Datasheet > LTC4069

LTC4069

更新时间： 2023-12-20 18:45:02

品牌	Logo	应用领域
亚德诺 - ADI		电池
页数	文件大小	规格书
18页	571K
描述
采用 2mm x 2mm DFN 封装并具有 NTC 热敏电阻输入的独立 750mA 锂离子电池充电器

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LTC4069 数据手册

LTC4069

Standalone 750mA Li-Ion

Battery Charger in 2 × 2 DFN

with NTC Thermistor Input

DescripTion

FeaTures

The LTC^®4069 is a complete constant-current/con-

stant-voltage linear charger for single-cell lithium-ion

batteries. The 2mm × 2mm DFN package and low external

componentcountmaketheLTC4069especiallywell-suited

for portable applications. Furthermore, LTC4069 is specif-

ically designed to work within USB power speciﬁcations.

Complete Linear Charger in 2mm × 2mm DFN

Package

C/10 Charge Current Detection Output

Timer Charge Termination

ChargeCurrentProgrammableUpto750mAwith

5% Accuracy

NoExternalMOSFET,SenseResistororBlocking

The CHRG pin indicates when charge current has dropped

to ten percent of its programmed value (C/10). An

internal timer terminates charging according to battery

manufacturer speciﬁcations.

Diode Required

NTC Thermistor Input for Temperature Qualiﬁed

Charging

Preset 4.2V Float Voltage with 0.6% Accuracy

No external sense resistor or blocking diode is required

due to the internal MOSFET architecture. Thermal feed-

back regulates charge current to limit the die temperature

during high power operation or high ambient temperature

conditions.

Constant-Current/Constant-VoltageOperationwith

Thermal Feedback to Maximize Charge Rate

Without Risk of Overheating

Charge Current Monitor Output for Gas Gauging

Automatic Recharge

Charges Single-Cell Li-Ion Batteries Directly from

When the input supply (wall adapter or USB supply) is

removed, the LTC4069 automatically enters a low current

state, dropping battery drain current to less than 1µA. With

power applied, LTC4069 can be put into shutdown mode,

reducing the supply current to less than 20µA.

USB Port

20µA Supply Current in Shutdown Mode

Soft-Start Limits Inrush Current

Tiny 6-Lead (2mm × 2mm) DFN Package

applicaTions

The LTC4069 also includes automatic recharge, low-bat-

tery charge conditioning (trickle charging), soft-start (to

limit inrush current) and an NTC thermistor input used to

monitor battery temperature.

Wireless PDAs

Cellular Phones

Portable Electronics

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

Technology Corporation. All other trademarks are the property of their respective owners.

Protected by U.S. Patents, including 6522118, 6700364.

The LTC4069 is available in a tiny 6-lead, low proﬁle

(0.75mm) 2mm × 2mm DFN package.

Complete Charge Cycle (1100mAh Battery)

Typical applicaTion

Standalone Li-Ion Battery Charger

500mA

600

4.50

CONSTANT

CURRENT

CONSTANT

VOLTAGE

500

4.25

BAT

LTC4069

CHRG PROG

NTC GND

400

300

4.00

3.75

4.3V TO 5.5V

CHRG

TRANSITION

510Ω

NOM

100k

4.2V

Li-Ion

BATTERY

200

100

3.50

3.25

3.00

CHARGE

TERMINATION

PROG

NTC

100k

1µF

4069 TA01

= 5V

PROG

= 2k

0.5

1.5

2.5

3.5

4.5

TIME (HOURS)

4069 TA01b

4069fc

For more information www.linear.com/LTC4069

12 3 4 5 6 7...18

中文翻译

下载PDF

与LTC4069相关器件

型号	品牌	获取价格	描述	数据表
LTC4069-4.4	Linear	获取价格	Standalone 750mA Li-Ion Battery Charger in 2
LTC4069-4.4	ADI	获取价格	采用 2mm x 2mm DFN 封装并具有 NTC 热敏电阻输入的独立 750mA 锂离
LTC4069EDC	Linear	获取价格	LTC4069 - Standalone 750mA Li-Ion Battery Charger in 2 x 2 DFN with NTC Thermistor Input;
LTC4069EDC#PBF	Linear	获取价格	LTC4069 - Standalone 750mA Li-Ion Battery Charger in 2 x 2 DFN with NTC Thermistor Input;
LTC4069EDC#TRM	Linear	获取价格	LTC4069 - Standalone 750mA Li-Ion Battery Charger in 2 x 2 DFN with NTC Thermistor Input;
LTC4069EDC#TRMPBF	Linear	获取价格	LTC4069 - Standalone 750mA Li-Ion Battery Charger in 2 x 2 DFN with NTC Thermistor Input;
LTC4069EDC-4.4#TRMPBF	Linear	获取价格	LTC4069-4.4 - Standalone 750mA Li-Ion Battery Charger in 2 x 2 DFN with NTC Thermistor Inp
LTC4069EDC-4.4#TRPBF	Linear	获取价格	LTC4069-4.4 - Standalone 750mA Li-Ion Battery Charger in 2 x 2 DFN with NTC Thermistor Inp
LTC4069EDC-4.4-PBF	Linear	获取价格	Standalone 750mA Li-Ion Battery Charger in 2
LTC4069EDC-4.4-TRPBF	Linear	获取价格	Standalone 750mA Li-Ion Battery Charger in 2

与LTC4069相关文章

解读BAV99LT1数据手册：产品特性、电气参数及替换型号推荐
2024-06-18

1
资料解析：P82B96TD引脚图说明、电气参数
2024-06-18

1
ATA6621N数据手册解读：产品特性、引脚图信息、电气参数
2024-06-18

4
一文AO3400引脚图、参数、产品特性
2024-06-18

2

产品中心

服务支持

精选活动

关于我们

帮助中心

LTC4069

LTC4069 数据手册

与LTC4069相关器件

与LTC4069相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LTC4069

LTC4069 数据手册

与LTC4069相关器件

与LTC4069相关文章

您还可以找

您在本页遇到什么问题？