Datasheet > BQ24152YFFT

BQ24152YFFT

更新时间： 2024-11-16 02:58:03

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
38页	2499K
描述
Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG Support

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BQ24152YFFT 数据手册

bq24152

www.ti.com ...................................................................................................................................................................................................... SLUS847–JUNE 2008

Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and

USB-OTG Support

FEATURES

•

Charge Faster than Linear Chargers

–

Output Voltage for VBUS: 5.05 V

•

High-Accuracy Voltage and Current Regulation

•

1.976 x 1.924mm 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-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 bq24152 is a 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 bq24152 integrates a synchronous

PWM controller, power MOSFETs, input current

•

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

sensing,

high-accuracy

current

and

voltage

•

Programmable Charge Parameters through

I²C™ Interface (up to 3.4 Mbps):

regulation, and charge termination, into a small

WCSP package.

–

Input Current

The bq24152 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, bq24152

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

Termination Enable

•

Synchronous Fixed-Frequency PWM

Controller Operating at 3 MHz with 0% to

99.5% Duty Cycle

Automatic High Impedance Mode for Low

Power Consumption

•

Safety Timer with Reset Control

Typical Application Circuit

Reverse Leakage Protection Prevents Battery

Drainage

1.0 mH

SNS

BUS

VBUS

•

Thermal Regulation and Protection

Input/Output Overvoltage Protection

Status Output for Charging and Faults

USB Friendly Boot-Up Sequence

Automatic Charging

BOOT

10nF

1 mF

bq24152

PACK+

PMID

BOOT

PGND

0.1 mF

VAUX

4.7 mF

CSIN

10 kW

C BUS

PACK-

10 kW

CSOUT

SCL

SDA

STAT

SDA

STAT

OTG

AUXPWR

VREF

AUXPWR

OTG

VREF

10 kW

HOST

Power up System without Battery

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...38

中文翻译

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BQ24152YFFT 替代型号

型号	品牌	替代类型	描述	数据表
BQ24152YFFR	TI	完全替代	Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG
BQ24156AYFFR	TI	类似代替	Fully Integrated Switch-Mode One-Cell Li-Ion Charger
BQ24150AYFFR	TI	类似代替	Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG

与BQ24152YFFT相关器件

型号	品牌	获取价格	描述	数据表
BQ24153	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG
BQ24153A	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger
BQ24153A_17	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG
BQ24153AYFFR	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger
BQ24153AYFFT	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger
BQ24153YFFR	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG
BQ24153YFFT	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG
BQ24155	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance
BQ24155RGYR	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance
BQ24155RGYT	TI	获取价格	Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance

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