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MAX4839EXT-T

更新时间： 2024-11-12 22:25:55
品牌 Logo 应用领域
美信 - MAXIM 电源电路电源管理电路光电二极管信息通信管理控制器
页数 文件大小 规格书
10页 228K
描述
Overvoltage Protection Controllers with Status FLAG

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中文翻译

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MAX4839EXT-T 技术参数

是否无铅：含铅是否Rohs认证：不符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：SC-70, 6 PIN针数：6
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.15
Is Samacsys：N可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G6
JESD-609代码：e0长度：2 mm
湿度敏感等级：1信道数量：1
功能数量：1端子数量：6
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装等效代码：TSSOP6,.08封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：245
电源：5 V认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Power Management Circuits
最大供电电流 (Isup)：0.24 mA最大供电电压 (Vsup)：28 V
最小供电电压 (Vsup)：1.2 V标称供电电压 (Vsup)：5 V
表面贴装：YES技术：BICMOS
温度等级：INDUSTRIAL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处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：1.25 mmBase Number Matches：1

MAX4839EXT-T 数据手册

 浏览型号MAX4839EXT-T的Datasheet PDF文件第2页浏览型号MAX4839EXT-T的Datasheet PDF文件第3页浏览型号MAX4839EXT-T的Datasheet PDF文件第4页浏览型号MAX4839EXT-T的Datasheet PDF文件第5页浏览型号MAX4839EXT-T的Datasheet PDF文件第6页浏览型号MAX4839EXT-T的Datasheet PDF文件第7页 
19-3044; Rev 0; 10/03  
Overvoltage Protection Controllers with  
Status FLAG  
General Description  
Features  
The MAX4838–MAX4841 are overvoltage protection ICs  
that protect low-voltage systems against voltages of up  
to 28V. If the input voltage exceeds the overvoltage trip  
level, the MAX4838–MAX4841 turn off the low-cost  
external N-channel FET(s) to prevent damage to the  
protected components. An internal charge pump elimi-  
nates the need for external capacitors and drives the  
FET gate for a simple, robust solution.  
ꢀ Overvoltage Protection Up to 28V  
ꢀ Preset 7.4V or 5.8V Overvoltage Trip Level  
ꢀ Drive Low-Cost NMOS FET  
ꢀ Internal 50ms Startup Delay  
ꢀ Internal Charge Pump  
ꢀ Undervoltage Lockout  
The MAX4838/MAX4839 have a 7.4V overvoltage  
threshold, and the MAX4840/MAX4841 have a 5.8V  
overvoltage threshold. All devices have an undervolt-  
age lockout threshold of 3.25V. In addition to the single  
FET configuration, the devices can be configured with  
back-to-back external FETs to prevent currents from  
being back-driven into the adapter.  
ꢀ 15kV ESD-Protected Input  
ꢀ Voltage Fault FLAG Indicator  
ꢀ 6-Pin SC70 Package  
On power-up, the device waits for 50ms before driving  
GATE high. FLAG is held low for an additional 50ms  
after GATE goes high before deasserting. The  
MAX4838/MAX4840 have an open-drain FLAG output,  
and the MAX4839/MAX4841 have a push-pull FLAG  
output. The FLAG output asserts immediately to an  
overvoltage fault.  
Ordering Information  
PIN-  
PACKAGE  
TOP  
MARK  
PART  
TEMP RANGE  
MAX4838EXT-T  
MAX4839EXT-T  
MAX4840EXT-T  
MAX4841EXT-T  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
6 SC70-6  
6 SC70-6  
6 SC70-6  
6 SC70-6  
ABW  
ABY  
ABX  
ABZ  
Additional features include a 15kV ESD-protected input  
(when bypassed with a 1µF capacitor) and a shutdown  
pin (EN) to turn off the device (MAX4838/MAX4840).  
All devices are offered in a small 6-pin SC70 package  
and are specified for operation from -40°C to +85°C.  
Applications  
Typical Operating Circuit  
Cell Phones  
Digital Still Cameras  
PDAs and Palmtop Devices  
MP3 Players  
INPUT  
+1.2V TO +28V  
OUTPUT  
NMOS  
1
4
3
Selector Guide  
IN  
GATE  
V
IO  
1µF  
OV  
UVLO  
MAX4838–  
MAX4841  
TRIP  
LEVEL  
(V)  
EN  
FLAG  
THRESHOLD  
(V)  
PART  
INPUT OUTPUT  
6
2
EN  
FLAG  
NOTE: EN AND PULLUP  
RESISTOR ON MAX4838/  
MAX4840 ONLY.  
MAX4838EXT-T  
MAX4839EXT-T  
MAX4840EXT-T  
MAX4841EXT-T  
3.25  
3.25  
3.25  
3.25  
7.4  
7.4  
5.8  
5.8  
Yes Open-Drain  
GND  
No  
Yes Open-Drain  
No Push-Pull  
Push-Pull  
Pin Configuration appears at end of data sheet.  
________________________________________________________________ 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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