NXP TEA1723

Beschreibung

The TEA1723 is a small and low cost module Switched Mode Power Supply (SMPS)controller IC for power applications (up to 11 W) and operates directly from the rectifieduniversal mains input. The device includes a high voltage power switch (700 V) and hasbeen optimized for flyback converter topologies to provide high-efficiency over the entireload range with ultra-low power consumption in the no-load condition. It provides a circuitfor start-up directly from the rectified mains voltage without any external bleeder circuits.The converter operates as a regulated voltage source from no-load up to the maximumoutput current and operates as current source that delivers the maximum current over abroad output voltage range. Using the TEA1723, a low power converter can be built atminimum cost and with the minimum number of external components.The controller regulates the output voltage with primary-side sensing which eliminates theneed for an additional secondary feedback circuitry and simplifies the design. At higherpower levels, a frequency and current control mode is used. It operates with Burst modecontrol at low power levels and no-load condition. The burst mode minimizes audiblenoise and provides an energy saver state which reduces the power consumption inno-load condition. The Burst mode frequency of 905 Hz enables no-load powerconsumption < 25 mW at 230 V (AC) mains input.

Eigenschaften

REMARKS:-ONLY BOM AVAILABLE IN IC FOLDER

Typische Anwendungen

• Battery chargers for cellular phones, tablet pc and other power adapters up to 11 W
• Power supply for white goods applications
• Standby supply for TV, desktop PC and set-top boxes

Weiterführende Informationen

• Datenblatt