Application Notes:SY5814A Single Stage Buck PFC Controller For LED Lighting Preliminary datasheet General Description The SY5814A is a single stage Buck PFC controller targeting at LED lighting applications.
It drives the Buck converter in the quasi-resonant mode to achieve higher efficiency.
It keeps the Buck converter in constant on time operation to achieve high power factor.
Features Ordering Information SY5814 □(□□)□ Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 105°C Ordering Number Package type Note SY5814AABC SOT23-6 ---- • Valley turn-on of the MOSFET to achieve low switching losses • 0.
3V current sense reference voltage leads to a lower sense resi...

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