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LM3478MM/NOPB PDF预览

LM3478MM/NOPB

更新时间: 2024-11-21 12:27:39
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
32页 1398K
描述
High-Efficiency Low-Side N-Channel Controller for Switching Regulator

LM3478MM/NOPB 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active零件包装代码:SOIC
包装说明:VSSOP-8针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:0.68Samacsys Confidence:3
Samacsys Status:ReleasedSamacsys PartID:155783
Samacsys Pin Count:8Samacsys Part Category:Integrated Circuit
Samacsys Package Category:Small Outline PackagesSamacsys Footprint Name:DGK (S-PDSO-G8)
Samacsys Released Date:2015-04-16 09:48:08Is 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:40 V
最小输入电压:2.97 V标称输入电压:12 V
JESD-30 代码:S-PDSO-G8JESD-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:1 A最大输出电压:500 V
最小输出电压:1.26 V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:1.1 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: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:NOT SPECIFIED宽度:3 mm
Base Number Matches:1

LM3478MM/NOPB 数据手册

 浏览型号LM3478MM/NOPB的Datasheet PDF文件第2页浏览型号LM3478MM/NOPB的Datasheet PDF文件第3页浏览型号LM3478MM/NOPB的Datasheet PDF文件第4页浏览型号LM3478MM/NOPB的Datasheet PDF文件第5页浏览型号LM3478MM/NOPB的Datasheet PDF文件第6页浏览型号LM3478MM/NOPB的Datasheet PDF文件第7页 
LM3478  
LM3478-Q1  
www.ti.com  
SNVS085V JULY 2000REVISED FEBRUARY 2013  
High-Efficiency Low-Side N-Channel Controller for Switching Regulator  
Check for Samples: LM3478, LM3478-Q1  
1
FEATURES  
APPLICATIONS  
2
LM3478Q in VSSOP-8 package is AEC-Q100  
qualified and manufactured on an Automotive  
Grade Flow  
Distributed Power Systems  
Battery Chargers  
Offline Power Supplies  
Telecom Power Supplies  
Automotive Power Systems  
8-lead VSSOP-8 and SOIC-8 packages  
Internal push-pull driver with 1A peak current  
capability  
Current limit and thermal shutdown  
KEY SPECIFICATIONS  
Frequency compensation optimized with a  
capacitor and a resistor  
Wide supply voltage range of 2.97V to 40V  
100kHz to 1MHz Adjustable clock frequency  
±2.5% (over temperature) internal reference  
10µA shutdown current (over temperature)  
Internal soft start  
Current Mode Operation  
Undervoltage Lockout with hysteresis  
DESCRIPTION  
The LM3478 is a versatile Low-Side N-Channel MOSFET controller for switching regulators. It is suitable for use  
in topologies requiring a low side MOSFET, such as boost, flyback, SEPIC, etc. Moreover, the LM3478 can be  
operated at extremely high switching frequency in order to reduce the overall solution size. The switching  
frequency of the LM3478 can be adjusted to any value between 100kHz and 1MHz by using a single external  
resistor. Current mode control provides superior bandwidth and transient response, besides cycle-by-cycle  
current limiting. Output current can be programmed with a single external resistor.  
The LM3478 has built in features such as thermal shutdown, short-circuit protection, over voltage protection, etc.  
Power saving shutdown mode reduces the total supply current to 5µA and allows power supply sequencing.  
Internal soft-start limits the inrush current at start-up.  
Typical Application Circuit  
Figure 1. Typical High Efficiency Step-Up (Boost) Converter  
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 © 2000–2013, Texas Instruments Incorporated  

LM3478MM/NOPB 替代型号

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LM3478MMX/NOPB TI

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High-Efficiency Low-Side N-Channel Controller for Switching Regulator
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