UCC2808A-1EP 增强型产品低功率电流模式推挽 PWM

The UCC2808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC2808A 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 UCC2808A 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 UCC2808A family offers a variety of package options and choice of undervoltage lockout levels

UCC2808A-1EP
Control Method Current    
Duty Cycle (Max) (%) 50    
Frequency (Max) (kHz) 1000    
UVLO Thresholds On/Off (V) 12.5/8.3    
Pin/Package 8SOIC    
Regulated Outputs (#) 2    
Operating Temperature Range (C) -40 to 125    
Rating HiRel Enhanced Product
UCC2808A-1EP 特性
UCC2808A-1EP 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
UCC2808AQDR-1EP ACTIVE -40 to 125 2.60 | 100u SOIC (D) | 8 2500 | LARGE T&R  
V62/04642-01XE ACTIVE -40 to 125 2.60 | 100u SOIC (D) | 8 2500 | LARGE T&R  
UCC2808A-1EP 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
UCC2808AQDR-1EP Green (RoHS & no Sb/Br)   CU NIPDAU   Level-2-260C-1 YEAR UCC2808AQDR-1EP UCC2808AQDR-1EP
V62/04642-01XE Green (RoHS & no Sb/Br)   CU NIPDAU   Level-2-260C-1 YEAR V62/04642-01XE V62/04642-01XE
UCC2808A-1EP 工具与软件
培训内容 型号 软件/工具类型
最常用开关模式电源的功率级设计器 POWERSTAGE-DESIGNER 分析软件
UCC2808A-1EP 应用技术支持与电子电路设计开发资源下载
  1. UCC2808A-1EP数据资料 dataSheet 下载.PDF
  2. TI 德州仪器电源管理选型与价格参考 . xls
  3. Current Doubler Rectifier Offers Ripple Current Cancellation
  4. Synchronous Rectifiers of a Current Doubler
  5. A Power Management Solution for Efficient, Multiple Output Applications
  6. DN-63 The Current-Doubler Rectifier: An Alternative Rectification Technique