| UCC25705 | |
| Topology | Boost, Flyback, Forward |
| Control Method | Voltage Mode |
| Duty Cycle(Max)(%) | 93 |
| Frequency(Max)(kHz) | 4000 |
| UVLO Thresholds On/Off(V) | 8.8/8.2 |
| Pin/Package | 8MSOP, 8PDIP, 8SOIC |
| Regulated Outputs(#) | 1 |
| Operating Temperature Range(°C) | -40 to 85 |
| Rating | Catalog |
The UCC35705 and UCC35706 devices are 8-pin voltage mode primary side controllers with fast over-current protection. These devices are used as core high-speed building blocks in high performance isolated and non-isolated power converters.
UCC35705/UCC35706 devices feature a high speed oscillator with integrated feed-forward compensation for improved converter performance. A typical current sense to output delay time of 25 ns provides fast response to overload conditions. The IC also provides an accurate programmable maximum duty cycle clamp for increased protection which can also be disabled for the oscillator to run at maximum possible duty cycle.
Two UVLO options are offered. The UCC35705 with lower turn-on voltage is intended for dc-to-dc converters while the higher turn-on voltage and the wider UVLO range of the UCC35706 is better suited for offline applications.
| 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 |
| UCC25705D | ACTIVE | -40 to 85 | 1.10 | 1ku | SOIC (D) | 8 | 75 | TUBE | 25705 |
| UCC25705DG4 | ACTIVE | -40 to 85 | 1.10 | 1ku | SOIC (D) | 8 | 75 | TUBE | 25705 |
| UCC25705DGK | ACTIVE | -40 to 85 | 1.10 | 1ku | MSOP (DGK) | 8 | 80 | TUBE | 25705 |
| UCC25705DGKG4 | ACTIVE | -40 to 85 | 1.10 | 1ku | MSOP (DGK) | 8 | 80 | TUBE | 25705 |
| UCC25705DGKTR | ACTIVE | -40 to 85 | 0.90 | 1ku | MSOP (DGK) | 8 | 2500 | LARGE T&R | 25705 |
| UCC25705DGKTRG4 | ACTIVE | -40 to 85 | 0.90 | 1ku | MSOP (DGK) | 8 | 2500 | LARGE T&R | 25705 |
| UCC25705DTR | ACTIVE | -40 to 85 | 0.90 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | 25705 |
| UCC25705DTRG4 | ACTIVE | -40 to 85 | 0.90 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | 25705 |
| UCC25705P | ACTIVE | -40 to 85 | 1.10 | 1ku | PDIP (P) | 8 | 50 | TUBE | UCC25705P |
| UCC25705PG4 | ACTIVE | -40 to 85 | 1.10 | 1ku | PDIP (P) | 8 | 50 | TUBE | UCC25705P |
| 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 |
| UCC25705D | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC25705D | |
| UCC25705DG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC25705DG4 | UCC25705DG4 |
| UCC25705DGK | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC25705DGK | |
| UCC25705DGKG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC25705DGKG4 | UCC25705DGKG4 |
| UCC25705DGKTR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC25705DGKTR | |
| UCC25705DGKTRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC25705DGKTRG4 | UCC25705DGKTRG4 |
| UCC25705DTR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC25705DTR | |
| UCC25705DTRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC25705DTRG4 | UCC25705DTRG4 |
| UCC25705P | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | UCC25705P | |
| UCC25705PG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | UCC25705PG4 | UCC25705PG4 |
| 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 |
| UCC25705 评估模块 | UCC25705EVM | 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 |