MAX1507 Maxim Integrated Products, MAX1507 Datasheet

MAX1507

Manufacturer Part Number

MAX1507

Description

Linear Li Battery Charger

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX1507.pdf (12 pages)

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The MAX1507 is an intelligent, stand-alone constant-cur-

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

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

MAX1507 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 MAX1507 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 when fast charging or while exposed to

high ambient temperatures, allowing maximum charg-

ing current without damaging the IC.

The MAX1507 achieves high flexibility by providing an

adjustable fast-charge current and thermal regulation

setpoints. Other features include the charging status

(CHG) of the battery and an active-low control input (EN).

The MAX1507 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

MAX1507 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.

19-2899; Rev 1; 11/03

Linear Li+ Battery Charger with Integrated Pass FET

Bluetooth is a trademark of Ericsson.

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.

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Cellular and Cordless Phones

PDAs

Digital Cameras and MP3 Players

USB Appliances

Charging Cradles and Docks

Bluetooth™ Equipment

and Thermal Regulation in 3mm x 3mm Thin DFN

________________________________________________________________ Maxim Integrated Products

3mm x 3mm THIN DFN

General Description

MAX1507

Pin Configuration

Applications

*EP = Exposed paddle.

MAX1507ETA

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 Programmable Die-Temperature

Regulation Control (+90°C, +100°C, and +130°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 (VL) 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

INPUT

4.25V TO 13V

PART

0.47µF

OFF

1µF

-40 C to +85 C

TEMP RANGE

Typical Operating Circuit

CHG

Ordering Information

MAX1507

PIN-PACKAGE

8 Thin DFN-EP*

TEMP

BATT

GND

ISET

1µF

Features

MARK

2.80kΩ

AGW

Li+

4.2V

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Datasheet pdf - http://www.DataSheet4U.net/

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