Texas Instruments (Dallas, TX) introduced a 700-V switcher with the industry’s lowest quiescent current of less than 100 uA – half the power consumption of existing solutions. The UCC28880 controller integrates a 700-V power MOSFET and high-voltage current source, increasing overall energy efficiency of “always-on” non-isolated power systems with output currents up to 100 mA, such as smart meters, home automation equipment and white goods. Key features and benefits include:

• Reduction in application size and overall system cost: The circuit integrates a 700-V MOSFET, start-up current source and internal current sensing in a tiny 7-pin SO package size of 29.4mm2.
• System performance under excessive currents: Along with current limit function, the controller’s inductor current runaway protection helps protect against under load short-circuit conditions to ensure design reliability. 
• Thermal protection: The device provides over-temperature protection with hysteretic re-start for safe operation.
• Increased creepage and clearance: High-voltage pins are segregated to one side of the package, which maximizes separation between low and high voltage pins.

For more information, visit www.ti.com.