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NCP348

ON Semiconductor
Part Number NCP348
Manufacturer ON Semiconductor
Description Positive Overvoltage Protection Controller
Published Jan 16, 2007
Detailed Description NCP348, NCP348AE Positive Overvoltage Protection Controller with Internal Low RON NMOS FET and Status FLAG The NCP348 i...
Datasheet PDF File NCP348 PDF File

NCP348
NCP348

Overview
NCP348, NCP348AE 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 mW), if the input voltage exceeds the overvoltage threshold (OVLO) or undervoltage threshold (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 http://onsemi.
com MARKING DIAGRAM WDFN10 MT SUFFIX CASE 516AA BAxM G BAI = NCP348 BAJ = NCP348AE 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 and shipping information in the package dimensions section on page 12 of this data sheet.
© Semiconductor Components Industries, LLC, 2010 May, 2010 − Rev.
6 1 Q Publication Order Number: NCP348/D NCP34...


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