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DS2711 - (DS2711 / DS2712) Loose Cell NiMH Chargers

General 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.

Key Features

  • Charge 1 or 2 NiMH Cells.
  • Detect and Avoid Charging Alkaline Cells.
  • Precharge Deeply Depleted Cells.
  • Fast Charge NiMH with -∆V 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 Con.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
DS2712 (DS2711 / DS2712) Loose Cell NiMH Chargers
DS2714 Quad Loose Cell NiMH Charger
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DS2705 SHA-1 Authentication Master
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-5826; Rev 4/11 GENERAL 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.