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UCC28C45 BiCMOS 低功率电流模式 PWM 控制器

UCC28C45 描述

UCC38C4x family is a high-performance current-mode PWM controller. It is an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard UC384xA family and UC384x family of PWM controllers. In addition, lower startup voltage versions of 7 V are offered as UCC38C40 and UCC38C41.

Providing necessary features to control fixed frequency, peak current-mode power supplies, this family offers the following performance advantages. The device offers high-frequency operation up to 1 MHz with low start-up and operating currents, thus minimizing start-up loss and low operating power consumption for improved efficiency. The device also features a very fast current-sense-to-output delay time of 35 ns and a ±1 A peak output current capability with improved rise and fall times for driving large external MOSFETs directly.

UCC28C45 UCC38C45
Topology Boost, Flyback, Forward Boost, Buck, Flyback, Forward
Control Method Current Mode Current Mode
Duty Cycle(Max)(%) 50 50
Frequency(Max)(kHz) 1000 1000
UVLO Thresholds On/Off(V) 8.4/7.6 8.4/7.6
Pin/Package 8MSOP, 8PDIP, 8SOIC 8MSOP, 8PDIP, 8SOIC
Regulated Outputs(#) 1 1
Operating Temperature Range(°C) -40 to 105,-40 to 85 0 to 70
Rating Catalog Catalog
UCC28C45 特性
UCC28C45 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
UCC28C45D ACTIVE -40 to 105 0.80 | 1ku SOIC (D) | 8 75 | TUBE 28C45
UCC28C45DG4 ACTIVE -40 to 105 0.80 | 1ku SOIC (D) | 8 75 | TUBE 28C45
UCC28C45DGK ACTIVE -40 to 105 0.80 | 1ku MSOP (DGK) | 8 80 | TUBE 28C45
UCC28C45DGKG4 ACTIVE -40 to 105 0.80 | 1ku MSOP (DGK) | 8 80 | TUBE 28C45
UCC28C45DGKR ACTIVE -40 to 85 0.75 | 1ku MSOP (DGK) | 8 2500 | LARGE T&R 28C45
UCC28C45DGKRG4 ACTIVE -40 to 85 0.75 | 1ku MSOP (DGK) | 8 2500 | LARGE T&R 28C45
UCC28C45DR ACTIVE -40 to 105 0.75 | 1ku SOIC (D) | 8 2500 | LARGE T&R 28C45
UCC28C45DRG4 ACTIVE -40 to 105 0.75 | 1ku SOIC (D) | 8 2500 | LARGE T&R 28C45
UCC28C45P ACTIVE -40 to 105 0.80 | 1ku PDIP (P) | 8 50 | TUBE UCC28C45P
UCC28C45PG4 ACTIVE -40 to 105 0.80 | 1ku PDIP (P) | 8 50 | TUBE UCC28C45P
UCC28C45 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
UCC28C45D Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   UCC28C45D
UCC28C45DG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM UCC28C45DG4 UCC28C45DG4
UCC28C45DGK Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   UCC28C45DGK
UCC28C45DGKG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR UCC28C45DGKG4 UCC28C45DGKG4
UCC28C45DGKR Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   UCC28C45DGKR
UCC28C45DGKRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR UCC28C45DGKRG4 UCC28C45DGKRG4
UCC28C45DR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   UCC28C45DR
UCC28C45DRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM UCC28C45DRG4 UCC28C45DRG4
UCC28C45P Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg Type   UCC28C45P
UCC28C45PG4 Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg Type UCC28C45PG4 UCC28C45PG4
UCC28C45 应用技术支持与电子电路设计开发资源下载
  1. UCC28C45 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)
UCC28C45 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
UCC28C45 评估模块 UCC28C45EVM 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