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LM5021MMX-1/NOPB PDF预览

LM5021MMX-1/NOPB

更新时间: 2024-11-06 13:01:11
品牌 Logo 应用领域
美国国家半导体 - NSC 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
15页 745K
描述
IC 0.7 A SWITCHING CONTROLLER, 560 kHz SWITCHING FREQ-MAX, PDSO8, MSOP-8, Switching Regulator or Controller

LM5021MMX-1/NOPB 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:TSSOP, TSSOP8,.19Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.17模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:30 V最小输入电压:8 V
标称输入电压:15 VJESD-30 代码:S-PDSO-G8
JESD-609代码:e3长度:3 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:0.7 A
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP8,.19封装形状:SQUARE
封装形式:SMALL OUTLINE, THIN 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:1.09 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:SINGLE最大切换频率:560 kHz
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:3 mmBase Number Matches:1

LM5021MMX-1/NOPB 数据手册

 浏览型号LM5021MMX-1/NOPB的Datasheet PDF文件第2页浏览型号LM5021MMX-1/NOPB的Datasheet PDF文件第3页浏览型号LM5021MMX-1/NOPB的Datasheet PDF文件第4页浏览型号LM5021MMX-1/NOPB的Datasheet PDF文件第5页浏览型号LM5021MMX-1/NOPB的Datasheet PDF文件第6页浏览型号LM5021MMX-1/NOPB的Datasheet PDF文件第7页 
May 2005  
LM5021  
AC-DC Current Mode PWM Controller  
General Description  
Features  
n Ultra Low Start-up Current (25 µA maximum)  
n Current Mode Control  
The LM5021 off-line pulse width modulation (PWM) control-  
ler contains all of the features needed to implement highly  
efficient off-line single-ended flyback and forward power con-  
verters using current-mode control. The LM5021 features  
include an ultra-low (25 µA) start-up current, which mini-  
mizes power losses in the high voltage start-up network. A  
skip cycle mode reduces power consumption with light loads  
for energy conserving applications (ENERGY STAR®,  
CECP, etc.). Additional features include under-voltage lock-  
out, cycle-by-cycle current limit, hiccup mode overload pro-  
tection, slope compensation, soft-start and oscillator syn-  
chronization capability. This high performance 8-pin IC has  
total propagation delays less than 100nS and a 1MHz ca-  
pable oscillator that is programmed with a single resistor.  
n Skip Cycle Mode for Low Standby Power  
n Single Resistor Programmable Oscillator  
n Synchronizable Oscillator  
n Adjustable Soft-start  
n Integrated 0.7A Peak Gate Driver  
n Direct Opto-Coupler Interface  
n Maximum Duty Cycle Limiting (80% for LM5021-1 or  
50% for LM5021-2)  
n Slope Compensation for (LM5021-1 Only)  
n Under Voltage Lockout (UVLO) with Hysteresis  
n Cycle-by-Cycle Over-Current Protection  
n Hiccup Mode for Continuous Overload Protection  
n Leading Edge Blanking of Current Sense Signal  
n
Packages: MSOP-8 or MDIP-8  
Simplified Application Diagram  
20144201  
© 2005 National Semiconductor Corporation  
DS201442  
www.national.com  

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