- 1、本文档共17页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
Application Note: SY5055
PFC+LLC Combo Controller
Advanced Design Specification
General Description Features
The SY5055 is a PFC+LLC combo controller, which • PF0.95, THD5%
integrates a boost PFC controller and a resonant half-
• Boost Quasi Resonant (QR) Operation
bridge controller.
Boost converter works in CrM/DCM mode to • Boost Burst Operation at Light Load
minimize switching losses and get better EMI
• LLC Fast Dynamic Response
performance. Proprietary control is adopted to get
unity PF and lowest THD. Burst function increases • LLC Integrated Half Bridge Driver
efficiency at low load. Reliable input BO/BI
• Input BO/BI Protection
protection, boost output OVP/UVP, over current
protection, boost feedback protection guarantee safety • Boost Output, LLC Output OVP Protection
work.
• Cycle by Cycle Peak Current Protection
LLC converter with proprietary control achieves fast
dynamic response and easy loop compensation • Over Temperature Protection
parameters design, also peripheral devices count are
greatly reduced to save BOM cost. Output OVP and • LLC Capacitive Mode Protection
OTP, OLP protect safety operation
Ordering Information
文档评论(0)