Datasheet > LTC4098-3.6

LTC4098-3.6

更新时间： 2023-12-20 18:45:05

品牌	Logo	应用领域
亚德诺 - ADI		电池开关
页数	文件大小	规格书
32页	511K
描述
具过压保护功能的 USB 兼容型开关电源管理器/磷酸铁锂电池充电器

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中文翻译

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数据手册

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LTC4098-3.6 数据手册

LTC4098-3.6

USB Compatible Switching

Power Manager/LiFePO Charger

with Overvoltage Protection

FEATURES

DESCRIPTION

Switching Regulator with Bat-Track^TMAdaptive

Output Control Makes Optimal Use of Limited

Power Available from USB Port to Charge Battery

and Power Application

The LTC^®4098-3.6 is a high efﬁciency USB PowerPath

controllerandfull-featuredLiFePO batterycharger.Itseam-

lessly manages power distribution from multiple sources

including USB, wall adapter, automotive, Firewire or other

Charge Control Algorithm Speciﬁcally Designed

high voltage DC/DC converters, and a LiFePO battery.

for LiFePO (Lithium Iron Phosphate)

TheLTC4098-3.6chargealgorithmisoptimizedforLiFePO

Overvoltage Protection Guards Against Damage

Bat-Track External Step-Down Switching Regulator

Control Maximizes Efﬁciency from Automotive,

Firewire and Other High Voltage Input Sources

180mΩ Internal Ideal Diode Plus External Ideal Diode

Controller Seamlessly Provide Low Loss PowerPath^TM

When Input Power Is Limited or Unavailable

Preset 3.6V Charge Voltage with 0.5% Accuracy

Instant-On Operation with Discharged Battery

700mA Maximum Load Current from USB Port

2A Maximum Input Current from Internal Switching

Regulator

by implementing a 1-hour ﬂoat voltage termination timer

and a 0°C to 60°C NTC-based charge qualiﬁcation range.

Furthermore,completelydischargedbatteriesarecharged

at the full programmed charge current.

The LTC4098-3.6’s switching regulator can automatically

limit its input current for USB compatibility. For automo-

tive and other high voltage applications, the LTC4098-3.6

interfaces with an external switching regulator. Both the

USB input and the auxiliary input controller feature Bat-

Track optimized charging to provide maximum power to

theapplicationandreducedheatinhighpowerdensityap-

plications with input supplies from 5V to as high as 38V.

1.5A Maximum Charge Current with Thermal Limiting

20-Lead 3mm × 4mm × 0.75mm QFN Package

An overvoltage protection circuit guards the LTC4098-3.6

from high voltage damage on the VBUS pin with just two

external components.

APPLICATIONS

High Peak Power Battery-Powered Equipment

The LTC4098-3.6 is available in a 20-lead 3mm × 4mm ×

0.75mm QFN surface mount package.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

Bat Track and PowerPath are trademarks of Linear Technology Corporation. All other trademarks

are the property of their respective owners.

Backup Applications

High Reliability Handhelds

Reduced Power Dissipation

vs Linear Battery Charger

3.0

TYPICAL APPLICATION

High Efﬁciency USB Compatible LiFePO₄Battery Charger with Overvoltage Protection

= 5V

PROG = 500Ω

= 1.1A

LINEAR BATTERY

CHARGER

3.3µH

2.5

2.0

1.5

1.0

0.5

CHRG

10x MODE

SYSTEM

LOAD

5V/USB

BUS

10µF

LTC4098-3.6

OVGATE

OVSENS

D0-D2

OUT

ADDITIONAL POWER

6.04k

AVAILABLE FOR CHARGING

TO µC

BAT

CLPROG PROG GND BATSENS

10µF

SWITCHING

BATTERY

CHARGER

0.1µF 3.01k

500Ω

LiFePO

409836 TA01a

2.70

3.00 3.15 3.30

3.45 3.60

2.85

BATTERY VOLTAGE (V)

409836 TA01b

409836f

12 3 4 5 6 7...32

中文翻译

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与LTC4098-3.6相关器件

型号	品牌	获取价格	描述	数据表
LTC4098EPDC#PBF	Linear	获取价格	IC BATTERY CHARGE CONTROLLER, 2650 kHz SWITCHING FREQ-MAX, PQCC20, 4 X 3 MM, 0.75 MM HEIGH
LTC4098EPDC#TRPBF	Linear	获取价格	IC BATTERY CHARGE CONTROLLER, 2650 kHz SWITCHING FREQ-MAX, PQCC20, 4 X 3 MM, 0.75 MM HEIGH
LTC4098EPDC-1#PBF	Linear	获取价格	IC BATTERY CHARGE CONTROLLER, 2650 kHz SWITCHING FREQ-MAX, PQCC20, 4 X 3 MM, 0.75 MM HEIGH
LTC4098EPDC-1#TRPBF	Linear	获取价格	IC BATTERY CHARGE CONTROLLER, 2650 kHz SWITCHING FREQ-MAX, PQCC20, 4 X 3 MM, 0.75 MM HEIGH
LTC4098EPDC-1-PBF	Linear	获取价格	USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection
LTC4098EPDC-1-TRPBF	Linear	获取价格	USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection
LTC4098EPDC-PBF	Linear	获取价格	USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection
LTC4098EPDC-TRPBF	Linear	获取价格	USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection
LTC4098EUDC#PBF	Linear	获取价格	LTC4098/LTC4098-1 - USB Compatible Switching Power Managers/Li-Ion Chargers with Overvolta
LTC4098EUDC-1#PBF	Linear	获取价格	LTC4098/LTC4098-1 - USB Compatible Switching Power Managers/Li-Ion Chargers with Overvolta

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