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UCC3808A-2 低功耗电流模式推挽 PWM

UCC3808A-2 描述

The UCC3808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC3808A contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count.

The UCC3808A dual output drive stages are arranged in a push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 60 ns to 200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.

The UCC3808A family offers a variety of package options, temperature range options, and choice of undervoltage lockout levels.

UCC3808A-2 UCC3808A-2
Topology Full-Bridge, Half-Bridge, Push-Pull Boost, Buck, Full-Bridge, Half-Bridge, Push-Pull
Control Method Current Mode Current Mode
Duty Cycle(Max)(%) 50 50
Frequency(Max)(kHz) 1000 1000
UVLO Thresholds On/Off(V) 4.3/4.1 4.3/4.1
Pin/Package 8PDIP, 8SOIC, 8TSSOP 8PDIP, 8SOIC, 8TSSOP
Regulated Outputs(#) 2 2
Operating Temperature Range(°C) -40 to 85 0 to 70
Rating Catalog Catalog
UCC3808A-2 特性
UCC3808A-2 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
UCC3808AD-2 ACTIVE -40 to 85 1.15 | 1ku SOIC (D) | 8 75 | TUBE 2808A-2
UCC3808AD-2G4 ACTIVE -40 to 85 1.15 | 1ku SOIC (D) | 8 75 | TUBE 2808A-2
UCC3808ADTR-2 ACTIVE -40 to 85 1.05 | 1ku SOIC (D) | 8 2500 | LARGE T&R 2808A-2
UCC3808ADTR-2G4 ACTIVE -40 to 85 1.05 | 1ku SOIC (D) | 8 2500 | LARGE T&R 2808A-2
UCC3808AN-2 ACTIVE -40 to 85 1.15 | 1ku PDIP (P) | 8 50 | TUBE UCC3808A
N-2
UCC3808AN-2G4 ACTIVE -40 to 85 1.15 | 1ku PDIP (P) | 8 50 | TUBE UCC3808A
N-2
UCC3808APW-2 ACTIVE -40 to 85 1.15 | 1ku TSSOP (PW) | 8 150 | TUBE 2808A2
UCC3808APW-2G4 ACTIVE -40 to 85 1.15 | 1ku TSSOP (PW) | 8 150 | TUBE 2808A2
UCC3808APWTR-2 ACTIVE -40 to 85 1.05 | 1ku TSSOP (PW) | 8 2000 | LARGE T&R 2808A2
UCC3808APWTR-2G4 ACTIVE -40 to 85 1.05 | 1ku TSSOP (PW) | 8 2000 | LARGE T&R 2808A2
UCC3808A-2 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
UCC3808AD-2 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-UNLIM   UCC3808AD-2
UCC3808AD-2G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-UNLIM UCC3808AD-2G4 UCC3808AD-2G4
UCC3808ADTR-2 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-UNLIM   UCC3808ADTR-2
UCC3808ADTR-2G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-UNLIM UCC3808ADTR-2G4 UCC3808ADTR-2G4
UCC3808AN-2 Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg Type   UCC3808AN-2
UCC3808AN-2G4 Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg Type UCC3808AN-2G4 UCC3808AN-2G4
UCC3808APW-2 Green (RoHS & no Sb/Br) Call TI Level-2-260C-2 YEAR   UCC3808APW-2
UCC3808APW-2G4 Green (RoHS & no Sb/Br) Call TI Level-2-260C-2 YEAR UCC3808APW-2G4 UCC3808APW-2G4
UCC3808APWTR-2 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-2 YEAR   UCC3808APWTR-2
UCC3808APWTR-2G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-2 YEAR UCC3808APWTR-2G4 UCC3808APWTR-2G4
UCC3808A-2 应用技术支持与电子电路设计开发资源下载
  1. UCC3808A-2 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)
UCC3808A-2 工具与软件
名称 型号 公司 工具/软件类型
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