The UC1846/7 family of control ICs provides all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count. The superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters, and the ability to parallel "power modules" while maintaining equal current sharing.
Protection circuitry includes built-in under-voltage lockout and programmable current limit in addition to soft start capability. A shut-down function is also available which can initiate either a complete shutdown with automatic restart or latch the supply off
| UC3846M | |
| Control Method | Current |
| Duty Cycle (Max) (%) | 50 |
| Frequency (Max) (kHz) | 450 |
| UVLO Thresholds On/Off (V) | 7.7/6.95 |
| Pin/Package | 16CDIP |
| Power (Min) (W) | 50 |
| Power (Max) (W) | 1000 |
| Vin (Min) (V) | 7 |
| Vin (Max) (V) | 40 |
| Vout (Min) (V) | 0.5 |
| Regulated Outputs (#) | 2 |
| Operating Temperature Range (C) | 0 to 70 |
| Rating | Military |
| 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 |
| UC3846J | ACTIVE | 0 to 70 | 8.71 | 100u | CDIP (J) | 16 | 1 | TUBE |
| 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 |
| UC3846J | TBD | A42 | N/A for Pkg Type | UC3846J | UC3846J |
| 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 |
