Rainbow-electronics MAX1508 Bedienungsanleitung PDF herunterladen

General Description

The MAX1508 is an intelligent, stand-alone constant-cur-

rent, constant-voltage (CCCV), thermally regulated linear

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

MAX1508 integrates the current-sense circuit, MOS pass

element, and thermal-regulation circuitry, and also elimi-

nates the reverse-blocking Schottky diode, to create the

simplest and smallest charging solution for hand-held

equipment.

The MAX1508 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.

Proprietary thermal-regulation circuitry limits the die

temperature to +100°C when fast charging or while

exposed to high ambient temperatures, allowing maxi-

mum charging current without damaging the IC.

The MAX1508 achieves high flexibility by providing an

adjustable fast-charge current by an external resistor.

Other features include the charging status (CHG) of the

battery, an active-low control input (EN), and an active-

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

The MAX1508 accepts a +4.25V to +13V supply, but dis-

ables charging when the input voltage exceeds +7V to

protect against unqualified or faulty AC adapters. The

MAX1508 operates over the extended temperature

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

8-pin thermally enhanced 3mm x 3mm thin DFN pack-

age with 0.8mm height.

Applications

Cellular and Cordless Phones

PDAs

Digital Cameras and MP3 Players

USB Appliances

Charging Cradles and Docks

Bluetooth™ Equipment

Features

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

♦ No External FET, Reverse-Blocking Diode, or

Current-Sense Resistor Required

♦ Programmable Fast-Charge Current (0.8A max)

♦ Proprietary Die-Temperature Regulation Control

(+100°C)

♦ +4.25V to +13V Input Voltage Range with Input

Overvoltage Protection (OVP) Above +7V

♦ Charge-Current Monitor for Fuel Gauging

♦ Low Dropout Voltage—130mV at 0.425A

♦ Input Power-Source Detection Output (ACOK) and

Charge-Enable Input (EN)

♦ Soft-Start Limits Inrush Current

♦ Charge Status Output (CHG) for LED or

Microprocessor Interface

♦ Small 3mm x 3mm 8-Pin Thin DFN Package,

0.8mm High

MAX1508

Linear Li+ Battery Charger with Integrated Pass FET,

Thermal Regulation, and

ACOK

in 3mm x 3mm TDFN

________________________________________________________________ Maxim Integrated Products 1

ACOK

ISET

CHG

BATT

GND

3mm x 3mm THIN DFN

TOP VIEW

MAX1508

Pin Configuration

Ordering Information

MAX1508

1µF

INPUT

4.25V TO 13V

2.80kΩ

CHG

1µF

Li+

4.2V

BATT

ISET

GND

0.47µF

OFF

ACOK

PART TEMP RANGE PIN-PACKAGE

TOP

MARK

MAX1508ETA -40°C to +85°C 8 Thin DFN-EP* AHF

Typical Operating Circuit

19-2890; Rev 0; 6/03

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.

EVALUATION KIT

AVAILABLE

Bluetooth is a trademark of Ericsson.

*EP = Exposed paddle.

1 2 3 4 5 6 ... 10 11

Inhaltsverzeichnis

Seite 1 - Thermal Regulation, and

General DescriptionThe MAX1508 is an intelligent, stand-alone constant-cur-rent, constant-voltage (CCCV), thermally regulated linearcharger for a sing

Seite 2

MAX1508Linear Li+ Battery Charger with Integrated Pass FET,Thermal Regulation, and ACOKin 3mm x 3mm TDFN10 ___________________________________________

Seite 3

MAX1508Li+ Linear Battery Charger with Integrated Pass FET,Thermal Regulation, and ACOKin 3mm x 3mm TDFNMaxim cannot assume responsibility for use of

Seite 4

MAX1508Linear Li+ Battery Charger with Integrated Pass FET,Thermal Regulation, and ACOKin 3mm x 3mm TDFN2 ____________________________________________

Seite 5

MAX1508Li+ Linear Battery Charger with Integrated Pass FET,Thermal Regulation, and ACOKin 3mm x 3mm TDFN______________________________________________

Seite 6

MAX1508Linear Li+ Battery Charger with Integrated Pass FET,Thermal Regulation, and ACOKin 3mm x 3mm TDFN4 ____________________________________________

Seite 7

MAX1508Li+ Linear Battery Charger with Integrated Pass FET,Thermal Regulation, and ACOKin 3mm x 3mm TDFN______________________________________________

Seite 8

MAX1508Linear Li+ Battery Charger with Integrated Pass FET,Thermal Regulation, and ACOKin 3mm x 3mm TDFN6 ____________________________________________

Seite 9

MAX1508Li+ Linear Battery Charger with Integrated Pass FET,Thermal Regulation, and ACOKin 3mm x 3mm TDFN______________________________________________

Seite 10 - Package Information

MAX1508Linear Li+ Battery Charger with Integrated Pass FET,Thermal Regulation, and ACOKin 3mm x 3mm TDFN8 ____________________________________________

Seite 11 - SEMICONDUCTOR

MAX1508Li+ Linear Battery Charger with Integrated Pass FET,Thermal Regulation, and ACOKin 3mm x 3mm TDFN______________________________________________

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Rainbow-electronics MAX1508 Bedienungsanleitung

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Inhaltsverzeichnis

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