UC3854J

更新时间： 2024-11-01 22:52:43

品牌	Logo	应用领域
德州仪器 - TI		稳压器开关式稳压器或控制器电源电路开关式控制器
页数	文件大小	规格书
9页	283K
描述
High Power Factor Preregulator

阅读下载

中文翻译

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

UC3854J 技术参数

生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	CERAMIC, DIP-16	针数：	16
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.15
Is Samacsys：	N	模拟集成电路 - 其他类型：	POWER FACTOR CONTROLLER
控制模式：	CURRENT-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	35 V	最小输入电压：	15 V
标称输入电压：	18 V	JESD-30 代码：	R-CDIP-T16
功能数量：	1	端子数量：	16
最高工作温度：	70 °C	最低工作温度：
最大输出电流：	0.5 A	封装主体材料：	CERAMIC, METAL-SEALED COFIRED
封装代码：	DIP	封装形状：	RECTANGULAR
封装形式：	IN-LINE	认证状态：	Not Qualified
座面最大高度：	5.08 mm	表面贴装：	NO
切换器配置：	BOOST	最大切换频率：	200 kHz
温度等级：	COMMERCIAL	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
宽度：	7.62 mm	Base Number Matches：	1

UC3854J 数据手册

UC1854

UC2854

UC3854

High Power Factor Preregulator

FEATURES

DESCRIPTION

•

Control Boost PWM to 0.99 Power Factor

The UC1854 provides active power factor correction for power sys-

tems that otherwise would draw non-sinusoidal current from sinusoi-

dal power lines. This device implements all the control functions

necessary to build a power supply capable of optimally using available

power-line current while minimizing line-current distortion. To do this,

the UC1854 contains a voltage amplifier, an analog multiplier/divider,

a current amplifier, and a fixed-frequency PWM. In addition, the

UC1854 contains a power MOSFET compatible gate driver, 7.5V ref-

erence, line anticipator, load-enable comparator, low-supply detector,

and over-current comparator.

Limit Line Current Distortion To <5%

World-Wide Operation Without Switches

Feed-Forward Line Regulation

Average Current-Mode Control

Low Noise Sensitivity

Low Start-Up Supply Current

Fixed-Frequency PWM Drive

Low-Offset Analog Multiplier/Divider

1A Totem-Pole Gate Driver

The UC1854 uses average current-mode control to accomplish fixed-

frequency current control with stability and low distortion. Unlike peak

current-mode, average current control accurately maintains sinusoidal

line current without slope compensation and with minimal response to

noise transients.

The UC1854’s high reference voltage and high oscillator amplitude

minimize noise sensitivity while fast PWM elements permit chopping

frequencies above 200kHz. The UC1854 can be used in single and

three phase systems with line voltages that vary from 75 to 275 volts

and line frequencies across the 50Hz to 400Hz range. To reduce the

burden on the circuitry that supplies power to this device, the UC1854

features low starting supply current.

Precision Voltage Reference

These devices are available packaged in 16-pin plastic and ceramic

dual in-line packages, and a variety of surface-mount packages.

BLOCK DIAGRAM

UDG-92055

6/98

12 3 4 5 6 7...9

中文翻译

下载PDF

与UC3854J相关器件

型号	品牌	获取价格	描述	数据表
UC3854L	TI	获取价格	High Power Factor Preregulator
UC3854N	TI	获取价格	High Power Factor Preregulator
UC3854N-F	TI	获取价格	High Power Factor Preregulator
UC3854NG4	TI	获取价格	High Power Factor Preregulator
UC3854Q	TI	获取价格	High Power Factor Preregulator
UC3854QG3	TI	获取价格	High Power Factor Preregulator
UC3854QTR	TI	获取价格	High Power Factor Preregulator
UC3854QTRG3	TI	获取价格	High Power Factor Preregulator
UC3855A	TI	获取价格	High Performance Power Factor Preregulator
UC3855A/B	TI	获取价格	ADVANCED PFC/PWW COMBINATION CONTROLLER WITH TRAILING-EDGE/TRAILING-EDGE MODULATION

与UC3854J相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

4
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

2
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

23
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

24

产品中心

服务支持

精选活动

关于我们

帮助中心

UC3854J

UC3854J 技术参数

UC3854J 数据手册

与UC3854J相关器件

与UC3854J相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

UC3854J

UC3854J 技术参数

UC3854J 数据手册

与UC3854J相关器件

与UC3854J相关文章

您还可以找

您在本页遇到什么问题？