Single-Cell NiMH Charger

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.

Applications

* Battery-Powered Toys * Cordless Mouse * Small Rechargeable Devices * Voice Recorders

* 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)