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UCC2897A 高级电流模式有源钳位 PWM 控制器

UCC2897A
Control Method Current Mode
Frequency(Max)(kHz) 1000
Pin/Package 20QFN, 20TSSOP
Regulated Outputs(#) 1
Operating Temperature Range(°C) -40 to 125
Rating Catalog
UCC2897A 描述

The UCC2897A PWM controller simplifies implementation of the various active clamp/reset and synchronous rectifier switching power topologies.

The UCC2897A is a peak current-mode, fixedfrequency, high-performance pulse width modulator. It includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active clamp operation.

Features include an internal programmable slope compensation circuit, precise DMAX limit, and a synchronizable oscillator with an internal timing capacitor. An accurate line monitoring function also programs the converter’s ON and OFF transitions with regard to the bulk input voltage, VIN.

The UCC2897A adds a second level hiccup mode current sense threshold, bi-directional synchronization and input overvoltage protection functionalities.

UCC2897A 特性
UCC2897A 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
UCC2897APW ACTIVE -40 to 125 1.35 | 1ku TSSOP (PW) | 20 70 | TUBE UCC2897A
UCC2897APWR ACTIVE -40 to 125 1.20 | 1ku TSSOP (PW) | 20 2000 | LARGE T&R UCC2897A
UCC2897ARGPR ACTIVE -40 to 125 1.20 | 1ku QFN (RGP) | 20 3000 | LARGE T&R 2897A
UCC2897ARGPT ACTIVE -40 to 125 1.35 | 1ku QFN (RGP) | 20 250 | SMALL T&R 2897A
UCC2897A 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
UCC2897APW Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   UCC2897APW
UCC2897APWR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   UCC2897APWR
UCC2897ARGPR Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   UCC2897ARGPR
UCC2897ARGPT Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   UCC2897ARGPT
UCC2897A 应用技术支持与电子电路设计开发资源下载
  1. UCC2897A 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)
UCC2897A 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
UCC2897A 评估模块 UCC2897AEVM 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