NCP349: Positive Overvoltage Protection Circuit with Internal Low Ron NMOS FET

Overview
Specifications
Datasheet: Positive Overvoltage Protection Controller with Internal Low Ron NMOS FET and Status Flag
Rev. 3 (300.0kB)
»View Material Composition
»Product Change Notification (6)
Product Overview
Product Description
The NCP349 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 NCP349 is able to instantaneously disconnect the output from the input, due to integrated Low Ron Power NMOS (65 mΩ, if the input voltage exceeds the overvoltage threshold (OVLO) or undervoltage threshold(UVLO).
At powerup (EN(BAR) pin = low level), the Vout turns on ton after the Vin exceeds the undervoltage threshold.
The NCP349 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: 65 m
  • Overvoltage Lockout (OVLO)
  • Undervoltage Lockout (UVLO)
  • Internal Soft start
  • 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
  • Package DFN 1.6 x 2.0 mm
Applications
  • Cell Phones, Camera Phones, Digital Still Cameras, PDA, and MP3 Players
Technical Documentation & Design Resources
Data Sheets (1) Evaluation Board Documents (4)
Package Drawings (1)  
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP349GEVB Active
Pb-free
Positive OVP Controller Evaluation Board
Avnet (2014-10-21) : 2
Mouser (2014-10-21) : 1
Digi-Key (2014-10-21) : 2
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
NCP349MNAETBG Active
Pb-free
Halide free
Positive Overvoltage Protection Circuit with Internal Low Ron NMOS FET, OVLO 5.68 V DFN-6 506BM 1 Tape and Reel 3000 $0.2933
NCP349MNBGTBG Active
Pb-free
Halide free
Positive Overvoltage Protection Circuit with Internal Low Ron NMOS FET, OVLO 6.02 V DFN-6 506BM 1 Tape and Reel 3000 $0.2933
NCP349MNBKTBG Active
Pb-free
Halide free
Positive Overvoltage Protection Circuit with Internal Low Ron NMOS FET, OVLO 6.4 V DFN-6 506BM 1 Tape and Reel 3000 $0.2933
NCP349MNTBG Active
Pb-free
Halide free
Positive Overvoltage Protection Circuit with Internal Low Ron NMOS FET, OVLO 6.85 V DFN-6 506BM 1 Tape and Reel 3000 $0.2933
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) :
Digi-Key   (2014-10-21 00:00) : >10K
Mouser   (2014-10-21 00:00) : >1K
P&S   (2014-10-21 00:00) : >1K
Market Leadtime (weeks) :
ON Semiconductor   (2014-11-19 00:00) : 30,000
Market Leadtime (weeks) :
Market Leadtime (weeks) :
Avnet   (2014-10-21 00:00) : >1K
Mouser   (2014-10-21 00:00) : >1K
ON Semiconductor   (2014-11-19 00:00) : 906,000
P&S   (2014-10-21 00:00) : >1K
Datasheet: Positive Overvoltage Protection Controller with Internal Low Ron NMOS FET and Status Flag
Rev. 3 (300.0kB)
»View Material Composition
»Product Change Notification (6)
Product Overview

Product Compliance Status Description VCC Min (V) VCC Max (V) P(AV) Max (W) VIT+ Typ (V) VIT Typ (V) IDDH Max (uA) TA Min (°C) TA Max (°C) Package Type
 Pb-free 
 Halide free 
 Active     Positive Overvoltage Protection Circuit with Internal Low Ron NMOS FET, OVLO 5.68 V   1.2   28   0.065   5.68   2.95   0.25   -40   85   DFN-6 
 Pb-free 
 Halide free 
 Active     Positive Overvoltage Protection Circuit with Internal Low Ron NMOS FET, OVLO 6.02 V   1.2   28   0.065   6.02   3.25   0.25   -40   85   DFN-6 
 Pb-free 
 Halide free 
 Active     Positive Overvoltage Protection Circuit with Internal Low Ron NMOS FET, OVLO 6.4 V   1.2   28   0.065   6.4   3.25   0.25   -40   85   DFN-6 
 Pb-free 
 Halide free 
 Active     Positive Overvoltage Protection Circuit with Internal Low Ron NMOS FET, OVLO 6.85 V   1.2   28   0.065   6.85   2.95   0.25   -40   85   DFN-6 
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