

Applications

• Power factor correction circuits in AC-DC converters
• Industrial power supply systems requiring high reliability
• Consumer electronics power adapters

Procurement Notes

Verify the specific package type and pin configuration against your PCB footprint requirements before ordering. Confirm that the operating temperature range meets your environmental specifications. Ensure compatibility with your control loop design parameters. Check for any recent product change notices or obsolescence announcements from the manufacturer. Validate that the component meets all necessary regulatory standards for your target market.

Selection Notes

Consider the MC33232PG for designs requiring CRM PFC control with through-hole mounting capabilities. Evaluate its 36V maximum supply voltage against your system's peak line conditions. Assess the thermal performance within the -40°C to 105°C range for your enclosure constraints. Compare its zero-power detection feature against alternative controllers for light-load efficiency requirements.

Part Context

This component belongs to the MC332 series of PFC controllers from onsemi. It is distinct from surface-mount variants like the MC33232DG, offering a PDIP package suitable for prototyping or specific mechanical constraints. The series focuses on cost-effective, reliable power factor correction solutions for general-purpose applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.