MC33262PG

Overview

The MC33262PG is an active power factor controller from the MC332 series, designed for pre-converters in electronic ballasts and offline power supplies. It operates within a supply voltage range of 7V to 36V and supports through-hole installation in an 8-pin PDIP package. The device functions across a temperature range of -40°C to 105°C. Key electrical parameters include a start-up supply current of 0.25mA, a maximum source current of 10μA, and a maximum reverse current of 500,000μA. It features zero-power detection and complies with standards such as JESD78 and JEDEC JESD22-C101D.

Feature Summary

• Integrates a single-quadrant multiplier for linear control of input current to minimize harmonic distortion.
• Employs zero-current detection to enable critical conduction mode operation, reducing output rectifier stress.
• Includes comprehensive protection mechanisms such as over-voltage comparison, under-voltage lockout, and per-cycle current limiting.

Applications

• Pre-converters for electronic ballasts
• Offline power converters
• Active power factor correction circuits

Procurement Notes

Verify the specific package variant (PDIP) and operating temperature grade against design requirements. Confirm that the component meets necessary regulatory standards for the target application region. Ensure compatibility with the intended switching frequency and control loop compensation network before finalizing procurement.

Selection Notes

Select this component for applications requiring high linearity and low harmonic content in AC-DC conversion. Consider the internal startup timer and fast-start circuitry for systems needing reduced initial delay. Evaluate the thermal performance within the specified -40°C to 105°C range to ensure reliability under varying environmental conditions.

Part Context

The MC33262 belongs to the MC332 family of power factor controllers manufactured by onsemi. It shares functional similarities with the MC34262 but is distinguished by its specific commercial-grade temperature rating and packaging options. This series is engineered to provide robust performance in cost-sensitive power supply designs while maintaining efficient power factor correction capabilities.

Replacement Considerations

MC34262