SY5055A
Overview
- PF>0.95, THD<5% integrates a Boost PFC controller and a resonant halfbridge controller. The Boost converter works in CrM/DCM mode to minimize switching losses and get better EMI performance. Proprietary control is adopted to get unity PF and lowest THD. Burst function increases efficiency at low load. Reliable input BO/BI protection, Boost output OVP/UVP, over current protection, Boost feedback protection guarantees safety work. The LLC converter with proprietary control achieves fast dynamic response and easy loop compensation parameters design. The peripheral devices count is greatly reduced to save BOM cost. The SY5055A also has Output OVP, OTP and OLP for safety operation. * *
- Boost Quasi Resonant (QR) Operation Boost Burst Operation at Light Load LLC Fast Dynamic Response *
- r LLC Integrated Half-bridge Driver Fo Input BO/BI Protection * * *
- Boost Output, LLC Output OVP ed Cycle by Cycle Peak Current Protection ar Over Temperature Protection Prep LLC Capacitive Mode Protection
