ENGLISH 简体中文 日本語 한국어  

    Login | Register 


   
 
Enter keywords or part number    



MAX4880
Overvoltage-Protection Controller with Internal Disconnect Switch


  QuickView     Technical Documents     Ordering Info     More Information     User Comments (0)     All  
Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 212kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail
The MAX4880 is an overvoltage-protection controller with an internal current-limited switch that can be configured as a low-cost battery charger. When the input voltage exceeds the overvoltage trip level (5.7V), or drops below the undervoltage-lockout level (4.2V), the MAX4880 turns off the external n-channel MOSFET and asserts an undervoltage/overvoltage flag indicator (FLAGV-bar) low to notify the processor.

The MAX4880 internal current-limited switch limits the charge current flowing to the battery to 525mA. The switch opens when the battery voltage reaches its full-charged state (4.2V), and a flag (BAT_OK-bar) asserts to notify the processor. The MAX4880 includes a switchcontrol input (CB) to turn off the internal current-limited switch, regardless of the battery voltage.

The MAX4880 also features a built-in startup delay that allows the adapter voltage to settle down before turning on the MOSFET. Other features include 15kV ESD protection for the input and a shutdown function (EN-bar) to turn off the external n-channel MOSFET.

The MAX4880 is available in a space-saving 10-pin TDFN package and is specified for operation over the extended -40°C to +85°C temperature range.

Key Features   Applications/Uses
  • Overvoltage Protection Up to 28V
  • Preset 5.6V Overvoltage Trip Level
  • Internal 525mA Current-Limited Switch
  • ±1.2% Accurate Battery Disconnect (4.2V)
  • Drives Low-Cost n-Channel MOSFET
  • Internal 50ms Startup Delay
  • Overvoltage/Undervoltage-Fault FLAGV-bar Indicator
  • Battery-Voltage-Trip BAT_OK-bar Indicator
  • Undervoltage Lockout
  • Thermal Shutdown Protection
  • Tiny 10-Pin TDFN Package

     

    Key Specifications:  Overvoltage Protection Controllers
    Part Number Channels VIN
    (V)
    VIN
    (V)
    Over Voltage Trip Level
    (V)
    Under Voltage Lockout
    (V)
    VGATE
    (V)
    Over Volt. Flag tGATE (On)
    (ms)
    tGATE (Off)
    (µs)
    Features Package/Pins Price
    min max See Notes
    MAX4880  1 1.2 28 5.6 4.35 10 Open-Drain 7 6
    Internal Charge Pump
    Internal Disconnect Switch
    TDFN-EP/10
    $1.40 @1k
    See All Overvoltage Protection Controllers (47)

    Diagram
    MAX4880: Typical Operating Circuit
    Typical Operating Circuit

    Didn't Find What You Need?
  • Next Day Product Selection Assistance from Applications Engineers
  • Parametric Search
  • Applications Help
  •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

     Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

     Price and Availability 
     Samples 
     Buy Online 
     Package Information 
     Lead-Free Information 

     Related Products 
     Notes and Comments 
     Evaluation Kits 

    Document Ref.: 19-3776; Rev 0; 2005-08-18
    This page last modified: 2005-08-22


            •         •         •     Privacy Policy     •     Legal Notices

        Copyright © 2009 by Maxim Integrated Products