RAA223183 Overview
1000V Off-line Flyback Regulator Datasheet The RAA223183 is an off-line Flyback regulator with a 1000V integrated MOSFET, designed for high-reliability application of single-phase and 3-phase smart meter power supplies and other generally isolated power supplies. The RAA223183 can deliver up to 7W power from the single-phase and 11W from 3-phase universal inputs. The RAA223183 operates in DCM with constant switching frequency at full load. The system is inherently stable with an easy feedback loop design while switching at constant frequency without interfering with the munication of the smart meter. At light load, the RAA223183 enters burst mode operation to reduce the IC power consumption while keeping the burst frequency below 3kHz to avoid interference to the PLC frequency band. The RAA223183 features a unique short-time heavy load operation mode, which delivers up to 15w output...
RAA223183 Applications
- Flyback regulator with 1000V 9Ω MOSFET
- Single 400V bulk capacitor for single-phase input up to 460VAC
- Frequency doubling for heavy load operation (up to 15W in single-phase and 21W and above in 3-phase), with programmable duration (maximum time depends on therma
- Valley switching to reduce switching losses