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UCC28700DBVR PDF预览

UCC28700DBVR

更新时间： 2024-09-20 12:16:55
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光电二极管
页数 文件大小 规格书
30页 1683K
描述
Constant-Voltage, Constant-Current Controller With Primary-Side Regulation

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UCC28700DBVR 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：LSSOP, TSOP6,.11,37
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.72模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：RESONANT CONTROL
最大输入电压：35 V最小输入电压：9 V
标称输入电压：25 VJESD-30 代码：R-PDSO-G6
JESD-609代码：e4长度：2.9 mm
湿度敏感等级：1功能数量：1
端子数量：6最高工作温度：125 °C
最低工作温度：-20 °C封装主体材料：PLASTIC/EPOXY
封装代码：LSSOP封装等效代码：TSOP6,.11,37
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.45 mm子类别：Switching Regulator or Controllers
标称供电电压 (Vsup)：25 V表面贴装：YES
切换器配置：SINGLE最大切换频率：140 kHz
温度等级：OTHER端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：1.6 mmBase Number Matches：1

UCC28700DBVR 数据手册

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UCC28700, UCC28701  
UCC28702, UCC28703  
www.ti.com  
SLUSB41 – JULY 2012  
Constant-Voltage, Constant-Current Controller  
With Primary-Side Regulation  
Check for Samples: UCC28700, UCC28701, UCC28702, UCC28703  
1
FEATURES  
DESCRIPTION  
The UCC28700 family of flyback power supply  
controllers provides Constant-Voltage (CV) and  
Constant-Current (CC) output regulation without the  
use of an optical coupler. The devices process  
information from the primary power switch and an  
auxiliary flyback winding for precise control of output  
voltage and current. Low start-up current,  
dynamically-controlled operating states and a tailored  
modulation profile support very low stand-by power  
without sacrificing start-up time or output transient  
response.  
•
•
< 30-mW No-Load Power for 5-Star Rating  
Primary-Side Regulation (PSR) Eliminates  
Opto-Coupler  
•
•
±5% Voltage and Current Regulation  
130-kHz Maximum Switching Frequency  
Enables High-Power Density Charger Designs  
•
•
Quasi-Resonant Valley-Switching Operation  
for Highest Overall Efficiency  
Patent-Pending Frequency-Jitter Scheme to  
Ease EMI Compliance  
Control algorithms in the UCC28700 family allow  
operating efficiencies to meet or exceed applicable  
standards. The output drive interfaces to a MOSFET  
power switch. Discontinuous Conduction Mode  
(DCM) with valley switching reduces switching losses.  
Modulation of switching frequency and primary  
current peak amplitude (FM and AM) keeps the  
conversion efficiency high across the entire load and  
line ranges.  
•
•
•
Wide VDD Range Allows Small Bias Capacitor  
Clamped Gate-Drive Output for MOSFET  
Protection Functions: Over-Voltage, Low-Line,  
and Over-Current  
•
•
Programmable Cable Compensation  
(UCC28700 only)  
NTC Resistor Interface (UCC28701, UCC28702  
and UCC28703 only) with Fixed Cable  
Compensation Options  
The controllers have a maximum switching frequency  
of 130 kHz and always maintain control of the peak-  
primary current in the transformer. Protection features  
help keep primary and secondary component  
stresses in check. The UCC28700 allows the level of  
cable compensation to be programmed. The  
UCC28701, UCC28702 and UCC28703 devices allow  
•
SOT23-6 Package  
APPLICATIONS  
•
USB-Compliant Adapters and Chargers for  
Consumer Electronics (cell phones, tablets  
and cameras)  
remote temperature sensing using  
a
Negative  
Temperature Coefficient (NTC) resistor while  
providing fixed cable-compensation levels.  
•
AC and DC Power Supplies  
Simplified Application Diagram and Typical V-I Regulation  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2012, Texas Instruments Incorporated  
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UCC28700DBVR 替代型号

型号 品牌 替代类型 描述 数据表
UCC28700DBVT TI

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 Constant-Voltage, Constant-Current Controller With Primary-Side Regulation

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