首页 > TI 德州仪器 > 电源管理 > AC/DC 和 DC/DC 电源

UCC28221 具有可编程最大占空比的双路交错 PWM 控制器

UCC28221
Topology Flyback, Forward
Control Method Current Mode
Duty Cycle(Max)(%) 90
Frequency(Max)(kHz) 2000
UVLO Thresholds On/Off(V) 13.0/8.0
Pin/Package 16SOIC, 20TSSOP
Regulated Outputs(#) 2
Operating Temperature Range(°C) -40 to 105
Rating Catalog
UCC28221 描述

The UCC28220 and UCC28221 are a family of BiCMOS interleaved dual channel PWM controllers. Peak current mode control is used to ensure current sharing between the two channels. A precise maximum duty cycle clamp can be set to any value between 60% and 90% duty cycle per channel.

UCC28221 has an UVLO turn-on threshold of 10 V for use in 12-V supplies while UCC28221 has a turn-on threshold of 13 V for systems needing wider UVLO hysteresis. Both have 8-V turn-off thresholds.

Additional features include a programmable internal slope compensation with a special circuit which is used to ensure exactly the same slope is added to each channel and a high voltage 110-V internal JFET for easier startup for the wider hysteresis UCC28221 version.

UCC28221 特性
UCC28221 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
UCC28221D ACTIVE -40 to 105 1.85 | 1ku SOIC (D) | 16 40 | TUBE 28221
UCC28221DG4 ACTIVE -40 to 105 1.85 | 1ku SOIC (D) | 16 40 | TUBE 28221
UCC28221DR ACTIVE -40 to 105 1.70 | 1ku SOIC (D) | 16 2500 | LARGE T&R 28221
UCC28221DRG4 ACTIVE -40 to 105 1.70 | 1ku SOIC (D) | 16 2500 | LARGE T&R 28221
UCC28221PW ACTIVE -40 to 105 2.20 | 1ku TSSOP (PW) | 20 90 | TUBE 28221
UCC28221PWG4 ACTIVE -40 to 105 2.20 | 1ku TSSOP (PW) | 20 90 | TUBE 28221
UCC28221PWR ACTIVE -40 to 105 1.70 | 1ku TSSOP (PW) | 20 2000 | LARGE T&R 28221
UCC28221PWRG4 ACTIVE -40 to 105 1.70 | 1ku TSSOP (PW) | 20 2000 | LARGE T&R 28221
UCC28221 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
UCC28221D Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   UCC28221D
UCC28221DG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM UCC28221DG4 UCC28221DG4
UCC28221DR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   UCC28221DR
UCC28221DRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM UCC28221DRG4 UCC28221DRG4
UCC28221PW Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   UCC28221PW
UCC28221PWG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM UCC28221PWG4 UCC28221PWG4
UCC28221PWR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   UCC28221PWR
UCC28221PWRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM UCC28221PWRG4 UCC28221PWRG4
UCC28221 应用技术支持与电子电路设计开发资源下载
  1. UCC28221 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)
UCC28221 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
UCC28221 200W 评估模块 UCC28221EVM Texas Instruments 开发电路板/EVM
UCC28528 评估模块 UCC28528EVM Texas Instruments 开发电路板/EVM
UCC28221 MathCAD 计算实用程序 UCC28221-CALC Texas Instruments 计算实用程序
UCC28220 评估模块 UCC28220EVM 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