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MAX8600A

Single-Input 1-Cell Li+ Charger with OVP Protection and Programmable Charge Timer

Maxim Integrated 

19-3205; Rev 1; 1/09

EVAALVUAAILTAIOBNLEKIT

Single-Input 1-Cell Li+ Charger with

OVP Protection and Programmable Charge Timer

General Description

The MAX8600A single-input linear battery charger safe-

ly charges single-cell Li+ batteries. Charging is opti-

mized for Li+ cells using a control algorithm that

includes low-battery precharging, voltage and current-

limited fast-charging, and top-off charging, while con-

tinuously monitoring the battery for overvoltage,

over/under temperature, and charging time. Charger

timeout protection is programmable, and the status is

indicated by three open-drain outputs.

The MAX8600A linear charger optimizes charging time

by adjusting the charge rate to accommodate the ther-

mal characteristics of a given application. There is no

need to reduce the maximum charge current to accom-

modate worst-case charger power dissipation.

The MAX8600A is a variation of the MAX8600 with

improved dropout and other spec changes. See

Maxim’s website for an outline of MAX8600/MAX8600A

differences.

The MAX8600A is available in a 3mm x 3mm power-

enhanced TDFN package.

Cell Phones

Digital Cameras

PDAs

GPS

Applications

Portable Media Players

MP3 Players

Wireless Appliances

Pin Configuration

Features

♦ Low Dropout -0.188V at 0.75A

♦ Up to 1A Programmable Fast-Charge

♦ 5% Charge-Current Accuracy

♦ Logic-Low Enable Input

♦ 14V Input Overvoltage Protection

♦ Programmable On-Chip Charge Timer

♦ Battery Thermistor Input

♦ Three Charger-Status Outputs

♦ Thermally Optimized Charge Rate

♦ 14-Pin, 3mm x 3mm TDFN Package

Ordering Information

PART

TEMP RANGE PIN-PACKAGE TOP

MARK

14 TDFN-EP*

MAX8600AETD+ -40°C to +85°C (3mm x 3mm) AEF

(T1433-2)

*EP = Exposed pad.

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

Typical Operating Circuit

TOP VIEW

+

BAT 1

SETI 2

THM 3

GND 4

CT 5

N.C. 6

BAT 7

MAX8600A

TDFN

14 FLT

13 DC

12 DC

11 CHG

10 POK

9 DC

8 EN

DC INPUT

4.1V TO 5.9V

OFF

ON

DC

POK

MAX8600A

EN

CHG

CT

FLT

BAT

SETI

THM

GND

SAFE DC

LOGIC

SUPPLY

LED

+

Li+

________________________________________________________________ Maxim Integrated Products 1

For information on other Maxim products, visit Maxim’s website at www.maxim-ic.com.

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