BQ24105

更新时间： 2024-11-14 22:50:19

品牌	Logo	应用领域
德州仪器 - TI		开关
页数	文件大小	规格书
26页	613K
描述
SYNCHRONOUS SWITCHMODE, LI-ION AND LI-POL CHARGE MANAGEMENT IC WITH INTEGRATED POWERFETS

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替代型号

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BQ24105 数据手册

bq24100, bq24103

bq24105, bq24108

Actual Size

5,5 mm x 3,5 mm

bq24113, bq24115

www.ti.com

SLUS606C–JUNE 2004–REVISED SEPTEMBER 2005

SYNCHRONOUS SWITCHMODE, LI-ION AND LI-POLYMER CHARGE-MANAGEMENT

IC WITH INTEGRATED POWER FETs (bqSWITCHER™)

FEATURES

APPLICATIONS

•

Handheld Products

•

Ideal For Highly Efficient Charger Designs For

Single-, Two- or Three-Cell Li-Ion and

Li-Polymer

Battery Packs

Portable Media Players

Industrial and Medical Equipment

Portable Equipment

•

Integrated Synchronous Fixed-Frequency

PWM Controller Operating at 1.1 MHz With

0% to 100% Duty Cycle

DESCRIPTION

The bqSWITCHER™ series are highly integrated

•

Integrated Power FETs For Up To 2-A Charge

Rate

Li-ion

and

Li-polymer

switch-mode

charge

management devices targeted at a wide range of

portable applications. The bqSWITCHER™ series

offers integrated synchronous PWM controller and

power FETs, high-accuracy current and voltage

regulation, charge preconditioning, charge status, and

charge termination, in a small, thermally enhanced

QFN package. The system-controlled version

provides additional inputs for full charge management

under system control.

High-Accuracy Voltage and Current

Regulation

Available In Both Stand-Alone (Built-In Charge

Management and Control) and

System-Controlled (Under System Command)

Versions

•

Status Outputs For LED or Host Processor

Interface Indicates Charge-In-Progress,

Charge Completion, Fault, and AC-Adapter

Present Conditions

The bqSWITCHER charges the battery in three

phases: conditioning, constant current, and constant

voltage. Charge is terminated based on user-

selectable minimum current level. A programmable

charge timer provides a safety backup for charge

termination. The bqSWITCHER automatically restarts

the charge cycle if the battery voltage falls below an

internal threshold. The bqSWITCHER automatically

enters sleep mode when V_CCsupply is removed.

•

20-V Maximum Voltage Rating on IN and OUT

Pins

•

High-Side Current Sensing

Optional Battery Temperature Monitoring

Automatic Sleep Mode for Low Power

Consumption

•

System-Controlled Version Can Be Used In

NiMH and NiCd Applications

•

Uses Ceramic Capacitors

Reverse Leakage Protection Prevents Battery

Drainage

•

Thermal Shutdown and Protection

Built-In Battery Detection

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

bqSWITCHER, PowerPAD are trademarks of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...26

中文翻译

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BQ24105 替代型号

型号	品牌	替代类型	描述	数据表
BQ24103	TI	功能相似	SYNCHRONOUS SWITCHMODE, LI-ION AND LI-POL CHARGE MANAGEMENT IC WITH INTEGRATED POWERFETS
BQ24100	TI	功能相似	SYNCHRONOUS SWITCHMODE, LI-ION AND LI-POL CHARGE MANAGEMENT IC WITH INTEGRATED POWERFETS

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BQ24108RHLR	TI	获取价格	SYNCHRONOUS SWITCHMODE, LI-ION AND LI-POL CHARGE MANAGEMENT IC WITH INTEGRATED POWERFETS
BQ24108RHLRG4	TI	获取价格	SYNCHRONOUS SWITCHMODE, LI-ION AND LI-POLYMER
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