LTC1734ES6-4.1#TRM

更新时间： 2024-01-09 15:11:23

品牌	Logo	应用领域
凌特 - Linear		电池
页数	文件大小	规格书
12页	184K
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数据手册

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LTC1734

Lithium-Ion Linear

Battery Charger in ThinSOT

FEATURES

DESCRIPTIO

Low Profile (1mm) ThinSOT^TMPackage

The LTC^®1734 is a low cost, single cell, constant-current/

constant-voltage Li-Ion battery charger controller. When

combined with a few external components, the SOT-23

packageformsaverysmall,lowcostchargerforsinglecell

lithium-ion batteries.

■

No Blocking Diode Required

■

No Sense Resistor Required

■

1% Accurate Preset Voltages: 4.1V or 4.2V

■

Charge Current Monitor Output

for Charge Termination

The LTC1734 is available in 4.1V and 4.2V versions with

1% accuracy. Constant current is programmed using a

singleexternalresistorbetweenthePROGpinandground.

Manual shutdown is accomplished by floating the pro-

gram resistor while removing input power automatically

puts the LTC1734 into a sleep mode. Both the shutdown

and sleep modes drain near zero current from the battery.

■

Programmable Charge Current: 200mA to 700mA

■

Automatic Sleep Mode with Input Supply Removal

■

Manual Shutdown

■

Negligible Battery Drain Current in Shutdown

■

Undervoltage Lockout

■

Self Protection for Overcurrent/Overtemperature

Charge current can be monitored via the voltage on the

PROG pin allowing a microcontroller or ADC to read the

currentanddeterminewhentoterminatethechargecycle.

The output driver is both current limited and thermally

protected to prevent the LTC1734 from operating outside

of safe limits. No external blocking diode is required.

APPLICATIO S

■

Cellular Telephones

Handheld Computers

■

Digital Cameras

■

Charging Docks and Cradles

■

Low Cost and Small Size Chargers

The LTC1734 can also function as a general purpose

current source or as a current source for charging nickel-

cadmium (NiCd) and nickel-metal-hydride (NiMH) batter-

ies using external termination.

■

Programmable Current Sources

, LTC and LT are registered trademarks of Linear Technology Corporation.

ThinSOT is a trademark of Linear Technology Corporation.

TYPICAL APPLICATIO

PROG Pin Indicates Charge Status

BAT

300mA Li-Ion Battery Charger

SENSE

LTC1734

1µF

FMMT549

= 300mA

GND

DRIVE

CONSTANT

CURRENT

CONSTANT

VOLTAGE

BAT

PROG

BAT

1.5V

PROG

SINGLE

10µF

Li-Ion

PROG

BATTERY

1734 TA01

CHARGING

BEGINS

CHARGING

COMPLETE

1734 TA01b

12 3 4 5 6 7...12

中文翻译

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与LTC1734ES6-4.1#TRM相关器件

型号	品牌	获取价格	描述	数据表
LTC1734ES6-4.1#TRMPBF	Linear	获取价格	LTC1734 - Lithium-Ion Linear Battery Charger in ThinSOT; Package: SOT; Pins: 6; Temperatur
LTC1734ES6-4.1#TRPBF	Linear	获取价格	LTC1734 - Lithium-Ion Linear Battery Charger in ThinSOT; Package: SOT; Pins: 6; Temperatur
LTC1734ES6-4.2	Linear	获取价格	Lithium-Ion Linear Battery Charger in ThinSOT
LTC1734ES6-4.2#PBF	Linear	获取价格	LTC1734 - Lithium-Ion Linear Battery Charger in ThinSOT; Package: SOT; Pins: 6; Temperatur
LTC1734ES6-4.2#TRM	Linear	获取价格	LTC1734 - Lithium-Ion Linear Battery Charger in ThinSOT; Package: SOT; Pins: 6; Temperatur
LTC1734ES6-4.2#TRMPBF	Linear	获取价格	LTC1734 - Lithium-Ion Linear Battery Charger in ThinSOT; Package: SOT; Pins: 6; Temperatur
LTC1734ES6-4.2#TRPBF	Linear	获取价格	LTC1734 - Lithium-Ion Linear Battery Charger in ThinSOT; Package: SOT; Pins: 6; Temperatur
LTC1734L	Linear	获取价格	Lithium-Ion Linear Battery Charger in ThinSOT
LTC1734L	Linear Systems	获取价格	Standalone 250mA Li-Ion Battery Charger in 2
LTC1734LES6-4.2	Linear	获取价格	Lithium-Ion Linear Battery Charger in ThinSOT

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