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UC2577T-ADJ PDF预览

UC2577T-ADJ

更新时间: 2024-09-16 03:08:03
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局域网
页数 文件大小 规格书
8页 181K
描述
Simple Step-Up Voltage Regulator

UC2577T-ADJ 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:TO-220, 5 PINReach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:1 week风险等级:8.6
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:40 V最小输入电压:3 V
标称输入电压:5 VJESD-30 代码:R-PSFM-T5
JESD-609代码:e3功能数量:1
端子数量:5最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:6 A
封装主体材料:PLASTIC/EPOXY封装等效代码:SIP5,.1,67TB
封装形状:RECTANGULAR封装形式:FLANGE MOUNT
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
子类别:Switching Regulator or Controllers表面贴装:NO
切换器配置:BOOST最大切换频率:62 kHz
技术:BIPOLAR温度等级:AUTOMOTIVE
端子面层:Matte Tin (Sn)端子形式:THROUGH-HOLE
端子节距:1.7 mm端子位置:SINGLE
处于峰值回流温度下的最长时间:NOT SPECIFIEDBase Number Matches:1

UC2577T-ADJ 数据手册

 浏览型号UC2577T-ADJ的Datasheet PDF文件第2页浏览型号UC2577T-ADJ的Datasheet PDF文件第3页浏览型号UC2577T-ADJ的Datasheet PDF文件第4页浏览型号UC2577T-ADJ的Datasheet PDF文件第5页浏览型号UC2577T-ADJ的Datasheet PDF文件第6页浏览型号UC2577T-ADJ的Datasheet PDF文件第7页 
UC2577-ADJ  
Simple Step-Up Voltage Regulator  
FEATURES  
DESCRIPTION  
Requires Few External Components  
The UC2577-ADJ device provides all the active functions neces-  
sary to implement step-up (boost), flyback, and forward converter  
switching regulators. Requiring only a few components, these sim-  
ple regulators efficiently provide up to 60V as a step-up regulator,  
and even higher voltages as a flyback or forward converter regula-  
tor.  
NPN Output Switches 3.0A, 65V(max)  
Extended Input Voltage Range: 3.0V to 40V  
Current Mode Operation for Improved  
Transient Response, Line Regulation, and  
Current Limiting  
The UC2577-ADJ features a wide input voltage range of 3.0V to  
40V and an adjustable output voltage. An on-chip 3.0A NPN switch  
is included with undervoltage lockout, thermal protection circuitry,  
and current limiting, as well as soft start mode operation to reduce  
current during startup. Other features include a 52kHz fixed fre-  
quency on-chip oscillator with no external components and current  
mode control for better line and load regulation.  
Soft Start Function Provides Controlled  
Startup  
52kHz Internal Oscillator  
Output Switch Protected by Current Limit,  
Undervoltage Lockout and Thermal  
Shutdown  
A standard series of inductors and capacitors are available from  
several manufacturers optimized for use with these regulators and  
are listed in this data sheet.  
Improved Replacement for LM2577-ADJ  
Series  
TYPICAL APPLICATIONS  
CONNECTION DIAGRAM  
Simple Boost and Flyback Converters  
5-Pin TO-220 (Top View)  
T Package  
SEPIC Topology Permits Input Voltage to  
be Higher or Lower than Output Voltage  
Transformer Coupled Forward Regulators  
Multiple Output Designs  
Also available in TO-263 Package (TD).  
BLOCK DIAGRAM  
UDG-94034  
3/97  

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