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NCP391

更新时间： 2024-11-10 12:22:47
品牌 Logo 应用领域
安森美 - ONSEMI 控制器
页数 文件大小 规格书
12页 305K
描述
Positive Overvoltage Protection Controller with Internal Low RON NMOS FET

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NCP391 数据手册

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NCP391  
Positive Overvoltage  
Protection Controller with  
Internal Low RON NMOS FET  
The NCP391 is able to disconnect the systems from its output pin  
when wrong input operating conditions are detected. The system is  
positive overvoltage protected up to +28 V.  
This device uses an internal NMOS and therefore, no external  
device is necessary, reducing the system cost and the PCB area of the  
application board.  
http://onsemi.com  
MARKING  
DIAGRAM  
The NCP391 is able to instantaneously disconnect the output from  
WLCSP6  
FC SUFFIX  
CASE 499BP  
XXXXG  
the input, due to integrated Low R  
Power NMOS, if the input  
ON  
AYWW  
voltage exceeds the overvoltage threshold (OVLO) or falls below the  
undervoltage threshold (UVLO).  
XXXX = Specific Device Code  
At powerup (EN pin = low level), the V turns on t time after  
out  
on  
A
Y
= Assembly Location  
= Year  
the V exceeds the undervoltage threshold.  
in  
The NCP391 provides a negative going flag (FLAG) output, which  
alerts the system that a fault has occurred.  
In addition, the device has ESD−protected input (15 kV Air) when  
bypassed with a 1.0 mF or larger capacitor.  
WW = Work Week  
G
= Pb−Free Package  
PIN CONNECTIONS  
Features  
• Overvoltage Protection up to 28 V  
IN  
1
EN  
6
IN  
A1  
EN  
B1  
• On−Chip Low R  
NMOS Transistor  
DS(on)  
• Internal Charge Pump  
IN  
2
GND  
5
IN  
A2  
GND  
B2  
or  
• Overvoltage Lockout (OVLO)  
• Undervoltage Lockout (UVLO)  
• Soft−Start  
OUT  
3
FLAG  
4
OUT  
A3  
FLAG  
B3  
• Alert FLAG Output  
• Shutdown EN Input  
(Top View)  
(Top View)  
• Compliance to IEC61000−4−2 (Level 4)  
8.0 kV (Contact)  
15 kV (Air)  
ORDERING INFORMATION  
See detailed ordering, marking and shipping information in the  
package dimensions section on page 11 of this data sheet.  
• ESD Ratings: Machine Model = B  
Human Body Model = 2  
• WLCSP6 1.31x1.04 mm Package  
• This is a Pb−Free Device  
Applications  
• Cell Phones  
• Camera Phones  
• Digital Still Cameras  
• Personal Digital Applications  
• MP3 Players  
©
Semiconductor Components Industries, LLC, 2011  
1
Publication Order Number:  
August, 2011 − Rev. 1  
NCP391/D  
1234567...12

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