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ON Semiconductor - Positive and Negative Overvoltage Protection Controller

Numéro de référence NCP372
Description Positive and Negative Overvoltage Protection Controller
Fabricant ON Semiconductor 
Logo ON Semiconductor 





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NCP372 fiche technique
NCP372
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Positive and Negative
Overvoltage Protection
Controller with Internal
Low Ron NMOS FETs and
Status FLAG
The NCP372 is able to disconnect systems from its output pin
when wrong operating conditions are detected at it’s input. The
system is both positive and negative overvoltage protected up to
±28 V.
This device uses internal NMOS, and therefore, no external device
is necessary, reducing the system cost and the PCB area of the
application board.
The NCP372 is able to instantaneously disconnect the output from
the input, due to integrated Low Ron Power NMOS, if the input
voltage exceeds the overvoltage threshold (OVLO) or undervoltage
threshold (UVLO).
At powerup (EN pin = low level), the Vout turns on 30 ms after the
Vin exceeds the undervoltage threshold.
The NCP372 provides a negative going flag (FLAG) output, which
alerts the system that a fault has occurred.
In addition, the device has ESDprotected input (15 kV Air) when
bypassed with a 1.0 mF or larger capacitor.
Features
Overvoltage Protection up to 28 V
Negative Voltage Protection down to 28 V
Reverse Current Blocking
OnChip Low RDS(on) NMOS Transistor: Typical 130 mW
Overvoltage Lockout (OVLO)
Undervoltage Lockout (UVLO)
SoftStart
Alert FLAG Output
Shutdown EN Input
Compliance to IEC6100042 (Level 4)
8.0 kV (Contact)
15 kV (Air)
ESD Ratings: Machine Model = B
Human Body Model = 2
12 Lead LLGA 3x3 mm Package
This is a PbFree and HalogenFree Device
Applications
Cell Phones
Camera Phones
Digital Still Cameras
Personal Digital Assistant
MP3 Players
GPS
© Semiconductor Components Industries, LLC, 2009
April, 2009 Rev. 0
1
http://onsemi.com
MARKING
DIAGRAM
1
12 PIN LLGA
MU SUFFIX
CASE 513AK
NCAI
372
ALYWG
G
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = PbFree Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
IN 1
12 OUT
IN 2
11 OUT
GND 3
RES 4
NCP372
10 FLAG
9 EN
RES 5
8 NC
RES 6
(Top View)
7 GND
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
Publication Order Number:
NCP372/D

PagesPages 12
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