MAX1873TEEE

更新时间： 2024-09-30 22:19:55

品牌	Logo	应用领域
美信 - MAXIM		开关控制器
页数	文件大小	规格书
14页	207K
描述
Simple Current-Limited Switch-Mode Li Charger Controller

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MAX1873TEEE 数据手册

19-2099; Rev 0; 7/01

Simple Current-Limited Switch-Mode

Li+ Charger Controller

General Description

Features

The low-cost MAX1873R/S/T provides all functions

needed to simply and efficiently charge 2-, 3-, or 4-

series lithium-ion cells at up to 4A or more. It provides a

regulated charging current and voltage with less than

±±.7ꢀ5 total voltage error at the ꢁattery terminals. An

external P-channel MOSFET operates in a step-down

DC-DC configuration to efficiently charge ꢁatteries in

low-cost designs.

ꢀ Low-Cost and Simple Circuit

ꢀ Charges 2-, 3-, or 4-Series Lithium-Ion Cells

ꢀ AC Adapter Input-Current-Limit Loop

ꢀ Also Charges Ni-Based Batteries

ꢀ Analog Output Monitors Charge Current

ꢀ ±±0.75 Batterꢀ-ꢁegulation ꢂoltage

ꢀ 7µA Shutdown Batterꢀ Current

The MAX1873R/S/T regulates the ꢁattery voltage and

charging current using two control loops that work

together to transition smoothly ꢁetween voltage and

current regulation. An additional control loop limits cur-

rent drawn from the input source so that AC adapter

size and cost can ꢁe minimized. An analog voltage out-

put proportional to charging current is also supplied so

that an ADC or microcontroller can monitor charging

current.

ꢀ Input ꢂoltage Up to 28ꢂ

ꢀ 2±±mꢂ Dropout ꢂoltage/1±±5 Dutꢀ Cꢀcle

ꢀ Adjustable Charging Current

ꢀ 3±±kHz PWM Oscillator ꢁeduces Noise

ꢀ Space-Saving 16-Pin QSOP

The MAX1873 may also ꢁe used as an efficient current-

limited source to charge NiCd or NiMH ꢁatteries in mul-

tichemistry charger designs. The MAX1873R/S/T is

availaꢁle in a space-saving 16-pin QSOP package. Use

the evaluation kit (MAX1873EVKIT) to help reduce

design time.

ꢀ MAX18.3 Evaluation Kit Available to Speed

Designs

Ordering Information

PAꢁT

TEMP0 ꢁANGE

-4±°C to +8ꢀ°C

PIN-PACKAGE

16 QSOP

Applications

MAX1873REEE

MAX1873SEEE

MAX1873TEEE

Noteꢁook Computers

16 QSOP

Portaꢁle Internet Taꢁlets

16 QSOP

2-, 3-, or 4-cell Li+ Battery Pack Chargers

6-, 9-, or 1±-cell Ni Battery Pack Chargers

Hand-Held Instruments

Typical Operating Circuit

SYSTEM

LOAD

VIN 9V TO

28V

(9V MIN

FOR 2-

CELLS)

Portaꢁle Desktop Assistants (PDAs)

Desktop Cradle Chargers

VH VL

CSSP

CSSN

MAX1873

Selector Guide

DCIN

PAꢁT

SEꢁIES CELLS TO CHAꢁGE

2-Cell Li+ or 5- or 6-cell Ni Battery

3-Cell Li+ or 7- or 9-cell Ni Battery

4V OUT PER

MAX1873REEE

MAX1873SEEE

MAX1873TEEE

IOUT

200mV ON R

EXT

ICHG/EN

REF

4-Cell Li+ 10-cell Ni Battery Packs

CSB

BATT

CCI

VADJ

GND

CCS

CCV

Pin Configuration appears at end of data sheet.

2- TO 4-CELL

Li+

________________________________________________________________ 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...14

中文翻译

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MAX1873TEEE 替代型号

型号	品牌	替代类型	描述	数据表
MAX1873TEEE+	MAXIM	完全替代	Battery Charge Controller, BICMOS, PDSO16, 0.150 INCH, 0.025 INCH PITCH, QSOP-16
MAX1873TEEE-T	MAXIM	功能相似	Battery Charge Controller, BICMOS, PDSO16, QSOP-16

与MAX1873TEEE相关器件

型号	品牌	获取价格	描述	数据表
MAX1873TEEE+	MAXIM	获取价格	Battery Charge Controller, BICMOS, PDSO16, 0.150 INCH, 0.025 INCH PITCH, QSOP-16
MAX1873TEEE-T	MAXIM	获取价格	Battery Charge Controller, BICMOS, PDSO16, QSOP-16
MAX1874	MAXIM	获取价格	Dual-Input, USB/AC Adapter, 1-Cell Li+ Charger with OVP and Thermal Regulation
MAX1874	ADI	获取价格	USB/AC适配器双路输入、单节Li+电池充电器，带OVP与温度调节
MAX1874ETE	MAXIM	获取价格	Dual-Input, USB/AC Adapter, 1-Cell Li+ Charger with OVP and Thermal Regulation
MAX1874ETE+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO-220-W
MAX1874ETE-T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO-220WH
MAX1874EVKIT	MAXIM	获取价格	MAX1874 Evaluation Kit
MAX1875	MAXIM	获取价格	Dual 180∑ Out-of-Phase PWM Step- Down Control
MAX1875	ADI	获取价格	双路、180°异相、PWM降压型控制器，带有POR

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