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LM25116MHX PDF预览

LM25116MHX

更新时间： 2024-11-15 12:02:11
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
36页 1528K
描述
Wide Range Synchronous Buck Controller

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LM25116MHX 技术参数

是否无铅：含铅是否Rohs认证：不符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：HTSSOP, TSSOP20,.25针数：20
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.19
Is Samacsys：N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：42 V最小输入电压：6 V
标称输入电压：24 VJESD-30 代码：R-PDSO-G20
JESD-609代码：e0长度：6.5 mm
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最大输出电流：3.5 A
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装等效代码：TSSOP20,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, 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：1.1 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：PUSH-PULL最大切换频率：590 kHz
温度等级：AUTOMOTIVE端子面层：Tin/Lead (Sn/Pb)
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：NOT SPECIFIED
宽度：4.4 mmBase Number Matches：1

LM25116MHX 数据手册

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LM25116  
www.ti.com  
SNVS509D –APRIL 2007–REVISED FEBRUARY 2013  
Wide Range Synchronous Buck Controller  
Check for Samples: LM25116  
1
FEATURES  
DESCRIPTION  
The LM25116 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 upon current mode control  
utilizing an emulated current ramp. Current mode  
control provides inherent line feed-forward, cycle 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 applications. The  
operating frequency is programmable from 50 kHz to  
1 MHz. The LM25116 drives external high-side and  
low-side NMOS power switches with adaptive dead-  
time control. A user-selectable diode emulation mode  
enables discontinuous 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.  
2
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Emulated peak current mode  
Wide operating range up to 42V  
Low IQ shutdown (< 10 µA)  
Drives standard or logic level MOSFETs  
Robust 3.5A peak gate drive  
Free-run or synchronous operation to 1 MHz  
Optional diode emulation mode  
Programmable output from 1.215V to 36V  
Precision 1.5% voltage reference  
Programmable current limit  
Programmable soft-start  
Programmable line under-voltage lockout  
Automatic switch to external bias supply  
HTSSOP-20 exposed pad  
Thermal shutdown  
Additional features include  
a high voltage bias  
regulator, automatic switch-over to external bias for  
improved efficiency, thermal shutdown, frequency  
synchronization, cycle by cycle current limit and  
adjustable line under-voltage lockout. The device is  
available in a power enhanced HTSSOP-20 package  
featuring an exposed die attach pad to aid thermal  
dissipation.  
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.  
2
All trademarks are the property of their respective owners.  
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 © 2007–2013, Texas Instruments Incorporated  
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LM25116MHX 替代型号

型号 品牌 替代类型 描述 数据表
LM25116MHX/NOPB TI

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