Rainbow-electronics MAX17047 Manual de usuario descargar pdf (Pagina 1)

MAX17047

ModelGauge m3 Fuel Gauge

�� Maxim Integrated Products 1

Simplified Operating Circuit

19-6008; Rev 0; 9/11

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part,

refer to: www.maxim-ic.com/MAX17047.related

ModelGauge is a trademark of Maxim Integrated Products, Inc.

General Description

The MAX17047 incorporates the Maxim ModelGauge™

m3 algorithm that combines the excellent short-term

accuracy and linearity of a coulomb counter with the

excellent long-term stability of a voltage-based fuel gauge,

along with temperature compensation to provide industry-

leading fuel-gauge accuracy. ModelGauge m3 cancels

offset accumulation error in the coulomb counter, while

providing better short-term accuracy than any purely

voltage-based fuel gauge. Additionally, the ModelGauge

m3 algorithm does not suffer from abrupt corrections that

normally occur in coulomb-counter algorithms, since tiny

continual corrections are distributed over time.

The device automatically compensates for aging, tem-

perature, and discharge rate and provides accurate

state of charge (SOC) in mAh or % over a wide range of

operating conditions. The device provides two methods

for reporting the age of the battery: reduction in capacity

and cycle odometer.

The device provides precision measurements of current,

voltage, and temperature. Temperature of the battery

pack is measured using an external thermistor supported

by ratiometric measurements on an auxiliary input. A

2-wire (I

C) interface provides access to data and control

registers. The IC is available in a lead(Pb)-free, 3mm x

3mm, 10-pin TDFN package.

Applications

Features

S Accurate Battery-Capacity Estimation

 Temperature, Age, and Rate Compensated

 Does Not Require Empty, Full, or Idle States to

Maintain Accuracy

S Precision Measurement System

 No Calibration Required

S ModelGauge m3 Algorithm

 Long-Term Influence by Voltage Fuel Gauge

Cancels Coulomb-Counter Drift

 Short-Term Influence by Coulomb Counter

Provides Excellent Linearity

 Adapts to Cell Characteristics

S External Temperature-Measurement Network

Actively Switched Thermistor Resistive Divider

 Reduces Current Consumption

S Low Quiescent Current

 25µA Active, < 0.5µA Shutdown

S Alert Indicator for SOC, Voltage, Temperature, and

Battery Removal/Insertion Events

S AtRate Estimation of Remaining Capacity

S 2-Wire (I

C) Interface

S Tiny, Lead(Pb)-Free, 3mm x 3mm, 10-Pin TDFN

Package

2.5G/3G/4G Wireless

Handsets

Smartphones/PDAs

Tablets and Handheld

Computers

Portable Game Players

e-Readers

Digital Still and Video

Cameras

Portable Medical Equipment

0.1µF0.1µF

OPTIONAL

10nF

OPTIONAL

10kI

PK-

PK+

OPTIONAL

10kI

NTC

THERMISTOR

10mI

RSNS

CSP

REG

AIN SCL

THRM

BATT

CSNEP

SDA

ALRT

MAX17047

PROTECTION

SYSTEM

BATTERY PACK

HOST

µP

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

1 2 3 4 5 6 ... 45 46

MAX17047 1
ModelGauge m3 Fuel Gauge 1

Indice de contenidos

Pagina 1 - ModelGauge m3 Fuel Gauge

MAX17047ModelGauge m3 Fuel Gauge �� Maxim Integrated Products 1Simplified Operating

Pagina 2

�� Maxim Integrated Products 10MAX17047ModelGauge m3 Fuel GaugeFigure 4. ModelGauge

Pagina 3

�� Maxim Integrated Products 11MAX17047ModelGauge m3 Fuel Gauge• Cell Capacity (

Pagina 4

�� Maxim Integrated Products 12MAX17047ModelGauge m3 Fuel GaugeFigure 6. Operating

Pagina 5

�� Maxim Integrated Products 13MAX17047ModelGauge m3 Fuel GaugeFigure 7. Proper Boa

Pagina 6

�� Maxim Integrated Products 14MAX17047ModelGauge m3 Fuel GaugeFigure 8. ModelGauge

Pagina 7

�� Maxim Integrated Products 15MAX17047ModelGauge m3 Fuel GaugeModelGauge Algorithm

Pagina 8

�� Maxim Integrated Products 16MAX17047ModelGauge m3 Fuel GaugeRemCapREP Register (

Pagina 9

�� Maxim Integrated Products 17MAX17047ModelGauge m3 Fuel GaugeFigure 15. SOCVF Reg

Pagina 10

�� Maxim Integrated Products 18MAX17047ModelGauge m3 Fuel GaugeCycles Register (17h

Pagina 11

�� Maxim Integrated Products 19MAX17047ModelGauge m3 Fuel GaugeFigure 21. FullCapNo

Pagina 12

�� Maxim Integrated Products 2MAX17047ModelGauge m3 Fuel GaugeVBATT, SDA, SCL, ALR

Pagina 13

�� Maxim Integrated Products 20MAX17047ModelGauge m3 Fuel GaugeFullSOCThr Register

Pagina 14

�� Maxim Integrated Products 21MAX17047ModelGauge m3 Fuel GaugeWhen a proper end

Pagina 15

�� Maxim Integrated Products 22MAX17047ModelGauge m3 Fuel GaugeICHGTerm Register (1

Pagina 16

�� Maxim Integrated Products 23MAX17047ModelGauge m3 Fuel GaugeCell Characterizatio

Pagina 17

�� Maxim Integrated Products 24MAX17047ModelGauge m3 Fuel GaugeRelaxCFG Register (2

Pagina 18

�� Maxim Integrated Products 25MAX17047ModelGauge m3 Fuel GaugeFigure 33. MiscCFG R

Pagina 19

�� Maxim Integrated Products 26MAX17047ModelGauge m3 Fuel GaugeMR4:MR0—Mixing Rate.

Pagina 20

�� Maxim Integrated Products 27MAX17047ModelGauge m3 Fuel GaugePower-Up and Power-O

Pagina 21

�� Maxim Integrated Products 28MAX17047ModelGauge m3 Fuel GaugeNote that some re

Pagina 22

�� Maxim Integrated Products 29MAX17047ModelGauge m3 Fuel GaugeFigure 37. Operation

Pagina 23

�� Maxim Integrated Products 3MAX17047ModelGauge m3 Fuel GaugeNote 1: Specificat

Pagina 24

�� Maxim Integrated Products 30MAX17047ModelGauge m3 Fuel GaugeModes of OperationTh

Pagina 25

�� Maxim Integrated Products 31MAX17047ModelGauge m3 Fuel GaugeALRT FunctionThe Al

Pagina 26

�� Maxim Integrated Products 32MAX17047ModelGauge m3 Fuel GaugeSALRT Threshold Regi

Pagina 27

�� Maxim Integrated Products 33MAX17047ModelGauge m3 Fuel GaugeNote that if this bi

Pagina 28

�� Maxim Integrated Products 34MAX17047ModelGauge m3 Fuel GaugeTHR2:THR0—Sets the

Pagina 29

�� Maxim Integrated Products 35MAX17047ModelGauge m3 Fuel GaugeVersion Register (21

Pagina 30

�� Maxim Integrated Products 36MAX17047ModelGauge m3 Fuel Gaugevalues. If VCELL is

Pagina 31

�� Maxim Integrated Products 37MAX17047ModelGauge m3 Fuel GaugeAverageCurrent Regis

Pagina 32

�� Maxim Integrated Products 38MAX17047ModelGauge m3 Fuel GaugeFor easiest softwa

Pagina 33

�� Maxim Integrated Products 39MAX17047ModelGauge m3 Fuel GaugeFigure 56. AIN Regis

Pagina 34

�� Maxim Integrated Products 4MAX17047ModelGauge m3 Fuel GaugeTypical Operating Ch

Pagina 35

�� Maxim Integrated Products 40MAX17047ModelGauge m3 Fuel Gaugethe maximum or less

Pagina 36

�� Maxim Integrated Products 41MAX17047ModelGauge m3 Fuel GaugeFigure 61. TOFF Regi

Pagina 37

�� Maxim Integrated Products 42MAX17047ModelGauge m3 Fuel GaugeTable 5. Device Memo

Pagina 38

�� Maxim Integrated Products 43MAX17047ModelGauge m3 Fuel Gauge2-Wire Bus SystemThe

Pagina 39

�� Maxim Integrated Products 44MAX17047ModelGauge m3 Fuel Gaugemonitoring the ack

Pagina 40

�� Maxim Integrated Products 45MAX17047ModelGauge m3 Fuel GaugePackage InformationF

Pagina 41

MAX17047ModelGauge m3 Fuel GaugeMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim prod

Pagina 42

�� Maxim Integrated Products 5MAX17047ModelGauge m3 Fuel GaugeTypical Operating Ch

Pagina 43

�� Maxim Integrated Products 6MAX17047ModelGauge m3 Fuel GaugeTypical Operating Ch

Pagina 44

�� Maxim Integrated Products 7MAX17047ModelGauge m3 Fuel GaugePin DescriptionPin C

Pagina 45

�� Maxim Integrated Products 8MAX17047ModelGauge m3 Fuel GaugeBlock DiagramDetaile

Pagina 46

�� Maxim Integrated Products 9MAX17047ModelGauge m3 Fuel Gaugethe system is bou

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