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.
| UCC2808A-1 | UCC3808A-1 | |
| Topology | Full-Bridge, Half-Bridge, Push-Pull | Boost, Buck, 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) | 12.5/8.3 | 12.5/8.3 |
| 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 |
| 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 |
| UCC2808AD-1 | ACTIVE | -40 to 85 | 1.15 | 1ku | SOIC (D) | 8 | 75 | TUBE | 2808A-1 |
| UCC2808AD-1G4 | ACTIVE | -40 to 85 | 1.15 | 1ku | SOIC (D) | 8 | 75 | TUBE | 2808A-1 |
| UCC2808ADTR-1 | ACTIVE | -40 to 85 | 1.05 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | 2808A-1 |
| UCC2808ADTR-1G4 | ACTIVE | -40 to 85 | 1.05 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | 2808A-1 |
| UCC2808AN-1 | ACTIVE | -40 to 85 | 1.15 | 1ku | PDIP (P) | 8 | 50 | TUBE | UCC2808A N-1 |
| UCC2808AN-1G4 | ACTIVE | -40 to 85 | 1.15 | 1ku | PDIP (P) | 8 | 50 | TUBE | UCC2808A N-1 |
| UCC2808APW-1 | ACTIVE | -40 to 85 | 1.15 | 1ku | TSSOP (PW) | 8 | 150 | TUBE | 2808A1 |
| UCC2808APW-1G4 | ACTIVE | -40 to 85 | 1.15 | 1ku | TSSOP (PW) | 8 | 150 | TUBE | 2808A1 |
| UCC2808APWTR-1 | ACTIVE | -40 to 85 | 1.05 | 1ku | TSSOP (PW) | 8 | 2000 | LARGE T&R | 2808A1 |
| UCC2808APWTR-1G4 | ACTIVE | -40 to 85 | 1.05 | 1ku | TSSOP (PW) | 8 | 2000 | LARGE T&R | 2808A1 |
| 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 |
| UCC2808AD-1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC2808AD-1 | |
| UCC2808AD-1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC2808AD-1G4 | UCC2808AD-1G4 |
| UCC2808ADTR-1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC2808ADTR-1 | |
| UCC2808ADTR-1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC2808ADTR-1G4 | UCC2808ADTR-1G4 |
| UCC2808AN-1 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | UCC2808AN-1 | |
| UCC2808AN-1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | UCC2808AN-1G4 | UCC2808AN-1G4 |
| UCC2808APW-1 | Green (RoHS & no Sb/Br) | Call TI | Level-2-260C-1 YEAR | UCC2808APW-1 | |
| UCC2808APW-1G4 | Green (RoHS & no Sb/Br) | Call TI | Level-2-260C-1 YEAR | UCC2808APW-1G4 | UCC2808APW-1G4 |
| UCC2808APWTR-1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC2808APWTR-1 | |
| UCC2808APWTR-1G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC2808APWTR-1G4 | UCC2808APWTR-1G4 |
| 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 |
| 用于音频转换器的软件驱动程序 | CODECDRIVERS-SW | Texas Instruments | 应用软件 |
