ML4826CP2

Overview

The ML4826CP2 is a Power Factor Correction and Dual Output PWM Controller Combo manufactured by Fairchild Semiconductor. It integrates internally synchronized PFC and PWM functions within a single IC, designed for high-power switched mode power supplies. The device supports average current continuous boost leading edge PFC and high-efficiency trailing edge PWM operation. It features a fast transconductance error amplifier for the voltage loop and reduces ripple current in the storage capacitor between sections. The component operates with low total harmonic distortion and can be configured for current mode or voltage mode PWM operation.

Feature Summary

• Integrates internally synchronized PFC and PWM functions into a single integrated circuit
• Reduces ripple current in the storage capacitor located between the PFC and PWM sections
• Supports average current continuous boost leading edge PFC topology
• Enables configurable high-efficiency trailing edge PWM operation in either current mode or voltage mode

Applications

• High power factor corrected switched mode power supplies
• Offline AC/DC converter systems requiring combined PFC and dual output control
• Industrial power supply designs utilizing average current mode PFC

Procurement Notes

Verify the manufacturer origin as Fairchild Semiconductor or its successor entities such as ON Semiconductor. Confirm the package type matches the DIP-20 specification. Ensure the part number suffix CP2 corresponds to the correct temperature range and commercial grade classification. Check RoHS compliance status against current regulatory requirements before procurement.

Selection Notes

Select this component when a design requires integrated power factor correction and dual output pulse width modulation control within a single package. It is suitable for applications needing reduced component count and minimized ripple current in bulk capacitors. Consider its capability for both current mode and voltage mode PWM configurations during system architecture planning.

Part Context

The ML4826 series belongs to the family of power management integrated circuits combining power factor correction with pulse width modulation. These controllers are engineered to improve efficiency in offline power conversion systems. The specific CP2 variant denotes the commercial temperature range and DIP-20 packaging format used in through-hole assembly processes.

Replacement Considerations

ML4824CP2_Q is a documented substitute offering similar PFC and PWM controller functionality. Verify pin compatibility and electrical specifications before substitution.