Datasheet Details
| Part number | SY5839 |
|---|---|
| Manufacturer | Silergy |
| File Size | 672.84 KB |
| Description | Single Stage Buck PFC Controller |
| Datasheet |
 SY5839 Datasheet
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General Description
The SY5839 is a single stage Buck 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.
Key Features
- Valley turn-on of the MOSFET to achieve low switching losses.
- Power factor >0.90 with single-stage conversion.
- Low start up current: 15ยต A typical.
- Quick start up.