5秒后页面跳转
LM3481QMM/NOPB PDF预览

LM3481QMM/NOPB

更新时间: 2024-11-23 13:09:23
品牌 Logo 应用领域
德州仪器 - TI 开关控制器
页数 文件大小 规格书
30页 1132K
描述
48V Wide Vin High-Efficiency Controller for Boost, SEPIC and Flyback DC-DC Converters 10-VSSOP -40 to 125

LM3481QMM/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:MSOP
包装说明:TSSOP,针数:10
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:16 weeks
风险等级:1.58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:48 V最小输入电压:2.97 V
标称输入电压:12 VJESD-30 代码:S-PDSO-G10
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:10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:1.275 V
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
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座面最大高度:1.09 mm
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:0.5 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

LM3481QMM/NOPB 数据手册

 浏览型号LM3481QMM/NOPB的Datasheet PDF文件第2页浏览型号LM3481QMM/NOPB的Datasheet PDF文件第3页浏览型号LM3481QMM/NOPB的Datasheet PDF文件第4页浏览型号LM3481QMM/NOPB的Datasheet PDF文件第5页浏览型号LM3481QMM/NOPB的Datasheet PDF文件第6页浏览型号LM3481QMM/NOPB的Datasheet PDF文件第7页 
LM3481  
www.ti.com  
SNVS346E NOVEMBER 2007REVISED APRIL 2012  
LM3481/LM3481Q High Efficiency Low-Side N-Channel Controller for Switching  
Regulators  
Check for Samples: LM3481  
1
FEATURES  
KEY SPECIFICATIONS  
2
LM3481QMM in the VSSOP-10 Package are  
Automotive Grade Products that are AEC-Q100  
Grade 1 Qualified (-40°C to +125°C Operating  
Junction Temperature)  
Wide Supply Voltage Range of 2.97V to 48V  
100 kHz to 1 MHz Adjustable and  
Synchronizable Clock Frequency  
±1.5% (Over Temperature) Internal Reference  
10 µA Shutdown Current (Over Temperature)  
10-Lead VSSOP Package  
Internal Push-Pull Driver with 1A Peak Current  
Capability  
DESCRIPTION  
Current Limit and Thermal Shutdown  
The LM3481 is a versatile Low-Side N-FET high  
performance controller for switching regulators. It is  
suitable for use in topologies requiring a low-side  
FET, such as boost, flyback, SEPIC, etc. The  
LM3481 can be operated at extremely high switching  
frequencies in order to reduce the overall solution  
size. The switching frequency of the LM3481 can be  
adjusted to any value between 100 kHz and 1 MHz  
by using a single external resistor or by synchronizing  
it to an external clock. Current mode control provides  
superior bandwidth and transient response in addition  
to cycle-by-cycle current limiting. Current limit can be  
programmed with a single external resistor.  
Frequency Compensation Optimized with a  
Capacitor and a Resistor  
Internal Softstart  
Current Mode Operation  
Adjustable Undervoltage Lockout with  
Hysteresis  
Pulse Skipping at Light Loads  
APPLICATIONS  
Distributed Power Systems  
The LM3481 has built in protection features such as  
thermal shutdown, short-circuit protection and over  
voltage protection. 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.  
Notebook, PDA, Digital Camera, and other  
Portable Applications  
Offline Power Supplies  
Set-Top Boxes  
TYPICAL APPLICATION CIRCUIT  
R7  
V
IN  
= 3.0V to 48V  
+
C
IN  
R8  
L1  
V
IN  
I
SEN  
V
= 5V, 1A  
OUT  
OUT  
UVLO  
V
CC  
C
C
R
C
C
BYP  
C
D1  
+
S
COMP LM3481  
DR  
C
Q1  
L2  
FB  
PGND  
R
F2  
AGND  
FA/SYNC/SD  
C
R
SEN  
SEN  
R
FA  
R
F1  
Figure 1. Typical SEPIC 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.  
All trademarks are the property of their respective owners.  
2
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 © 2007–2012, Texas Instruments Incorporated  

LM3481QMM/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM3481QMMX/NOPB TI

类似代替

符合 AEC-Q100 标准的 2.97V 至 48V 高效升压、SEPIC 和反激式控制

与LM3481QMM/NOPB相关器件

型号 品牌 获取价格 描述 数据表
LM3481QMMX TI

获取价格

LM3481/LM3481Q High Efficiency Low-Side N-Channel Controller for Switching
LM3481QMMX/NOPB TI

获取价格

符合 AEC-Q100 标准的 2.97V 至 48V 高效升压、SEPIC 和反激式控制
LM3485 TI

获取价格

Hysteretic PFET Buck Controller
LM3485 NSC

获取价格

Hysteretic PFET Buck Controller
LM3485_14 TI

获取价格

Hysteretic PFET Buck Controller
LM3485EVAL TI

获取价格

LM3485 Hysteretic PFET Buck Controller
LM3485MDC NSC

获取价格

IC,SMPS CONTROLLER,VOLTAGE-MODE,DIE
LM3485MM NSC

获取价格

Hysteretic PFET Buck Controller
LM3485MM TI

获取价格

Hysteretic PFET Buck Controller
LM3485MM/NOPB NSC

获取价格

IC SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MSOP-8, Switching Re