MAX8808XETA+T Maxim Integrated Products, MAX8808XETA+T Datasheet

MAX8808XETA+T

Manufacturer Part Number

MAX8808XETA+T

Description

IC CHARGER LI+ SGLL CCCV 8TDFN

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX8808XETATG104.pdf (13 pages)

Specifications of MAX8808XETA+T

Function

Charge Management

Battery Type

Lithium-Ion (Li-Ion)

Voltage - Supply

0 V ~ 15 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

8-TDFN Exposed Pad

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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The MAX8808X/MAX8808Y/MAX8808Z intelligent,

stand-alone constant-current/constant-voltage (CCCV),

thermally regulated linear chargers are designed for

charging a single-cell lithium-ion (Li+) battery. The

MAX8808X/MAX8808Y/MAX8808Z integrate the cur-

rent-sense circuit, MOS pass element, and thermal-reg-

ulation circuitry, and eliminate the reverse-blocking

Schottky diode to create the simplest and smallest

charging solution for handheld equipment.

The MAX8808X functions as a stand-alone charger to

control the charging sequence from the prequalification

state through fast-charge, top-off charge, and full-

charge indication. The MAX8808Y and MAX8808Z elimi-

nate the prequalification state to allow startup into a load

without a battery. Proprietary thermal-regulation circuitry

limits the die temperature when fast-charging or while

exposed to high ambient temperatures, allowing maxi-

mum charging current without damaging the IC.

The MAX8808X/MAX8808Y/MAX8808Z achieve high

flexibility by providing an adjustable fast-charge current

with an external resistor. Other features include a bat-

tery charging-status indicator (CHG), an active-low con-

trol input (EN) for the MAX8808X and MAX8808Z

(active-high control input for the MAX8808Y), and an

active-low input power-source detection output (ACOK).

The MAX8808X/MAX8808Y/MAX8808Z accept a

+4.25V to +15V supply, but disable charging when the

input voltage exceeds +7V to protect against unquali-

fied or faulty AC adapters. The MAX8808X/MAX8808Y/

MAX8808Z operate over the extended temperature

range (-40°C to +85°C) and are available in a compact

8-pin thermally enhanced 2mm x 2mm TDFN package

with 0.8mm (max) height.

19-3670; Rev 0; 4/05

Pin Configuration appears at end of data sheet.

Bluetooth is a registered trademark of Bluetooth SIG.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

1A Linear Li+ Battery Chargers with Integrated Pass

FET and Thermal Regulation in 2mm x 2mm TDFN

Cellular and Cordless Phones

Smartphones and PDAs

Digital Still Cameras and MP3 Players

USB Appliances

Charging Cradles and Docks

Bluetooth

________________________________________________________________ Maxim Integrated Products

Equipment

General Description

Applications

♦ Stand-Alone Linear 1-Cell Li+ Battery Charger

♦ No External FET, Reverse Blocking Diode, or

♦ Programmable Fast-Charge Current (1A max)

♦ Proprietary Die Temperature Regulation Control

♦ +4.25V to +15V Input Voltage Range with Input

♦ Charge-Current Monitor for Fuel Gauging

♦ Low Dropout Voltage—300mV at 500mA

♦ Input Power-Source Detection Output (ACOK) and

♦ Soft-Start Limits Inrush Current

♦ Charge-Status Output (CHG) for LED or

♦ Tiny 2mm x 2mm 8-Pin TDFN Package, 0.8mm

All devices specified over the -40°C to +85°C operating range.

+Denotes lead-free package.

*EP = Exposed paddle.

MAX8808XETA+ 8 TDFN-EP* 2mm x 2mm (T822-1)

MAX8808YETA+ 8 TDFN-EP* 2mm x 2mm (T822-1)

MAX8808ZETA+ 8 TDFN-EP* 2mm x 2mm (T822-1)

Current-Sense Resistor Required

(+115°C)

OVP Above +7V

Charge-Enable Input (EN or EN)

Microprocessor (µP) Interface

(max) Height

*MAX8808Y USES ACTIVE-HIGH LOGIC FOR EN.

PART

4.25V TO 15V

OFF

Typical Operating Circuit

PIN-PACKAGE

CHG

EN*

ISET

Ordering Information

MAX8808X

MAX8808Y

MAX8808Z

GND

ACOK

BATT

Features

4.2V

Li+

MARK

TOP

AAC

AAB

AAA

Related parts for MAX8808XETA+T

MAX8808XETA+T Summary of contents

Page 1

... Bluetooth Equipment Pin Configuration appears at end of data sheet. Bluetooth is a registered trademark of Bluetooth SIG. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ♦ Stand-Alone Linear 1-Cell Li+ Battery Charger ♦ No External FET, Reverse Blocking Diode, or Current-Sense Resistor Required ♦ ...

Page 2

Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +16V VL, BATT, EN, ACOK, CHG to GND.........................-0.3V to +6V VL, ISET to GND .......................................................-0.3V ...

Page 3

Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN ELECTRICAL CHARACTERISTICS (continued 5V 4.0V ACOK CHG IN BATT MAX8808Y 2.8kΩ to GND, C ...

Page 4

Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN = 4.0V, ACOK = EN = unconnected 5V BATT unless otherwise noted.) SUPPLY CURRENT vs. INPUT VOLTAGE 2.0 ...

Page 5

Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN PIN NAME Input Supply Voltage. Bypass IN to GND with a 1µF or larger ceramic capacitor to improve line 1 IN noise and ...

Page 6

Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN Detailed Description The MAX8808X/MAX8808Y/MAX8808Z chargers use voltage, current, and thermal-control loops to charge a single Li+ cell and protect the battery a Li+ ...

Page 7

Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN V < 2.5V BATT PREQUAL 10% CHARGE CURRENT CHG = LOW V < 2.4V BATT V > 2.5V BATT FAST-CHARGE 100% CHARGER CURRENT ...

Page 8

Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN VL Internal Voltage Regulator The MAX8808X/MAX8808Y/MAX8808Z linear chargers contain an internal linear regulator to supply the power for the IC. Bypass VL to ...

Page 9

Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN DC Input Sources The MAX8808X/MAX8808Y/MAX8808Z operate from well-regulated DC sources. The full charging input volt- age range is 4.25V to 7V. The device ...

Page 10

Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN USB-Powered Li+ Charger The universal serial bus (USB) provides a high-speed serial communication port as well as power for the remote device. The ...

Page 11

Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN Pin Configuration TOP VIEW MAX8808 TDFN ( ) INDICATES THE MAX8808Y. ______________________________________________________________________________________ Chip Information PROCESS: ...

Page 12

Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ...

Page 13

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2005 Maxim Integrated Products ...

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