BQ24133

更新时间： 2024-10-02 12:21:31

品牌	Logo	应用领域
德州仪器 - TI		电池开关
页数	文件大小	规格书
35页	2391K
描述
1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-Alone Battery Charger with Integrated MOSFETs and Power Path Selector

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BQ24133 数据手册

bq24133

www.ti.com

SLUSAF7B –DECEMBER 2010–REVISED MAY 2011

1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-Alone Battery Charger

with Integrated MOSFETs and Power Path Selector

Check for Samples: bq24133

FEATURES

APPLICATIONS

•

1.6MHz Synchronous Switch-Mode Charger

with 2.5A Integrated N-MOSFETs

Up to 92% Efficiency

30V Input Rating with Adjustable Over-Voltage

Protection

•

Tablet PC

Netbook and Ultra-Mobile Computers

Portable Data Capture Terminals

Portable Printers

Medical Diagnostics Equipment

Battery Bay Chargers

•

–

4.5V to 17V Input Operating Voltage

Battery Charge Voltage

1, 2, or 3-Cell with 4.2V/Cell

High Integration

•

Battery Back-Up Systems

–

DESCRIPTION

–

Automatic Power Path Selector Between

Adapter and Battery

The bq24133 is highly integrated stand-alone Li-ion

and Li-polymer switch-mode battery charger with two

integrated N-channel power MOSFETs. It offers a

constant-frequency synchronous PWM controller with

high accuracy regulation of input current, charge

current, and voltage. It closely monitors the battery

pack temperature to allow charge only in a preset

temperature window. It also provides battery

detection, pre-conditioning, charge termination, and

charge status monitoring. The thermal regulation loop

reduces charge current to maintain the junction

temperature of 120°C during operation.

–

Dynamic Power Management

Integrated 20-V Switching MOSFETs

Integrated Bootstrap Diode

Internal Loop Compensation

Internal Digital Soft Start

•

Safety

–

Thermal Regulation Loop Throttles Back

Current to Limit T_j= 120°C

–

Thermal Shutdown

Battery Thermistor Sense Hot/Cold Charge

The bq24133 charges a one, two, or three cell Li-Ion

battery in three phases: precondictioning, constant

current, and constant voltage.

Suspend & Battery Detect

–

Input Over-Voltage Protection with

Programmable Threshold

Cycle-by-Cycle Current Limit

Charge is terminated when the current reaches 10%

of the fast charge rate. A programmable charge timer

offers a safety back up. The bq24133 automatically

restarts the charge cycle if the battery voltage falls

below an internal threshold, and enters

low-quiescent current sleep mode when the input

voltage falls below the battery voltage.

•

Accuracy

–

±0.5% Charge Voltage Regulation

±5% Charge Current Regulation

±6% Input Current Regulation

•

Less than 15μA Battery Current with Adapter

Removed

Less than 1.5mA Input Current with Adapter

Present and Charge Disabled

Small QFN Package

The bq24133 features Dynamic Power Management

(DPM) to reduce the charge current when the input

power limit is reached to avoid over-loading the

adapter. A highly-accurate current-sense amplifier

enables precise measurement of input current from

adapter to monitor overall system power.

–

3.5mm × 5.5mm QFN-24 Pin

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.

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...35

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与BQ24133相关器件

型号	品牌	获取价格	描述	数据表
bq24133RGYR	TI	获取价格	1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-Alone Battery Charger with Int
bq24133RGYT	TI	获取价格	1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-Alone Battery Charger with Int
BQ24140	TI	获取价格	Fully Integrated Dual-Input Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance a
BQ24140_14	TI	获取价格	Integrated Dual-Input Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB
BQ24140YFFR	TI	获取价格	Fully Integrated Dual-Input Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance a
BQ24140YFFT	TI	获取价格	Fully Integrated Dual-Input Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance a
BQ24150	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG
BQ24150A	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG
BQ24150AYFFR	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG
BQ24150AYFFT	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG

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