电流模式PWM控制器 Current Mode PWM Controller
**Description**
The UC1842A/3A/4A/5A family of control ICs is a pin for pin compatible improved version of the UC3842/3/4/5 family. Providing the necessary features to control current mode switched mode power supplies, this family has the following improved features. Start up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.
**Features**
频率 450 kHz
电源电压DC 12.0V min
输出接口数 1
输入电压DC 25.0 V
输出电压 5 V
输出电流 1000 A
供电电流 17 mA
耗散功率 1 W
调节输出数 1
上升时间 50 ns
开关频率 500 kHz
拓扑结构 Buck, Boost, Flyback, Forward
占空比 50 %
最大占空比 50 %
下降时间 50 ns
工作温度Max 70 ℃
工作温度Min 0 ℃
耗散功率Max 1000 mW
电源电压 7.6V ~ 30V
安装方式 Through Hole
引脚数 8
封装 PDIP-8
封装 PDIP-8
工作温度 0℃ ~ 70℃ TA
产品生命周期 Active
包装方式 Tube
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
UC3845ANG4 TI 德州仪器 | 当前型号 | 当前型号 |
UC3845AD8 德州仪器 | 类似代替 | UC3845ANG4和UC3845AD8的区别 |
UC3845AN 德州仪器 | 类似代替 | UC3845ANG4和UC3845AN的区别 |
UC2845N 德州仪器 | 类似代替 | UC3845ANG4和UC2845N的区别 |