The UCC3807 family of high speed, low power integrated circuits contains all of the control and drive circuitry required for off-line and dc-to-dc fixed frequency current mode switching power supplies with minimal external parts count.
These devices are similar to the UCC3800 family, but with the added feature of a user programmable maximum duty cycle. Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3807 family also features internal full cycle soft start and internal leading edge blanking of the current sense input.
The UCC3807 family offers a variety of package options, temperature range options, and choice of critical voltage levels. The family has UVLO thresholds and hysteresis levels for off-line and battery powered systems.
| UCC2807-3 | UCC3807-3 | |
| Topology | Boost, Flyback, Forward | Boost, Buck, Flyback, Forward |
| Control Method | Current Mode | Current Mode |
| Duty Cycle(Max)(%) | 78 | 78 |
| Frequency(Max)(kHz) | 1000 | 1000 |
| UVLO Thresholds On/Off(V) | 4.3/4.1 | 4.3/4.1 |
| Pin/Package | 8SOIC | 14TSSOP, 8PDIP, 8SOIC |
| Regulated Outputs(#) | 1 | 1 |
| Operating Temperature Range(°C) | -40 to 85 | 0 to 70 |
| Rating | Military | 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 |
| UCC2807DTR-3 | ACTIVE | -40 to 85 | 1.65 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | UCC2807 D-3 2807-3 |
| UCC2807DTR-3G4 | ACTIVE | -40 to 85 | 1.65 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | UCC2807 D-3 2807-3 |
| 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 |
| UCC2807DTR-3 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-360C-3 YEAR | UCC2807DTR-3 | |
| UCC2807DTR-3G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-360C-3 YEAR | UCC2807DTR-3G4 | UCC2807DTR-3G4 |
| 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 |