NCP347 Datasheet, PDF (1/13 Pages) ON Semiconductor – Positive Overvoltage Protection Controller with Internal Low RON NMOS FET and Status FLAG

NCP347
Positive Overvoltage
Protection Controller with
Internal Low R_ON NMOS FET
and Status FLAG
The NCP347 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 NCP347 is able to instantaneously disconnect the output from
the input, due to integrated Low R_ON Power NMOS (65 mW), if the
input voltage exceeds the overvoltage threshold (OVLO) or
undervoltage threshold (UVLO).
At powerup (EN pin = low level), the V_out turns on 50 ms after the
V_in exceeds the undervoltage threshold.
The NCP347 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
•ăOvervoltage Protection up to 28 V
•ăOn-Chip Low R_DS(on) NMOS Transistor: 65 mW
•ăInternal Charge Pump
•ăOvervoltage Lockout (OVLO)
•ăUndervoltage Lockout (UVLO)
•ăInternal 50 ms Startup Delay
•ăAlert FLAG Output
•ăShutdown EN Input
•ăCompliance to IEC61000-4-2 (Level 4)
ą8.0 kV (Contact)
ą15 kV (Air)
•ăESD Ratings: Machine Model = B
Human Body Model = 3
•ă10 Lead WDFN 2.5x2 mm Package
•ăThis is a Pb-Free Device
Applications
•ăCell Phones
•ăCamera Phones
•ăDigital Still Cameras
•ăPersonal Digital Applications
•ăMP3 Players
http://onsemi.com
MARKING
DIAGRAM
WDFN10
MT SUFFIX
CASE 516AA
BAx M
G
BAx = Specific Device Code
M = Date Code
G = Pb-Free Package
PIN CONNECTIONS
IN 1
GND 2
FLAG 3
PAD1
GND
10 EN
9 NC
8 NC
IN 4
IN 5
PAD2
IN
7 OUT
6 OUT
(Top View)
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 12 of this data sheet.
©Ă Semiconductor Components Industries, LLC, 2007
1
September, 2007 - Rev. 0
Q
Publication Order Number:
NCP347/D