SY5055 Datasheet PDF - Silergy PFC+LLC Combo Controller Specs

SY5055 - PFC+LLC Combo Controller

Datasheet Summary

Description

The SY5055 is a PFC+LLC combo controller, which 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.

Features

PF>0.95, THD.

Datasheet Details

Part number	SY5055
Manufacturer	Silergy
File Size	484.57 KB
Description	PFC+LLC Combo Controller
Datasheet	SY5055 Datasheet
Additional preview pages of the SY5055 datasheet.

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Full PDF Text Transcription

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SY5055 PFC+LLC Combo Controller General Description The SY5055 is a PFC+LLC combo controller, which 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 SY5055 also has Output OVP, OTP and OLP for safety operation.

Published: Jan 19, 2025 |