MAX1508

更新时间： 2024-11-03 22:55:27

品牌	Logo	应用领域
美信 - MAXIM		电池
页数	文件大小	规格书
11页	198K
描述
Linear Li Battery Charger with Integrated Pass FET, Thermal Regulation, and ACOKin 3mm x 3mm TDFN

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MAX1508 数据手册

19-2890; Rev 1; 10/03

Linear Li+ Battery Charger with Integrated Pass FET,

Thermal Regulation, and ACOK in 3mm x 3mm TDFN

General Description

Features

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.

ꢀ 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

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. The MAX1508Y and MAX1508Z elimi-

nate the prequalification state to allow startup into a load

without a battery.

Overvoltage Protection (OVP) Above +7V

ꢀ Charge-Current Monitor for Fuel Gauging

ꢀ Low Dropout Voltage—130mV at 0.425A

ꢀ Input Power-Source Detection Output (ACOK)

ꢀ Soft-Start Limits Inrush Current

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.

ꢀ No Prequalification State for the MAX1508Y and

MAX1508Z

ꢀ Charge Status Output (CHG) for LED or

Microprocessor Interface

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) for the

MAX1508 and MAX1508Z (active-high control input for

the MAX1508Y), and an active-low input power-source

detection output (ACOK).

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

0.8mm High

ꢀ Active-Low Charge Enable (EN) (MAX1508 and

MAX1508Z)

ꢀ Active-High Charge Enable (EN) (MAX1508Y)

Ordering Information

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.

TOP

MARK

PART

TEMP RANGE PIN-PACKAGE

MAX1508ETA

MAX1508YETA

MAX1508ZETA

-40 C to +85 C 8 Thin DFN-EP*

AHF

AIL

AIK

Applications

Cellular and Cordless Phones

PDAs

*EP = Exposed paddle.

Pin Configuration

Digital Cameras and MP3 Players

USB Appliances

TOP VIEW

Charging Cradles and Docks

Bluetooth™ Equipment

MAX1508

MAX1508Y

MAX1508Z

Typical Operating Circuit appears at end of data sheet.

3mm x 3mm THIN DFN

( ) ARE FOR THE MAX1508Y ONLY

Bluetooth is a trademark of Ericsson.

________________________________________________________________ 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.

12 3 4 5 6 7...11

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与MAX1508相关器件

型号	品牌	获取价格	描述	数据表
MAX1508\|MAX1508Y\|MAX1508Z	MAXIM	获取价格	Linear Li+ Battery Charger with Integrated Pass FET. Thermal Regulation. and ACOK-bar in 3
MAX1508ETA	MAXIM	获取价格	Linear Li Battery Charger with Integrated Pass FET, Thermal Regulation, and ACOKin 3mm x 3
MAX1508ETA+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, LEAD FRE
MAX1508ETA-T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, MO-229WE
MAX1508YETA	MAXIM	获取价格	Linear Li Battery Charger with Integrated Pass FET, Thermal Regulation, and ACOKin 3mm x 3
MAX1508YETA-T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, MO-229WE
MAX1508YETA-T	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, DSO8, 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-8
MAX1508ZETA	MAXIM	获取价格	Linear Li Battery Charger with Integrated Pass FET, Thermal Regulation, and ACOKin 3mm x 3
MAX1508ZETA+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, MO-229,
MAX1508ZETA+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, LEAD FRE

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