The UC3844B, UC3845B series are high performance fixed frequency current mode controllers. They are specifically designed for Off−Line and dc−dc converter applications offering the designer a cost−effective solution with minimal external components.

The UC3844B, UC3845B series are high performance fixed frequency current mode controllers. They are specifically designed for Off−Line and dc−dc converter applications offering the designer a cost−effective solution with minimal external components.

The UC284xB 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.

下载UC3845B中文资料、引脚图、Datasheet数据手册，有AC-DC控制器和稳压器详细引脚图及功能的应用电路图电压和使用方法及教程。

olds for the UC3843B and UC3845B are 8.5 V and 7.9 V. The UC3842B and UC3843B can operate to duty cycles approaching 100%. A range of the zero to < 50 % is obtained by the UC3844B and UC3845B by the addition of an internal toggle flip flop which blanks the output off every other clock cycle.

The UC3844B, UC3845B series are high performance fixed frequency current mode controllers. They are specifically designed for Off-Line and dc-to-dc converter applications offering the designer a cost-effective solution with minimal external components.

Part #: UC3845. Download. File Size: 96Kbytes. Page: 11 Pages. Description: CURRENTMODE PWM CONTROLLER. Manufacturer: STMicroelectronics.

TI 的 UC3845 是一款 具有 8.4V/7.6V UVLO 和 50% 占空比、温度范围为 0°C 至 70°C 的单端 500KHz 电流模式 PWM 控制器。 查找参数、订购和质量信息.

2018年1月2日 · UC3845 是高性能固定频率电流模式控制器专为离线和直流至直流变换器应用而设计，为设计人员提供只需最少外部元件就能获得成本效益高的解决方案。 这些集成 电路 具有可微调的振荡器、能进行精确的占空比控制. 前言本人于近期在项目中用到开关电源，故深入探索了开关电源的制作，在这里简单分享一下使用 制作的开关电源，以控制电源的通断。 一、 芯片介绍先介绍 芯片的特点和. 叙述单端反激式原理、电流控制型 优点、 芯片特点,提出了一个实用的高 …

Part #: UC3845B. Download. File Size: 874Kbytes. Page: 7 Pages. Description: Low Start-Up and Operating Current. Manufacturer: Guangdong Youtai Semiconductor Co., Ltd..