MC33262CDR2

Overview

The MC33262CDR2G 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 junction temperatures up to 105°C. The device utilizes a critical conduction mode with zero-current detection to minimize harmonic distortion. Key electrical parameters include a startup supply current of 0.25mA and a maximum reverse current of 500,000μA. It features a single-quadrant multiplier and a transconductance error amplifier with typical gain of 100 mhos.

Feature Summary

• Integrates a single-quadrant dual-input multiplier for linear transmission across wide dynamic ranges.
• Employs zero-current detection to trigger conduction timing, reducing output rectifier reverse recovery requirements.
• Includes comprehensive protection mechanisms such as overvoltage comparison, undervoltage lockout, and cycle-by-cycle current limiting.

Applications

• Active power factor correction for electronic ballasts
• Pre-converter stages in offline power supplies
• Systems requiring reduced harmonic current content

Procurement Notes

Verify the complete part number includes the 'G' suffix (MC33262CDR2G) to confirm RoHS compliance and lead-free status. Confirm the package type matches the required SOIC-8 configuration for surface mount integration. Ensure the design accounts for the specified operating temperature range and voltage limits during procurement validation.

Selection Notes

Select this component for applications requiring critical conduction mode PFC control. It is suitable for designs needing integrated protection against overvoltage and current spikes. Consider the SOIC-8 package constraints and thermal management requirements for operation up to 105°C when evaluating system compatibility.

Part Context

This component belongs to the MC332 series of power factor controllers manufactured by onsemi. It is specifically engineered for high-performance power factor correction in compact power supply architectures. The device replaces older discrete solutions by integrating essential control logic, multipliers, and protection circuits into a single monolithic IC.

Replacement Considerations

The MC34262 is a documented variant within the same family offering similar functionality. Verify pinout compatibility and specific parameter tolerances before substitution. Check for any differences in packaging or environmental certifications between the CD and standard variants.