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LM5023MM-2/NOPB PDF预览

LM5023MM-2/NOPB

更新时间: 2024-11-24 11:06:59
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德州仪器 - TI 控制器
页数 文件大小 规格书
30页 2983K
描述
交流/直流准谐振电流模式 PWM 控制器 | DGK | 8 | -40 to 125

LM5023MM-2/NOPB 数据手册

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LM5023  
www.ti.com  
SNVS961C APRIL 2013REVISED AUGUST 2013  
AC-DC Quasi-Resonant Current Mode PWM Controller  
1
FEATURES  
APPLICATIONS  
Critical Conduction Mode  
Universal Input AC-DC Notebook Adapters 10  
W to 65 W  
Peak Current Mode Control Mode  
High Efficiency Housekeeping and Auxiliary  
Power  
Skip Cycle Mode for Low Standby Power  
Hiccup Mode for Continuous Overload  
Protection  
Battery Chargers  
Consumer Electronics (DVD Players, Set-Top  
Boxes, DTV, Gaming, Printers, etc)  
Cycle-by-Cycle Over-Current Protection  
Maintains Accuracy over the Universal AC  
Line  
DESCRIPTION  
Line Current Feed Forward  
The LM5023 is a Quasi-Resonant Pulse Width  
Modulated (PWM) controller which contains all of the  
features needed to implement a highly efficient off-  
line power supply. The LM5023 uses the transformer  
auxiliary winding for demagnetization detection to  
ensure Critical Conduction Mode (CCM) operation.  
The LM5023 features a hiccup mode for over current  
protection with an auto restart to reduce the stress on  
the power components during an overload. A skip  
cycle mode which reduces power consumption at  
light loads for energy conservation applications  
(ENERGY STAR®, CEPCP, etc.). The LM5023 also  
uses the transformer auxiliary winding for output  
overvoltage (OVP) protection, if an OVP fault is  
detected the LM5023 latches off the controller.  
OVP Protection by Sensing the Aux Winding  
Integrated 0.7 A Peak Gate Driver  
Direct Opto-Coupler Interface  
Leading Edge Blanking of Current Sense  
Signal  
Maximum Frequency Clamp 130 kHz  
Programmable Soft Start  
Thermal Shutdown  
8-Pin MSOP Package  
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 © 2013, Texas Instruments Incorporated  

LM5023MM-2/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM5023MMX-2/NOPB TI

完全替代

交流/直流准谐振电流模式 PWM 控制器 | DGK | 8 | -40 to 125

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