High voltage switcher cuts quiescent power consumption in half
Expanding its portfolio of high voltage power solutions for offline AC/DC designs, Texas Instruments has introduced a 700V switcher with a quiescent current of less than 100uA – half that of existing devices.
The UCC28880 integrates a 700V power MOSFET and high voltage current source, increasing overall energy efficiency of always on non isolated power systems with output currents up to 100mA, such as smart meters, home automation equipment and white goods.
Dave Freeman, chief technology officer for TI's high voltage power solutions group said: "Hundreds of millions of smart meters around the world continuously draw power from the grid to measure energy use and provide feedback to the utility.
"Even though meters consume relatively small amounts of power that is not charged to the customer, when you multiply the amount of energy needed to power the devices, it makes sense to minimise the energy consumed. New power conversion technologies, such as TI's new high voltage power solution will help smart meters minimise energy consumption."
