ENGLISH 简体中文 日本語 한국어  

DS2711, DS2712
Loose Cell NiMH Chargers

NiMH Battery Charger Detects and Avoids Charging Alkaline Cells


  QuickView     Technical Documents     Ordering Info     More Information     User Comments (0)     All  
Description
FULL DATA SHEET (PDF, 260kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


The DS2711 and DS2712 are ideal for in-system or stand-alone charging of 1 or 2 AA or AAA NiMH "loose" cells. Temperature, voltage, and charge time are monitored to provide proper fast charging control algorithms for nickel metal hydride (NiMH) batteries. Battery tests are included to detect defective or inappropriate cells such as alkaline primary batteries. The DS2711/DS2712 support series and parallel topologies, with independent monitoring and control of each cell. Charging of NiCd chemistry cells is also supported.

Awards

DS2711: EDAW-NEC Power-Supply Product Award Winner 2005
  
DS2711 Loose Cell NiMH Linear Charger: EDN Innovation Award, Finalist 2004

Key Features   Applications/Uses
  • Charge 1 or 2 NiMH Cells
  • Detect and Avoid Charging Alkaline Cells
  • Precharge Deeply Depleted Cells
  • Fast Charge NiMH with -DeltaV Termination Sensitivity of 2mV (typ)
  • Monitor Voltage, Temperature, and Time for Safety and Secondary Termination
  • Regulate Charge Current:
    • Linear Control (DS2711)
    • Switch-Mode Control (DS2712)
  • Drive PMOS or PNP-Type Pass Element or Switch, or an Optocoupler
  • Compatible with Popular Optocouplers and Integrated Primary Side PWM Controllers
  • Small 16-Pin SO or TSSOP Package

 
  • Desktop/Stand-Alone Chargers (AAA/AA)
  • Digital Still Cameras
  • Gaming
  • Music Players
  • Toys

    Key Specifications:   Battery Chargers
    Part Number Cell Chemistry Number of NiMH or NiCd cells Protected VIN (max) (V) Charging VIN (max) (V) Charge Rate Set by Charge Termination Charge Regulation Features EV-Kit Package Operating Temp. Range (°C) Price**
    DS2711  NiCd
    NiMH
    1
    2
    5.5 5.5 Resistor -ΔV Linear
    Stand Alone
    Thermistor Input
    Timer
    Yes SOIC/16
    TSSOP/16
    -20 to +70 $1.80 @ 1k
    DS2712  Switchmode $1.80 @ 1k
    See All Battery Chargers (60)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    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 

    2005-08-11
    This page last modified: 2008-03-06



          Privacy Policy    Legal Notices

          Copyright © 2008 by Maxim Integrated Products, Dallas Semiconductor