Rainbow Electronics DS2710 - Manual

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.
Applications
Small Rechargeable Devices
Voice Recorders
Cordless Mouse
Battery-Powered Toys
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)
DS2710
Single-Cell NiMH Charger
________________________________________________________________ Maxim Integrated Products 1
DS2710
1 10 VP1 V
SS
3 8 VN0 V DD
2 9 VN1 CS
4 7 TMR THM
5 6 CTEST STATUS
TDFN
(3mm × 4mm)
TOP VIEW
+
*EP
*EXPOSED PAD.
Pin Configuration
Ordering Information
DS2710
V DD VP1
THM
CS
VN0 VN1
SENSE
CHARGE
SOURCE
NiMH
CELL
GROUND
Typical Operating Circuit
Rev 0; 4/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
+ Denotes a lead-free/RoHS-compliant package.
T&R = Tape and reel.
*
EP = Exposed pad.
PART PIN-PACKAGE
DS2710G+ 10 TDFN-EP*
DS2710G+T&R 10 TDFN-EP*