高速PWM控制器 High Speed PWM Controller
DESCRIPON
The UC3823A and UC3823B and the UC3825A and UC3825B family of PWM controllers are improved
versions of the standard UC3823 and UC3825 family. Performance enhancements have been made to several of the circuit blocks. Error amplifier gain bandwidth product is 12 MHz, while input offset voltage is 2 mV. Current limit threshold is assured to a tolerance of 5%.
FEATURES
Improved Versions of the UC3823/UC3825 PWMs
Compatible with Voltage-Mode or Current-Mode Control Methods
Practical Operation at Switching Frequencies to 1 MHz
50-ns Propagation Delay to Output
High-Current Dual Totem Pole Outputs 2-A Peak
Trimmed Oscillator Discharge Current
Low 100-μA Startup Current
Pulse-by-Pulse Current Limiting Comparator
Latched Overcurrent Comparator With Full Cycle Restart
频率 1.00 MHz
电源电压DC 12.0V min
输出接口数 1
输出电压 2.00 V
输出电流 2 A
调节输出数 1
上升时间 20 ns
开关频率 400kHz ~ 1MHz
拓扑结构 Buck, Boost, Flyback, Forward
占空比 100 %
最大占空比 100 %
下降时间 20 ns
工作温度Max 85 ℃
工作温度Min -40 ℃
安装方式 Surface Mount
引脚数 20
封装 PLCC-20
封装 PLCC-20
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Tube
RoHS标准 Non-Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
UC2823AQ TI 德州仪器 | 当前型号 | 当前型号 |
UC2823Q 德州仪器 | 类似代替 | UC2823AQ和UC2823Q的区别 |
UC3823QTR 德州仪器 | 类似代替 | UC2823AQ和UC3823QTR的区别 |
UC3823QG3 德州仪器 | 类似代替 | UC2823AQ和UC3823QG3的区别 |