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UCC28950 具有同步整流的绿色环保相移全桥控制器

UCC28950
Topology Full-Bridge
Control Method Current Mode
Duty Cycle(Max)(%) 97
Frequency(Max)(kHz) 1000
UVLO Thresholds On/Off(V) 6.75min/6.15min
Pin/Package 24TSSOP
Regulated Outputs(#) 1
Operating Temperature Range(°C) -40 to 125
Rating Catalog
UCC28950 描述

The UCC28950 enhanced phase-shifted controller builds upon Texas Instrument’s industry standard UCCx895 phase-shifted controller family with enhancements that offer best in class efficiency in today’s high performance power systems. The UCC28950 implements advanced control of the full-bridge along with active control of the synchronous rectifier output stage.

The primary-side signals allow programmable delays to ensure ZVS operation over wide-load current and input voltage range, while the load current naturally tunes the secondary-side synchronous rectifiers switching delays, maximizing overall system efficiency.

The UCC28950 also offers multiple light-load management features including burst mode and dynamic SR on/off control when transitioning in and out of Discontinuous Current Mode (DCM) operation, ensuring ZVS operation is extended down to much lighter loads.

UCC28950 特性
UCC28950 芯片订购指南
器件 状态 温度 (oC) 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
UCC28950PW ACTIVE -40 to 125 4.70 | 1ku TSSOP (PW) | 24 60 | TUBE UCC28950
UCC28950PWR ACTIVE -40 to 125 4.25 | 1ku TSSOP (PW) | 24 2000 | LARGE T&R UCC28950
UCC28950 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
UCC28950PW Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   UCC28950PW
UCC28950PWR Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   UCC28950PWR
UCC28950 应用技术支持与电子电路设计开发资源下载
  1. UCC28950 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器AC/DC 和 DC/DC 电源产品选型与价格参考 . xls
  3. Dual MOSFET Driver (PDF 498 KB)
  4. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
  5. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  6. 所选封装材料的热学和电学性质 (PDF 645 KB)
  7. 高速数据转换 (PDF 1967 KB)
  8. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  9. Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
  10. Principles of Data Acquisition and Conversion (PDF 50 KB)
  11. Interleaving Analog-to-Digital Converters (PDF 64 KB)
  12. What Designers Should Know About Data Converter Drift (PDF 95 KB)
  13. Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
  14. Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (PDF 105 KB)
UCC28950 工具与软件
名称 型号 公司 工具/软件类型
音频的快速搜索选择工具 AUDIO_SELECTION_TOOL Texas Instruments 免费评估工具
UCC28950 评估模块 UCC28950EVM Texas Instruments 开发电路板/EVM
用于音频转换器的软件驱动程序 CODECDRIVERS-SW Texas Instruments 应用软件