SY58203A1 Description
The SY58203A1 is a single stage Flyback and PFC regulator targeting at LED lighting applications. It integrates a 700V MOSFET to decrease physical volume. 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.
SY58203A1 Key Features
- Integrated 700V MOSFET
- Primary side control eliminate to the opto-coupler
- Valley turn-on of the primary MOSFET to achieve low switching losses
- 0.3V primary current sense reference voltage leads to a lower sense resistance thus a lower conduction loss
- Low start up current: 15µA typical
- Reliable short LED and Open LED protection
- Power factor >0.90 with single-stage conversion
- Maximum frequency limit: 120kHz
- pact package: SO8