The ML4826 is a high power controller for power factor corrected, switched mode power supplies. It features internally synchronized PFC and PWM, low total harmonic distortion, low ripple current in the storage capacitor, average current continuous boost leading edge PFC, high efficiency trailing edge PWM with dual totem-pole outputs, average line voltage compensation with brown-out control, PFC overvoltage comparator, current-fed multiplier for improved noise immunity, and overvoltage protection, UVLO, and soft start.
The ML4826 integrates a leading‑edge power‑factor‑correction (PFC) front end with a trailing‑edge pulse‑width‑modulator (PWM) back end in a single IC. It provides synchronized operation, low total harmonic distortion, and a range of protection functions such as soft‑start, over‑voltage, brown‑out and undervoltage lockout.
The document lists the 20‑pin PDIP package pin configuration, absolute maximum ratings, electrical characteristics, typical performance curves, mechanical dimensions and ordering information. It is intended for designers of switched‑mode power supplies requiring combined PFC and PWM functionality.