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NCP348 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. NCP348
Description  Positive Overvoltage Protection Controller with Internal Low R_ON NMOS FET and Status FLAG
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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© Semiconductor Components Industries, LLC, 2006
November, 2006 − Rev. 2
1
Publication Order Number:
NCP348/D
NCP348
Positive Overvoltage
Protection Controller with
Internal Low RON NMOS FET
and Status FLAG
The NCP348 is able to disconnect the systems from its output pin
in case wrong input operating conditions are detected. The system is
positive overvoltage protected up to +28 V.
Due to this device using internal NMOS, no external device is
necessary, reducing the system cost and the PCB area of the
application board.
The NCP348 is able to instantaneously disconnect the output from
the input, due to integrated Low RON Power NMOS (65 m
W), if the
input voltage exceeds the overvoltage threshold (6.4 V) or
undervoltage threshold, of 3.25 V (UVLO).
At powerup (EN pin = low level), the Vout turns on 50 ms after the
Vin exceeds the undervoltage threshold.
The NCP348 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.
Features
Overvoltage Protection up to 28 V
On−Chip Low RDS(on) NMOS Transistor: 65 mW
Internal Charge Pump
Overvoltage Lockout (OVLO)
Undervoltage Lockout (UVLO)
Internal 50 ms Startup Delay
Alert FLAG Output
Shutdown EN Input
Compliance to IEC61000−4−2 (Level 4)
8.0 kV (Contact)
15 kV (Air)
ESD Ratings: Machine Model = B
Human Body Model = 3
10 Lead WDFN 2.5x2 mm Package
This is a Pb−Free Device
Applications
Cell Phones
Camera Phones
Digital Still Cameras
Personal Digital Applications
MP3 Players
WDFN10
MT SUFFIX
CASE 516AA
PIN CONNECTIONS
Device
Package
Shipping
ORDERING INFORMATION
NCP348MTTBG
3000 / Tape & Reel
http://onsemi.com
MARKING
DIAGRAM
BAI = Specific Device Code
M
= Date Code
G
= Pb−Free Package
(Top View)
IN
OUT
1
FLAG
NC
GND
NC
IN
EN
QFN−16
IN
OUT
WDFN−10
(Pb−Free)
2
3
4
5
10
9
8
7
6
PAD1
GND
PAD2
IN
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
BAIM
G
NCP348MTTXG
10000 / Tape & Reel
WDFN−10
(Pb−Free)




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