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MAX747CSD+T PDF预览

MAX747CSD+T

更新时间: 2024-01-07 15:29:49
品牌 Logo 应用领域
美信 - MAXIM 控制器
页数 文件大小 规格书
12页 138K
描述
Switching Controller, Current-mode, 3A, 100kHz Switching Freq-Max, CMOS, PDSO14, 0.150 INCH, PLASTIC, SO-14

MAX747CSD+T 技术参数

是否Rohs认证:符合生命周期:Obsolete
零件包装代码:SOIC包装说明:0.150 INCH, PLASTIC, SO-14
针数:14Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.73Is 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:15 V
最小输入电压:4 VJESD-30 代码:R-PDSO-G14
JESD-609代码:e3长度:8.65 mm
湿度敏感等级:1功能数量:1
端子数量:14最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:3 A
标称输出电压:5 V封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP14,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Switching Regulator or Controllers
最大供电电流 (Isup):1.3 mA表面贴装:YES
切换器配置:SINGLE最大切换频率:100 kHz
技术:CMOS温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)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:3.9 mm
Base Number Matches:1

MAX747CSD+T 数据手册

 浏览型号MAX747CSD+T的Datasheet PDF文件第2页浏览型号MAX747CSD+T的Datasheet PDF文件第3页浏览型号MAX747CSD+T的Datasheet PDF文件第4页浏览型号MAX747CSD+T的Datasheet PDF文件第5页浏览型号MAX747CSD+T的Datasheet PDF文件第6页浏览型号MAX747CSD+T的Datasheet PDF文件第7页 
19-0171; Rev 1; 9/93  
Hig h -Effic ie n c y P WM, S t e p -Do w n  
P -Ch a n n e l DC-DC Co n t ro lle r  
MAX47  
_______________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
The MAX747 high-efficiency, high-current, step-down  
controller drives external P-channel FETs. It provides  
90% to 95% e ffic ie nc y from a 6V s up p ly with loa d  
c urre nts ra ng ing from 50mA up to 2.5A. It us e s a  
pulse-width-modulating (PWM) current-mode control  
scheme to provide precise output regulation and low  
output noise. The MAX747s 4V to 15V input voltage  
range, a fixed 5V/adjustable (Dual-Mode) output, and  
a current limit set with an external resistor make this  
device ideal for a wide range of applications.  
90% to 95% Efficiency for 50mA to 2.5A  
Output Currents  
4V to 15V Input Voltage Range  
Low 800µA Supply Current  
0.6µA Shutdown Current  
Drives External P-Channel FETs  
Cycle-by-Cycle Current Limiting  
2V ±1.5% Accurate Reference Output  
Adjustable Soft-Start  
High efficiency is maintained with light loads due to a  
prop rie ta ry d ua l-c ontrol (Idle -Mode ) sc he me tha t  
minimizes switching losses by reducing the switching  
fre q ue nc y a t lig ht loa d s . The low 800µA q uie s c e nt  
current and ultra-low 0.6µA shutdown current further  
extend battery life.  
Precision Comparator for Power-Fail or  
Low-Battery Warning  
______________Ord e rin g In fo rm a t io n  
PART  
TEMP. RANGE  
PIN-PACKAGE  
14 Plastic DIP  
14 Narrow SO  
Dice*  
External components are protected by the MAX747s  
cycle-by-cycle current limit. The MAX747 also features a  
2V ± 1.5% re fe re nc e , a c omp a ra tor for low-b a tte ry  
detection or level translating, as well as soft-start and  
shutdown capability.  
MAX747CPD  
MAX747CSD  
MAX747C/D  
MAX747EPD  
MAX747ESD  
MAX747MJD  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
-40°C to +85°C  
-40°C to +85°C  
-55°C to +125°C  
14 Plastic DIP  
14 Narrow SO  
14 CERIDIP  
The MAX746, d is c us s e d in a s e p a ra te d a ta s he e t,  
functions similarly to the MAX747, but it drives N-channel  
logic level FETs on the high side.  
* Contact factory for dice specifications.  
__________Typ ic a l Op e ra t in g Circ u it  
________________________Ap p lic a t io n s  
Notebook Power Supplies  
INPUT  
6V TO 15V  
Personal Digital Assistants  
Battery-Operated Equipment  
Cellular Phones  
V+  
AV+  
100µF  
5V to 3.3V Green PC Applications  
5Om  
MAX747  
CS  
OUTPUT  
5V  
2.3A  
__________________P in Co n fig u ra t io n  
ON/OFF  
5OµH  
SHDN  
EXT  
P
TOP VIEW  
430µF  
LBI  
LBO  
GND  
1
2
3
4
5
6
7
OUT  
14  
13  
12  
11  
10  
9
LOW-BATTERY  
DETECTOR  
INPUT  
LBI  
0.1µF  
SS  
REF  
MAX747  
V+  
LOW-BATTERY  
DETECTOR  
OUTPUT  
EXT  
AGND  
LBO  
SHDN  
FB  
REF  
SS CC FB AGND GND  
CC  
CS  
OUT  
AV+  
8
DIP/SO  
™ Dual-Mode and Idle-Mode are trademarks of Maxim Integrated Products.  
________________________________________________________________ Maxim Integrated Products  
1
Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .  

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