DS2714

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

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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

Additional Details

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.

Applications