ML4824CP1

Overview

The ML4824CP1 is a Power Factor Correction and PWM Controller Combo manufactured by Fairchild Semiconductor. It integrates an average current mode boost PFC controller with a trailing edge PWM controller in a single package. The device operates within a supply voltage range of 10.5V to 13.2V, utilizing a switching frequency of 76kHz for the PFC section. It is housed in a 16-pin DIP (PDIP) package designed for through-hole mounting.

Feature Summary

• Integrates internally synchronized PFC and PWM controllers within a single IC
• Supports average current mode continuous boost leading edge PFC operation
• Features high efficiency trailing edge PWM configurable for current or voltage mode
• Includes over-voltage comparator to prevent output runaway during load removal

Applications

• Power factor corrected switched mode power supplies
• Offline AC-DC power conversion systems
• Compliance with IEC1000-2-3 electromagnetic interference specifications

Procurement Notes

Verify component authenticity through authorized distribution channels due to potential availability constraints. Confirm package integrity and pin alignment prior to assembly. Ensure storage conditions comply with moisture sensitivity level requirements to maintain solderability and electrical performance throughout the manufacturing process.

Selection Notes

Select this component for designs requiring combined power factor correction and pulse width modulation control. Consider the specific switching frequency requirements relative to output component sizing. Evaluate thermal management needs based on the through-hole package configuration and expected operating temperature ranges for the target application environment.

Part Context

This part belongs to the ML4824 series of power management integrated circuits. The series provides solutions for improving power line loading and reducing stress on switching FETs. Variants within the series may differ in switching frequency relationships between the PFC and PWM sections, offering flexibility for different design architectures.

Replacement Considerations

Check for direct substitutes such as the ML4824CS1 or ML4824IS1, noting differences in package type and mounting style. Verify functional compatibility regarding switching frequencies and control modes before implementation.