PWM控制器电路

概述：B3842/43/44是专为脱线和Dc-Dc开关电源应用设计的恒频电流型Pwd控制器内部包含温度补偿精密基准、供精密占空比调节用的可调振荡器、高增益混放大器、电流传感比较器和适合作功率MOST驱动用的大电流推挽输出颇以及单周期徊滞式限流欠压锁定、死区可调、单脉冲计数拴锁等保护电路。 • 工作电压范围: ～ 30V\n\n• 基准电压: 5V±2%\n\n• 输出驱动类型: 三极管驱动\n\n• 输出电流（Max）: 1A\n\n• 启动/维持电压: 16V/10V\n\n• 拓扑: 推挽\n\n• 输出通道: 1\n\n• 振荡频率（Max）: 500KHz\n\n• 占空比（Max）: 48%\n\n• 封装形式: SOP8/DIP8;

Silicore

芯谷科技

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

DESCRIPTION The UC384xB family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under volta

文件：239.47 Kbytes 页数：15 Pages

STMICROELECTRONICS

意法半导体

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS

Description GM384XA series is high performance with fixed frequency current mode PWM controllers. They are specially designed for off-Line and DC-to-DC converter applications with minimum external components. These devices feature a trimmed oscillator for precise duty cycle control, a temperature

文件：628.03 Kbytes 页数：19 Pages

GAMMA

CURRENT MODE PWM CONTROLLER

文件：106.89 Kbytes 页数：8 Pages

GAMMA