IW1697

iW1697 Low-Power Off-Line Digital Green-Mode PWM Controller 1.0 Features ●● Primary-side feedback eliminates opto-isolators and simplifies design ●● No-load power consumption < 20 mW at 230 Vac with typical application circuit (5 star rating) ●● Active start-up scheme enables fastest possible startup ●● Fast dynamic load response ●● Adaptive multi-mode PWM/PFM control improves efficiency ●● Quasi-resonant operation for highest overall efficiency ●● EZ-EMI ® design to easily meet global EMI standards ●● Direct drive of low-cost BJT switch ●● Dynamic base current control ●● Very tight constant voltage and constant current regulation with primary-side-only feedback ●● No external compensation components required ●● Complies with EPA 2.0 energy-efficiency specifications with ample margin ●● Ultra-low start-up current (1.5 μA typical) ●● Built-in soft start ●● Built-in short circuit protection and output overvoltage protection ...