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LM3488QMMX PDF预览

LM3488QMMX

更新时间: 2024-11-23 12:09:47
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
33页 1355K
描述
High Efficiency Low-Side N-Channel Controller for Switching Regulators

LM3488QMMX 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:MSOP包装说明:MSOP-8
针数:8Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.79Is 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:e0
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认证状态:Not Qualified
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:Tin/Lead (Sn85Pb15)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL宽度:3 mm
Base Number Matches:1

LM3488QMMX 数据手册

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LM3488  
LM3488-Q1  
www.ti.com  
SNVS089M JULY 2000REVISED MARCH 2013  
High Efficiency Low-Side N-Channel Controller for Switching Regulators  
Check for Samples: LM3488, LM3488-Q1  
1
FEATURES  
DESCRIPTION  
The LM3488 is a versatile Low-Side N-FET high  
2
LM3488Q is AEC-Q100 qualified and  
performance controller for switching regulators. It is  
suitable for use in topologies requiring low side FET,  
such as boost, flyback, or SEPIC. Moreover, the  
LM3488 can be operated at extremely high switching  
frequency in order to reduce the overall solution size.  
The switching frequency of LM3488 can be adjusted  
to any value between 100kHz and 1MHz by using a  
single external resistor or by synchronizing it to an  
external clock. 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.  
manufactured on an Automotive Grade Flow  
8-lead VSSOP package  
Internal push-pull driver with 1A peak current  
capability  
Current limit and thermal shutdown  
Frequency compensation optimized with a  
capacitor and a resistor  
Internal softstart  
Current Mode Operation  
Undervoltage Lockout with hysteresis  
The LM3488 has built in 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.  
APPLICATIONS  
Distributed Power Systems  
Notebook, PDA, Digital Camera, and other  
Portable Applications  
Offline Power Supplies  
Set-Top Boxes  
KEY SPECIFICATIONS  
Wide supply voltage range of 2.97V to 40V  
100kHz to 1MHz Adjustable and  
Synchronizable clock frequency  
±1.5% (over temperature) internal reference  
5µA shutdown current (over temperature)  
TYPICAL APPLICATION CIRCUIT  
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.  
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  

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