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.

TI 的 UC3844 是一款 具有 16V/10V 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.

Part #: 3844B. Download. File Size: 343Kbytes. Page: 21 Pages. Description: HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS. Manufacturer: Texas Instruments.

UC3842B、UC3843B 系列为高性能固定频率电流模式控制器。 此类器件专门针对离线和 DC-DC 转换器应用而设计，为设计人员提供了外部部件极少的成本高效方案。 这些集成电路具有振荡器、温度补偿参考、高增益误差放大器、电流传感比较器和高电流图腾柱输出，适用于驱动功率 MOSFET。 还包括了保护功能，有输入和参考欠压锁定且均具有迟滞、按周期电流限制、用于单脉冲计量的锁存，以及每隔一个振荡器周期即对输出进行间隔关断的触发器，可将输出停滞时间 …

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.

LHS 3844 b, formally named Kua'kua[pronunciation?], [2] is an exoplanet orbiting the red dwarf LHS 3844, about 48.5 light-years (14.9 parsecs) away in the constellation Indus, [6] discovered using the Transiting Exoplanet Survey Satellite. It orbits its parent star once every 11 hours, and its radius is 1.32 times that of Earth. [1] .

2024年10月25日 · LHS 3844 b is a super Earth exoplanet that orbits a M-type star. Its mass is 2.25 Earths, it takes 0.5 days to complete one orbit of its star, and is 0.00622 AU from its star. Its discovery was announced in 2019.

3844B PDF技术资料下载 3844B 供应信息 封装选项附录 www.ti.com 6-Dec-2006 包，或2）基于铅的管芯和引线框架之间使用裸片粘合剂。 该组件，否则视为无铅（ RoHS指令 尺寸）的定义同上。

Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5mA, a precision reference …

Part #: 3844B. Description: HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS. File Size: 343.19 Kbytes. Manufacturer: Texas Instruments.