DS2710G データシートの表示（PDF） - Maxim Integrated

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DS2710G

Single-Cell NiMH Charger

Maxim Integrated 

Rev 0; 4/08

Single-Cell NiMH Charger

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

Typical Operating Circuit

CHARGE

SOURCE

GROUND

CS

VDD

VP1

DS2710

THM

VN0

VN1

SENSE

NiMH

CELL

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)

Ordering Information

PART

PIN-PACKAGE

DS2710G+

10 TDFN-EP*

DS2710G+T&R

10 TDFN-EP*

+Denotes a lead(Pb)-free/RoHS-compliant package.

T&R = Tape and reel.

*EP = Exposed pad.

Pin Configuration

TOP VIEW

VSS 1 +

CS 2

VDD 3

THM 4

STATUS 5

*EP

DS2710

10 VP1

9 VN1

8 VN0

7 TMR

6 CTEST

*EXPOSED PAD.

TDFN

(3mm × 4mm)

________________________________________________________________ Maxim Integrated Products 1

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.

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