5秒后页面跳转
捷配首页

Datasheet > 电源电路 > 开关式稳压器或控制器> UC3854
UC3854 PDF预览

UC3854

更新时间： 2024-11-01 22:39:59
品牌 Logo 应用领域
德州仪器 - TI 功率因数校正控制器
页数 文件大小 规格书
32页 553K
描述
ADVANCED PFC/PWW COMBINATION CONTROLLER WITH TRAILING-EDGE/TRAILING-EDGE MODULATION

阅读下载

中文翻译

获取价格

UC3854 数据手册

 浏览型号UC3854的Datasheet PDF文件第2页浏览型号UC3854的Datasheet PDF文件第3页浏览型号UC3854的Datasheet PDF文件第4页浏览型号UC3854的Datasheet PDF文件第5页浏览型号UC3854的Datasheet PDF文件第6页浏览型号UC3854的Datasheet PDF文件第7页 
ꢀ
ꢁ
ꢁ
ꢂ
ꢃ
ꢄ
ꢂ
ꢅ
ꢆ
ꢀ
ꢁ
ꢁ
ꢂ
ꢃ
ꢄ
ꢂ
ꢃ
SLUS608B − JANUARY 2005 REVISED JUNE 2005  
ꢇ
ꢈ
ꢔ
ꢉ
ꢗ
ꢇ
ꢔ
ꢊ
ꢕ
ꢁ
ꢇ
ꢋ
ꢈ
ꢓ
ꢌ
ꢍ
ꢁ
ꢎ
ꢌ
ꢈ
ꢏ
ꢐ
ꢎ
ꢁ
ꢑ
ꢇ
ꢐ
ꢒ
ꢓ
ꢓ
ꢊ
ꢊ
ꢘ
ꢇ
ꢙ
ꢔ
ꢋ
ꢓ
ꢈ
ꢑ
ꢘ
ꢊ
ꢋ
ꢁ
ꢐ
ꢑ
ꢑ
ꢊ
ꢈ
ꢔ
ꢕ
ꢀ
ꢑ
ꢖ
ꢔ
ꢖ
ꢓ
ꢋ
ꢑ
ꢕ
ꢊ
ꢏ
ꢓ
ꢓ
ꢖ
ꢊ
ꢘ
ꢙ
ꢋ
ꢘ
ꢋ
ꢔ
ꢕ
ꢓ
ꢖ
ꢖ
ꢇ
FEATURES  
DESCRIPTION  
The UCC28521 and UCC28528 combination  
PFC/PWM controllers provide complete control  
functionality for any off-line power system  
requiring compliance with the IEC1000−3−2  
harmonic reduction requirements. By combining  
the control and drive signals for the PFC and the  
PWM stages into a single device, significant  
performance and cost benefits are gained.  
D
D
D
D
D
Provides Control of PFC and PWM Power  
Stages In One Device  
Trailing-Edge PFC, Trailing-Edge PWM  
Modulation  
Built-In Sequencing of PFC and PWM  
Turn-On  
Based on the UCC28511, the new devices employ  
an average current mode control architecture with  
input voltage feedforward. The major difference of  
2-A Source and 3-A Sink Gate Drive for Both  
PFC and PWM Stages  
the UCC28521/28 is the trailing-edge  
/
Typical 16-ns Rise Time and 7-ns Fall Time  
into 1-nF Loads  
trailing-edge (TEM/TEM) modulation scheme for  
the PFC/PWM stages. The UCC28528 differs  
from the UCC28521 as its PWM stage does not  
turn off with the falling bulk voltage. The  
UCC28528 PWM was designed for low power  
auxiliary supplies.  
PFC Features  
− Average-Current-Mode Control for  
Continuous Conduction Mode Operation  
− Highly-Linear Multiplier for Near-Unity  
Power Factor  
− Input Voltage Feedforward Implementation  
− Improved Load Transient Response  
− Accurate Power Limiting  
These devices offer performance advantages  
over earlier generation combination controllers. A  
key PWM feature is programmable maximum duty  
cycle. For the PFC stage, the devices feature an  
improved multiplier and the use of  
a
− Zero Power Detect  
transconductance amplifier for enhanced  
transient response.  
PWM Features  
The core of the PFC section is in a three-input  
multiplier that generates the reference signal for  
the line current. The UCC28521/28 features a  
highly linearized multiplier circuit capable of  
producing a low distortion reference for the line  
current over the full range of line and load  
conditions. A low-offset, high-bandwidth current  
error amplifier ensures that the actual inductor  
current (sensed through a resistor in the return  
path) follows the multiplier output command  
signal. The output voltage error is processed  
through a transconductance voltage amplifier.  
− Peak-Current-Mode Control Operation  
− 1:1 PFC:PWM Frequency Option  
− Programmable maximum Duty Cycle Limit  
Up to 90%  
− Programmable Soft-Start  
APPLICATIONS  
D
D
High-Efficiency Server and DesktopSupplies  
High-Efficiency Telecom AC-DC Converter  
AVAILABLE APPLICATION OPTIONS  
PART NUMBER  
PWM STAGE  
APPLICATION  
UCC28521  
UCC28528  
PWM shuts off at 71% of the nomonal bulk voltage  
PWM does not turn off with falling bulk voltage  
ac−dc and main dc−dc converter  
ac−dc and standby converter  
ꢌ
ꢌ
ꢕ
ꢑ
ꢩ
ꢈ
ꢤ
ꢀ
ꢁ
ꢢ
ꢔ
ꢣ
ꢓ
ꢝ
ꢑ
ꢛ
ꢊ
ꢜ
ꢈ
ꢇ
ꢔ
ꢇ
ꢚ
ꢛ
ꢥ
ꢜ
ꢝ
ꢣ
ꢞ
ꢟ
ꢠ
ꢠ
ꢡ
ꢡ
ꢚ
ꢚ
ꢝ
ꢝ
ꢛ
ꢛ
ꢚ
ꢢ
ꢢ
ꢦ
ꢣ
ꢤ
ꢞ
ꢞ
ꢥ
ꢥ
ꢛ
ꢡ
ꢠ
ꢟ
ꢢ
ꢢ
ꢝ
ꢜ
ꢦ
ꢔꢥ  
ꢤ
ꢧ
ꢢ
ꢨ
ꢚ
ꢣ
ꢠ
ꢢ
ꢡ
ꢚ
ꢡ
ꢝ
ꢞ
ꢛ
ꢤ
ꢩ
ꢠ
ꢛ
ꢡ
ꢡ
ꢥ
ꢢ
ꢪ
Copyright 2005, Texas Instruments Incorporated  
ꢞ
ꢝ
ꢣ
ꢡ
ꢝ
ꢞ
ꢟ
ꢡ
ꢝ
ꢢ
ꢦ
ꢚ
ꢜ
ꢚ
ꢣ
ꢥ
ꢞ
ꢡ
ꢫ
ꢡ
ꢥ
ꢞ
ꢝ
ꢜ
ꢬ
ꢠ
ꢓ
ꢛ
ꢟ
ꢥ
ꢢ
ꢡ
ꢠ
ꢛ
ꢩ
ꢠ
ꢞ
ꢩ
ꢭ
ꢠ
ꢡ ꢥ ꢢ ꢡꢚ ꢛꢯ ꢝꢜ ꢠ ꢨꢨ ꢦꢠ ꢞ ꢠ ꢟ ꢥ ꢡ ꢥ ꢞ ꢢ ꢪ  
ꢞ
ꢞ
ꢠ
ꢛ
ꢡ
ꢮ
ꢪ
ꢌ
ꢞ
ꢝ
ꢩ
ꢤ
ꢣ
ꢡ
ꢚ
ꢝ
ꢛ
ꢦ
ꢞ
ꢝ
ꢣ
ꢥ
ꢢ
ꢢ
ꢚ
ꢛ
ꢯ
ꢩ
ꢝ
ꢥ
ꢢ
ꢛ
ꢝ
ꢡ
ꢛ
ꢥ
ꢣ
ꢥ
ꢢ
ꢢ
ꢠꢞ  
ꢚ
ꢨ
ꢮ
ꢚ
ꢛ
ꢣ
ꢨ
ꢤ
ꢩ
ꢥ
1
www.ti.com  
1234567...32

中文翻译

下载PDF

UC3854 替代型号

型号 品牌 替代类型 描述 数据表
UC1854 TI

功能相似

 High Power Factor Preregulator
UC2854 TI

功能相似

 HIgh Power Factor Preregulator

与UC3854相关器件

型号 品牌 获取价格 描述 数据表
UC3854A TI

获取价格

 		Enhanced High Power Factor Preregulator
UC3854A/B TI

获取价格

 		ADVANCED PFC/PWW COMBINATION CONTROLLER WITH TRAILING-EDGE/TRAILING-EDGE MODULATION
UC3854ADW TI

获取价格

 		ADVANCED HIGH-POWER FACTOR PREREGULATOR
UC3854ADWG4 TI

获取价格

 		ADVANCED HIGH-POWER FACTOR PREREGULATOR
UC3854ADWTR TI

获取价格

 		Power Factor Controller
UC3854ADWTRG4 TI

获取价格

 		ADVANCED HIGH-POWER FACTOR PREREGULATOR
UC3854AJ TI

获取价格

 		Analog IC
UC3854AL TI

获取价格

 		Analog IC
UC3854AN TI

获取价格

 		ADVANCED HIGH-POWER FACTOR PREREGULATOR
UC3854ANG4 TI

获取价格

 		ADVANCED HIGH-POWER FACTOR PREREGULATOR

与UC3854相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证