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LM5116WG PDF预览

LM5116WG

更新时间: 2024-11-16 05:42:23
品牌 Logo 应用领域
美国国家半导体 - NSC 控制器
页数 文件大小 规格书
26页 1165K
描述
Wide Range Synchronous Buck Controller

LM5116WG 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:CERMIC, PACAGEK-20Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.66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:100 V最小输入电压:6 V
标称输入电压:48 VJESD-30 代码:R-GDSO-G20
JESD-609代码:e0湿度敏感等级:1
功能数量:1端子数量:20
最高工作温度:125 °C最低工作温度:-40 °C
封装主体材料:CERAMIC, GLASS-SEALED封装代码:SOP
封装等效代码:SOP20,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:2.59 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:1000 kHz
温度等级:AUTOMOTIVE端子面层:Tin/Lead (Sn63Pb37)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.62 mmBase Number Matches:1

LM5116WG 数据手册

 浏览型号LM5116WG的Datasheet PDF文件第2页浏览型号LM5116WG的Datasheet PDF文件第3页浏览型号LM5116WG的Datasheet PDF文件第4页浏览型号LM5116WG的Datasheet PDF文件第5页浏览型号LM5116WG的Datasheet PDF文件第6页浏览型号LM5116WG的Datasheet PDF文件第7页 
February 18, 2010  
LM5116WG  
Wide Range Synchronous Buck Controller  
General Description  
Features  
The LM5116WG is a synchronous buck controller intended  
for step-down regulator applications from a high voltage or  
widely varying input supply. The control method is based up-  
on current mode control utilizing an emulated current ramp.  
Current mode control provides inherent line feed-forward, cy-  
cle by cycle current limiting and ease of loop compensation.  
The use of an emulated control ramp reduces noise sensitivity  
of the pulse-width modulation circuit, allowing reliable control  
of very small duty cycles necessary in high input voltage ap-  
plications. The operating frequency is programmable from 50  
kHz to 1 MHz. The LM5116WG drives external high-side and  
low-side NMOS power switches with adaptive dead-time con-  
trol. A user-selectable diode emulation mode enables discon-  
tinuous mode operation for improved efficiency at light load  
conditions. A low quiescent current shutdown disables the  
controller and consumes less than 10 µA of total input current.  
Additional features include a high voltage bias regulator, au-  
tomatic switch-over to external bias for improved efficiency,  
frequency synchronization, cycle by cycle current limit and  
adjustable line under-voltage lockout. The device is available  
in a CERPACK-20 high temperature ceramic package with  
the thermal shutdown feature disabled.  
Hermetic package for harsh operating environments  
Emulated peak current mode  
Wide operating range up to 100V  
Low IQ shutdown (<10µA)  
Drives standard or logic level MOSFETs  
Robust 3.5A peak gate drive  
Free-run or synchronous operation to 1MHz  
Optional diode emulation mode  
Programmable output from 1.215V to 80V  
Precision 1.5% voltage reference  
Programmable current limit  
Programmable soft-start  
Programmable line under-voltage lockout  
Automatic switch to external bias supply  
CERPACK-20 with no thermal shutdown  
Typical Application  
30083101  
© 2010 National Semiconductor Corporation  
300831  
www.national.com  

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