品牌 | texas instruments | 型号 | uc3851n |
批号 | 2009+ | 封装 | dip |
营销方式 | 现货 | 产品性质 | 热销 |
处理信号 | 数模混合信号 | 工艺 | 半导体集成 |
导电类型 | 单极型 | 集成程度 | 中规模 |
规格尺寸 | 原厂规格(mm) | 工作温度 | 0~70(℃) |
静态功耗 | 原厂规格(mw) |
the uc1851 family of pwm controllers are optimized for off-line primary side control. these devices include a high current totem pole output stage and a toggle flip-flop for absolute 50% duty cycle limiting. in all other respects this line of controllers is pin for pin compatible with the uc1841 series. inclusion of all major housekeeping functions in these high performance controllers makes them ideal for use in cost sensitive applications.
important features of these controllers include low current start-up, linear feed-forward for constant volt-second operation, and compatibility with both voltage or current mode control. in addition, these devices include a programmable start threshold, as well as programmable over-voltage, under-voltage, and over current fault thresholds.