SY5830B Description
The SY5830B is a single stage Flyback and PFC controller targeting at LED lighting applications. It is a primary side controller without applying any secondary feedback circuit for low cost, and drives the Flyback converter in the quasi-resonant mode to achieve higher efficiency. It keeps the Flyback converter in constant on time operation to achieve high power factor.
SY5830B Key Features
- Primary side control eliminates the opto-coupler
- Valley turn-on of the primary MOSFET to achieve
- Power factor >0.90 with single-stage conversion
- Reliable short LED and Open LED protection
- Quick start up <500ms
- Low start up current:15µA typical
- Package: SOT23-6