iW1679-50 - Dialog Semiconductor

iW1679-50 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller

iW1679-50 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller 1.0 Features ●● Optimized for 5V2A AC/DC adapters/chargers with < 30mW no-load power consumption at 230VAC and fast dynamic load response for both one-time and repetitive load transients ●● Direct drive of low-cost BJT power switch ●● Very tight constant voltage and constant current regulati.

Features

●
● Optimized for 5V2A AC/DC adapters/chargers with < 30mW no-load power consumption at 230VAC and fast dynamic load response for both one-time and repetitive load transients
●
● Direct drive of low-cost BJT power switch
●
● Very tight constant voltage and constant current regulation over entire operating range
●
● PrimAccurateTM primary-side feedback eliminates opto-isolators and simplifies design
●
● EZ-EMI® design enhances manufacturability
●
● Intrinsically low common mode noise
●
● Optimized 72kHz maximum PWM switching frequency achieves best size and efficiency
●
● Adaptive multi-mode PWM/PFM co.