DS2710

Single-Cell NiMH Charger

Charges NiMH from a USB Port Without Fear of Overcharging an Alkaline Cell


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.
DS2710: Typical Operating Circuit DS2710: Typical Operating Circuit Enlarge+

Key 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/Uses

  • Battery-Powered Toys
  • Cordless Mouse
  • Small Rechargeable Devices
  • Voice Recorders
Part Number Protected VIN
(V)
Charging VIN
(V)
Charge Rate Set by Max. ICHG
(A)
Charge Termination Charge Regulation Oper. Temp.
(°C)
Budgetary
Price
max max See Notes
DS2710  5.5 5.5 Resistor 4 -ΔV Switchmode -20 to +70 $1.84 @1k
See All Battery Chargers (74)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


DS2710EVKIT: Evaluation Kit for the DS2710

Technical Documents

Tutorial 4803 The Basics of USB Battery Charging: A Survival Guide

Quality and Environmental Data

Product Reliability Reports: DS2710.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
 

Related Resources


MAX14676, MAX14676A
Wearable Charge Management Solution

  • Extend System Use Time Between Battery Charging
  • Easy-to-Implement Li+ Battery Charging
  • Minimize Power-Management Footprint though High Integration

MAX14676, MAX14676A
Wearable Charge Management Solution

  • Extend System Use Time Between Battery Charging
  • Easy-to-Implement Li+ Battery Charging
  • Minimize Power-Management Footprint though High Integration