The TEA1721 is a small and low cost module Switched Mode Power Supply (SMPS) controller IC for low power applications (up to 5 W) and operates directly from the rectified universal mains input. The device includes a high voltage power switch (700 V) and has been optimized for flyback converter topologies to provide high-efficiency over the entire load range with ultra-low power consumption in the no-load condition. It provides a circuit for start-up directly from the rectified mains voltage without any external bleeder circuits. The Burst mode frequency of 430 Hz enables no-load power consumption below < 10 mW at high mains input.
The NXP Online design Tools help you design power supplies using NXP Ac to DC converter ICs. The tool guides you step by step through the calculation process in order to obtain all relevant design parameters with minimum time and effort. It also allows you to load and save your designs to share designs with other engineers. Discover our Power management Design Tools now!