BQ24150A

更新时间： 2024-02-09 03:06:55

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
41页	2603K
描述
Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support

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BQ24150A 数据手册

bq24150A

bq24151A

www.ti.com ..................................................................................................................................................................................................... SLUS931–APRIL 2009

Fully Integrated Switch-Mode One-Cell Li-Ion Charger

With Full USB Compliance and USB-OTG Support

FEATURES

•

Charge Faster than Linear Chargers

–

Output for VBUS: 5.05 V/ 200 mA

•

High-Accuracy Voltage and Current Regulation

•

2 x 2 mm 20-Pin WCSP Package

–

Input Current Regulation Accuracy: ±5%

(100 mA and 500 mA)

APPLICATIONS

•

Mobile and Smart Phones

MP3 Players

Handheld Devices

Charge Voltage Regulation Accuracy:

±0.5% (25°C), ±1% (0°C to 125°C)

Charge Current Regulation Accuracy: ±5%

•

High-Efficiency Mini-USB/AC Battery Charger

for Single-Cell Li-Ion and Li-Polymer Battery

Packs

DESCRIPTION

The bq24150A/1A

compact,

flexible,

high-efficiency, USB-friendly switch-mode charge

management device for single-cell Li-ion and

Li-polymer batteries used in a wide range of portable

applications. The charge parameters can be

programmed through an I²C interface. The

•

20-V Absolute Maximum Input Voltage Rating

6-V Maximum Operating Input Voltage

Built-In Input Current Sensing and Limiting

Integrated Power FETs for Up To 1.25-A

Charge Rate

bq24150A/1A integrates

synchronous PWM

controller, power MOSFETs, input current sensing,

high-accuracy current and voltage regulation, and

charge termination, into a small WCSP package.

•

Programmable Charge Parameters through

I²C™ Interface (up to 3.4 Mbps):

–

Input Current

The bq24150A/1A charges the battery in three

phases: conditioning, constant current and constant

voltage. The input current is automatically limited to

the value set by the host. Charge is terminated based

on user-selectable minimum current level. A safety

timer with reset control provides a safety backup for

I²C interface. During normal operation, bq24150A/1A

automatically restarts the charge cycle if the battery

voltage falls below an internal threshold and

automatically enters sleep mode or high impedance

mode when the input supply is removed. The charge

status is reported to the host using the I²C interface.

Fast-Charge/Termination Current

Charge Voltage (3.5 V to 4.44 V)

Safety Timer with Reset Control

Termination Enable

•

Synchronous Fixed-Frequency PWM

Controller Operating at 3 MHz With 0% to

99.5% Duty Cycle

Robust Protection

–

Reverse Leakage Protection Prevents

Battery Drainage

TYPICAL APPLICATION CIRCUIT

–

Thermal Regulation and Protection

Input/Output Overvoltage Protection

1.0 mH

SNS

BUS

VBUS

bq24150A/1A

BOOT

•

Status Output for Charging and Faults

1 mF

10nF

PACK+

PMID

BOOT

PGND

Automatic High Impedance Mode for Low

Power Consumption

0.1 mF

VAUX

4.7 mF

CSIN

CSOUT

AUXPWR

VREF

10 kW

C BUS

PACK-

10 kW

SCL

SDA

STAT

•

USB Friendly Boot-Up Sequence

SDA

STAT

OTG

AUXPWR

Automatic Charging – bq24150A

OTG

VREF

10 kW

HOST

Automatic High Impedance Mode – bq24151A

Boost Mode Operation for USB OTG:

–

Input Voltage Range (from Battery): 2.5 V to

4.5 V

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.

I2C is a trademark of Philips Electronics.

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...41

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BQ24150A 替代型号

型号	品牌	替代类型	描述	数据表
BQ24150	TI	功能相似	Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG

与BQ24150A相关器件

型号	品牌	获取价格	描述	数据表
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
BQ24150YFFR	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG
BQ24150YFFT	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG
BQ24151	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG
BQ24151A	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG
BQ24151AYFFR	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG
BQ24151AYFFT	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG
BQ24151YFFR	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG
BQ24151YFFT	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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