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DS2711

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Loose-Cell NiMH Chargers

NiMH Battery Charger Detects and Avoids Charging Alkaline Cells

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Product Details

See parametric specs for Battery Chargers

Key Features

See parametric specs for Battery Chargers
Parametric specs for Battery Chargers
Charging VIN (V) (max) 5.5
Cell Chemistry NiCd
NiMH
# NiMH/ NiCd Cells 1
2
Protected VIN (V) (max) 5.5
Oper. Temp. (°C) -20 to +70
Package/Pins SOIC (N)/16
TSSOP/16
Budgetary
Price (See Notes) 		2.51
See parametric specs for Battery Chargers
View Less

Simplified Block Diagram

Technical Docs

Data Sheet Loose-Cell NiMH Chargers Apr 19, 2011
App Note USB Battery Charging Overview | Maxim Integrated
App Note Detecting Primary Cells with the DS2711/12
Tutorial Overview of Rechargeable Batteries and Fast Stand-Alone Chargers

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact [email protected] with any questions regarding this Sample Site.

Parameters

Parametric specs for Battery Chargers
Charging VIN (V) (max) 5.5
Cell Chemistry NiCd
NiMH
# NiMH/ NiCd Cells 1
2
Protected VIN (V) (max) 5.5
Oper. Temp. (°C) -20 to +70
Package/Pins SOIC (N)/16
TSSOP/16
Budgetary
Price (See Notes) 		2.51
See parametric specs for Battery Chargers

Key Features

  • Charge 1 or 2 NiMH Cells
  • Detect and Avoid Charging Alkaline Cells
  • Precharge Deeply Depleted Cells
  • Fast Charge NiMH with -ΔV 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

Applications/Uses

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

Description

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.

Simplified Block Diagram

DS2711, DS2712: Block Diagram DS2711, DS2712: Block Diagram Zoom icon

Technical Docs

Data Sheet Loose-Cell NiMH Chargers Apr 19, 2011
App Note USB Battery Charging Overview | Maxim Integrated
App Note Detecting Primary Cells with the DS2711/12
Tutorial Overview of Rechargeable Batteries and Fast Stand-Alone Chargers

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact [email protected] with any questions regarding this Sample Site.