Mouser stocks low-power consumption converters from STMicroelectronics
Distributor, Mouser Electronics now stocks the VIPer01 high-voltage converters from STMicroelectronics. The high-voltage converters, based on the company’s Bipolar-CMOS-DMOS (BCD) technology, are offline, high-voltage AC/DC converters that integrate an 800V avalanche-rugged MOSFET with PWM current-mode control and multiple protection circuits.
Supporting flyback, buck, and buck-boost topologies, the converters have an integrated high-voltage start-up and sense-FET, error amplifier and oscillator with jitter, all minimise the number of external components required to design a complete application, claims the company.
Engineers can build simple and cost-effective switched-mode power supplies with a 5V output for use in home appliances, building control, lighting, motion control, and small industrial and consumer applications.
The converters operate directly from a rectified mains supply and incorporate an 800V avalanche-rugged power MOSFET that allows for a wide V AC input range. According to the company, the devices offer low power consumption and switch automatically to pulse frequency modulation (PFM) under light load conditions. On-board protection circuitry consists of drain-current limit, overload, short circuit, overvoltage and embedded thermal shutdown. There is also a built-in soft-start to improve system reliability, and tailored auxiliary supply to microcontrollers in IoT applications that are permanently connected to the Internet or a local network.
The converters meet stringent energy-saving standards, including US Energy Star and the European EuP Lot 6 Tier 2 of the EC Ecodesign Directive. System input power consumption is less than 10mW at 230V AC in a no-load condition, and less than 400mW at 230V AC with a 250mW load.
The converters are available in a 10-lead SSOP. Two evaluation boards are also available. The STEVAL-ISA177V1 is based on a non-isolated flyback converter and is jittered at 120kHz, and the STEVAL-ISA178V is based on a non-isolated buck converter and is jittered at 30kHz.