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MAX4842AELT+ PDF预览

MAX4842AELT+

更新时间： 2024-11-13 20:03:59
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理
页数 文件大小 规格书
11页 498K
描述
Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, 1.50 X 1 MM, 0.80 MM HEIGHT, LEAD FREE, MO-252WAAD, MICRO DFN-6

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MAX4842AELT+ 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：SON
包装说明：VSON, SOLCC6,.04,20针数：6
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.15
可调阈值：NO模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-XDSO-N6JESD-609代码：e3
长度：1.5 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：UNSPECIFIED
封装代码：VSON封装等效代码：SOLCC6,.04,20
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, VERY THIN PROFILE
峰值回流温度（摄氏度）：260电源：4 V
认证状态：Not Qualified座面最大高度：0.8 mm
子类别：Power Management Circuits最大供电电流 (Isup)：0.16 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)：4 V表面贴装：YES
技术：BICMOS温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：NO LEAD
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：1 mm
Base Number Matches：1

MAX4842AELT+ 数据手册

 浏览型号MAX4842AELT+的Datasheet PDF文件第2页浏览型号MAX4842AELT+的Datasheet PDF文件第3页浏览型号MAX4842AELT+的Datasheet PDF文件第4页浏览型号MAX4842AELT+的Datasheet PDF文件第5页浏览型号MAX4842AELT+的Datasheet PDF文件第6页浏览型号MAX4842AELT+的Datasheet PDF文件第7页 
19-3979; Rev 0; 2/06  
Overvoltage-Protection Controllers with  
Status FLAG  
General Description  
Features  
The MAX4838A/MAX4840A/MAX4842A 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 MAX4838A/MAX4840A/  
MAX4842A turn off the low-cost external n-channel  
FET(s) to prevent damage to the protected components.  
An internal charge pump eliminates the need for external  
capacitors and drives the FET gate for a simple,  
robust solution.  
♦ Overvoltage Protection Up to +28V  
♦ Preset 7.4V, 5.8V, or 4.7V Overvoltage Trip Level  
♦ Drives Low-Cost nMOS FET  
♦ Internal 50ms Startup Delay  
♦ Internal Charge Pump  
♦ Undervoltage Lockout  
♦ ±±5kV ESD-Protected Input  
♦ Voltage Fault FLAG Indicator  
♦ 6-Pin SC70 and µDFN Packages  
♦ Lead Free  
The MAX4838A has a 7.4V overvoltage threshold, and  
the MAX4840A has a 5.8V overvoltage threshold. The  
MAX4842A has a 4.7V overvoltage threshold. The  
MAX4838A/MAX4840A have an undervoltage-lockout  
(UVLO) threshold of 3.25V, while the MAX4842A has a  
UVLO of 2.5V. In addition to the single FET configura-  
tion, the devices can be configured with back-to-back  
external FETs to prevent currents from being back-dri-  
ven into the adapter.  
Ordering Information  
PIN-  
TOP  
PKG  
PART  
PACKAGE  
MARK  
CODE  
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  
MAX4838A/MAX4840A/MAX4842A have an open-drain  
FLAG output. The FLAG output asserts immediately to  
an overvoltage fault.  
MAX4838AEXT+T  
MAX4838AELT+  
MAX4840AEXT+T  
MAX4840AELT+  
MAX4842AEXT+T  
MAX4842AELT+*  
6 ꢁC70  
6 µSFN  
6 ꢁC70  
6 µSFN  
6 ꢁC70  
6 µSFN  
ACY  
KU  
X6ꢁ-±  
L6±±-±  
X6ꢁ-±  
L6±±-±  
X6ꢁ-±  
L6±±-±  
ACZ  
KV  
ASA  
KW  
Additional features include a ±±5kV (ꢀHM) EꢁS-pro-  
tected input (when bypassed with a ±µF capacitor) and  
a shutdown pin (EN) to turn off the device.  
Note: All devices specified for the -40°C to +85°C extended  
All devices are offered in a small 6-pin ꢁC70 and 6-pin  
±.5mm x ±.0mm µSFN packages and are specified  
over the -40°C to +85°C extended temperature range.  
temperature range.  
*Future product—contact factory for availability.  
+Denotes lead-free package.  
Applications  
Cell Phones  
Typical Operating Circuit  
Sigital ꢁtill Cameras  
PSAs and Palmtop Sevices  
MP3 Players  
INPUT  
+1.2V TO +28V  
OUTPUT  
NMOS  
1
4
3
IN  
GATE  
1µF  
V
IO  
Selector Guide  
MAX4838A  
MAX4840A  
MAX4842A  
OV  
UVLO  
THRESHOLD  
(V)  
TRIP  
LEVEL  
(V)  
EN  
FLAG  
6
2
PART  
EN  
INPUT OUTPUT  
FLAG  
NOTE: EN AND PULLUP  
RESISTOR  
GND  
MAX4838A  
MAX4840A  
MAX4842A  
3.25  
3.25  
2.50  
7.4  
5.8  
4.7  
Yes Open-Srain  
Yes Open-Srain  
Yes Open-Srain  
Pin Configuration appears at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
±
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...11

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