General Description

The DS2710 is ideal for in-system charging of single-cell nickel metal hydride (NiMH) cells for low-current portable applications. Inputs to the DS2710 include USB voltage sources and 5V regulated adapters. Temperature, voltage, and charge time are monitored to provide proper fast-charging control algorithms for single-cell NiMH or nickel cadmium (NiCd) batteries. The DS2710 includes battery tests to detect defective or inappropriate cells such as alkaline primary batteries.

Features

♦ Charges Single-Cell NiMH Cells

♦ Switch-Mode Topologies Supported by Hysteretic Control Technique

♦ Precharges Deeply Depleted Cells

♦ Fast-Charges NiMH with -ΔV Termination Sensitivity of 2mV (typ)

♦ Monitors Voltage, Temperature, and Time for Safety and Secondary Termination

♦ Regulates Charge Current

♦ Designed for External pMOS

♦ Rail-to-Rail MOSFET Driver

♦ Tiny 10-Pin TDFN Package (3mm x 4mm)

Applications

    Small Rechargeable Devices

    Voice Recorders

    Cordless Mouse

    Battery-Powered Toys