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Quad, Loose-Cell NiMH Charger

Fast-Charges 1 to 4 Loose NiMH Cells and Performs Tests that Detect and Avoid Charging Defective or Other Inappropriate Cells, such as Alkaline Primary Batteries

Product Details

Key Features

Simplified Block Diagram

Technical Docs

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Key Features

  • Charges 1 to 4 NiMH Cells
  • Detects and Avoids Charging Alkaline Cells
  • Pre-Charges Deeply Depleted Cells
  • Fast Charges NiMH with -V Termination Sensitivity of 2mV (typ)
  • Monitors Voltage, Temperature and Time for Safety and Secondary Termination
  • Works with Regulated Charge Current Source
  • Drives PNP Type Pass Element
  • Compatible with Integrated Primary-Side PWM Controllers
  • 20-pin TSSOP Package

Applications/Uses

  • Desktop/Standalone Chargers (AAA/AA)
  • Digital Still Cameras
  • Games
  • Music Players
  • Toys

Description

The DS2714 is ideal for standalone charging of 1 to 4 AA or AAA NiMH "loose" cells. NiCd cells can also be charged. 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 DS2714 supports a parallel charging topology, with independent monitoring and control of each cell.

Simplified Block Diagram

DS2714: Block Diagram DS2714: Block Diagram Zoom icon

Technical Docs

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 .