ML4801IP

Overview

The ML4801IP is a power factor correction (PFC) controller manufactured by onsemi. It integrates variable feedforward PFC and PWM control functions into a single IC, designed for high-efficiency power conversion applications. The device operates with an average current mode architecture at a switching frequency of 76kHz. It features a low start-up current of 200μA typical and a low operating current of 5.5mA typical to minimize standby power consumption. The component is housed in a 16-pin PDIP package and supports bipolar technology.

Feature Summary

• Integrates internally synchronized PFC and PWM control within a single integrated circuit
• Features variable feedforward capability for enhanced power factor correction performance
• Designed with low start-up and operating currents to improve energy efficiency

Applications

• Power Factor Correction circuits
• Switching Power Supplies
• Power Management Systems

Procurement Notes

Verify the specific manufacturer source and authenticity when sourcing this component, as availability may vary across distributors. Confirm that the 16-pin PDIP package matches your board layout requirements. Ensure compatibility with existing design specifications regarding the 76kHz switching frequency and bipolar technology constraints before finalizing procurement decisions.

Selection Notes

Select the ML4801IP for designs requiring combined PFC and PWM control in a compact form factor. Its low quiescent current makes it suitable for applications where standby power loss is critical. Consider the 16-pin PDIP package for through-hole mounting needs. Evaluate system requirements against the 76kHz operating frequency to ensure appropriate passive component selection for optimal performance.

Part Context

This component belongs to onsemi's portfolio of power management solutions, specifically targeting efficient power conversion. It serves as a specialized controller for managing power quality and efficiency in electronic systems. The integration of PFC and PWM functions simplifies the design process for engineers developing advanced power supply architectures.

Replacement Considerations

Check for direct pin-to-pin replacements or functional equivalents from other manufacturers if supply issues arise. Verify that any substitute maintains the same 16-pin PDIP configuration and bipolar technology characteristics to ensure seamless integration without redesigning the surrounding circuitry.