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MAX4785EXS+T

更新时间： 2024-11-26 13:10:39
品牌 Logo 应用领域
美信 - MAXIM 开关
页数 文件大小 规格书
10页 266K
描述
Analog Circuit, 1 Func, BICMOS, PDSO4, EIAJ, SC-70, 4 PIN

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MAX4785EXS+T 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：TSSOP,针数：4
Reach Compliance Code：compliantHTS代码：8542.39.00.01
风险等级：5.09Base Number Matches：1

MAX4785EXS+T 数据手册

 浏览型号MAX4785EXS+T的Datasheet PDF文件第2页浏览型号MAX4785EXS+T的Datasheet PDF文件第3页浏览型号MAX4785EXS+T的Datasheet PDF文件第4页浏览型号MAX4785EXS+T的Datasheet PDF文件第5页浏览型号MAX4785EXS+T的Datasheet PDF文件第6页浏览型号MAX4785EXS+T的Datasheet PDF文件第7页 
19-2664; Rev 1; 4/03  
50mA/100mA Current-Limit Switches  
General Description  
Features  
o Guaranteed Current Limit: 50mA, 100mA  
The MAX4785–MAX4788 family of switches feature inter-  
nal current limiting to prevent host devices from being  
damaged due to faulty load conditions. These analog  
switches have a low 0.7Ω on-resistance and operate  
from a 2.3V to 5.5V input voltage range. They are avail-  
able with guaranteed 50mA and 100mA current limits,  
making them ideal for load-switching applications.  
o Thermal-Shutdown Protection  
o Reverse-Current Protection  
o 0.7Ω On-Resistance  
o 14ms Guaranteed Blanking Time  
o FLAG Function (MAX4785/MAX4787)  
o 65µA Supply Current  
When the switch is on and a load is connected to the  
port, a guaranteed blanking time of 14ms ensures that  
the transient voltages settle down. If after this blanking  
time the load current is greater than the current limit,  
the MAX4785 and MAX4787 enter a latch-off state  
where the switch is turned off and FLAG is issued to the  
microprocessor. The switch can be turned on again by  
cycling the power or the ON pin.  
o 8µA Latch-Off Current (MAX4785/MAX4787)  
o 0.01µA Shutdown Current  
o 2.3V to 5.5V Supply Range  
o Undervoltage Lockout  
The MAX4786 and MAX4788 have an autoretry feature  
where the switch turns off after the blanking time and  
then continuously checks to see if the overload condi-  
tion is present. The switch remains on after the overload  
condition disappears.  
o Fast Current-Limit Response Time  
o Tiny SC70 Package  
Ordering Information  
The MAX4785 and MAX4787 are available in a tiny  
space-saving 4-pin or 5-pin SC70 package. The  
MAX4786 and MAX4788 are available only in the 4-pin  
SC70 package. For higher current current-limiting  
switches, refer to the MAX4789–MAX4794 and  
MAX1693 data sheets.  
PIN-  
PACKAGE  
TOP  
MARK  
PART  
TEMP RANGE  
MAX4785EXS-T  
MAX4785EXK-T  
MAX4786EXS-T  
MAX4787EXS-T  
MAX4787EXK-T  
MAX4788EXS-T  
-40°C to +85°C 4 SC70-4  
-40°C to +85°C 5 SC70-5  
-40°C to +85°C 4 SC70-4  
-40°C to +85°C 4 SC70-4  
-40°C to +85°C 5 SC70-5  
-40°C to +85°C 4 SC70-4  
AGE  
ADL  
AGF  
AGG  
AND  
AGH  
Applications  
PDAs and Palmtop Devices  
Cell Phones  
Selector Guide appears at end of data sheet.  
GPS Systems  
Typical Operating Circuit  
Hand-Held Devices  
2.3V TO 5.5V  
Pin Configurations  
TOP VIEW  
IN  
ON  
OUT  
GND  
1
2
5
4
IN  
OUT  
1
4
3
IN  
µP  
FLAG  
OUT  
MAX4785  
MAX4787  
MAX4785  
MAX4787  
MAX4785–  
MAX4788  
TO EXTERNAL PORT  
FLAG 3  
ON  
GND 2  
ON  
GND  
SC70  
SC70  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...10

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