NCP348: Positive Overvoltage Protection Circuit with Internal Low Ron NMOS FET and Status Flag

Datasheet: Positive Overvoltage Protection Controller with Internal Low Ron NMOS FET and Status Flag
Rev. 6 (482.0kB)
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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 necesary, 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 (80 mΩ, if the input voltage exceeds the overvoltage threshold (6.4 V) or undervoltage threshold, of 3.25 V (UVLO).
At powerup (EN(BAR) pin = low level), the Vout turns on 50 ms after the Vin exceeds the undervoltage threshold.
The NCP348 provides a negative going flag(FLAG(BAR)) 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 µF or larger capacitor.
Features
 
  • Overvoltage Protection up to 28 V
  • On-Chip Low RDS(on) NMOS Transistor: 80 mΩ
  • Internal Charge Pump
  • Overvoltage Lockout (OVLO)
  • Undervoltage Lockout (UVLO)
  • Internal 50 ms Startup Delay
  • Alert FLAG(BAR) Output
  • Shutdown EN(BAR) Input
  • Compliance to IEC61000-4-2 (Level 4), 8.0 kV (Contact), and 15 kV (Air)
  • ESD Ratings: Machine Model = B, Human Body Model = 3
  • This is a Pb-Free Device
Applications
  • Cell Phones, Camera Phones, Digital Still Cameras, Personal Digital Applicaitons, and MP3 Players
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP348GEVB Active
Pb-free
Positive OVP Controller Evaluation Board
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP348AEMTTBG Last Shipments
Pb-free
Halide free
NCP348, OVLO 6.02 V WDFN-10 516AA 1 260 Tape and Reel 3000  
NCP348AEMTTXG Obsolete 
Pb-free
Halide free
NCP348, OVLO 6.02 V WDFN-10 516AA 1 260 Tape and Reel 10000  
NCP348AEMUTBG Obsolete 
Pb-free
Halide free
NCP348, OVLO 6.02 V LLGA-10 513AG 1 260 Tape and Reel 3000  
NCP348MTTBG Consult Sales Office
Pb-free
Halide free
NCP348, OVLO 6.4 V WDFN-10 516AA 1 260 Tape and Reel 3000  
NCP348MTTXG Obsolete 
Pb-free
Halide free
NCP348, OVLO 6.4 V WDFN-10 516AA 1 260 Tape and Reel 10000  
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Case Outlines
516AA    513AG   
Packages
NCP348: Positive Overvoltage Protection Circuit with Internal Low R<sub>on</sub> NMOS FET and Status Flag
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Positive Overvoltage Protection Controller Evaluation Board - NCP348GEVB
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