Datasheet > BL8572

BL8572

更新时间： 2024-11-14 12:23:07

品牌	Logo	应用领域
上海贝岭 - BELLING		/
页数	文件大小	规格书
11页	363K
描述
The BL8572 is a single cell, fully integrated

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中文翻译

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数据手册

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BL8572 数据手册

BL8572

■

FEATURES

■

GENERAL DESCRIPTION

The BL8572 is a single cell, fully integrated

constant current (CC)/constant voltage (CV) Li-ion

battery charger. Its compact package with

minimum external components requirement makes

the BL8572 ideal for portable applications.

•

Standalone

Requirement of External MOSFET, Sense

Resistor or Blocking Diode.

Complete Linear Charger in Compact

Package for Single Cell Lithium-Ion

Batteries

Programmable Pre-charge, Fast Charge

and Termination Current.

Constant-Current/Constant-Voltage

Operation with Thermal Regulation to

Maximize Charge Rate Without Risk of

Overheating

Charges Single Cell Li-Ion Batteries

Directly from USB Port

Preset 4.2V Charge Voltage with ±1%

Accuracy

Automatic Recharge

Capability

with

•

No external sense resistor or blocking diode is

necessary for the BL8572. Build-in thermal

feedback mechanism regulates the charge current

to control the die temperature during high power

operation or at elevated ambient temperature.

•

The BL8572 has a pre-charge function for trickle

charging deeply discharged batteries. The fast

charge current can be programmed by an external

resistor. CV regulation mode is automatically

enabled once the battery’s charging curve reaches

the constant voltage portion. The output current

then decays and is finally terminated once the

charge current drops to 1/10^thof the programmed

value. The BL8572 keeps monitoring the battery

voltage and enables a new charge cycle once the

voltage drops by 150mV below the CV value.

•

Charge Status Output Pin

C/10 Charge Termination

25µA Supply Current in Shutdown

2.9V Trickle Charge Threshold

Soft-Start Limits Inrush Current

Available in 5-Lead SOT-23 Package

Power supply state is constantly monitored and the

battery drain current is reduced to minimum value

automatically when the BL8572 senses a lack of

input power. In its shutdown mode, the BL8572

can reduce the supply current to less than 25µA. A

status pin outputs a logic HIGH/LOW to indicate

the charging status and the presence of power

supply.

■

APPLICATIONS

•

Cellular Telephones, PDAs, MP3 Players

Charging Docks and Cradles

Bluetooth Applications

Other features include charge current monitor,

under-voltage lockout.

■

APPLICATION CIRCUIT

http://www.belling.com.cn

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Total 11 Pages

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与BL8572相关器件

型号	品牌	获取价格	描述	数据表
BL8573	BELLING	获取价格	500mA/1.5A Standalone Linear Li-Ion Battery Charge
BL8573CB6TR	BELLING	获取价格	500mA/1.5A Standalone Linear Li-Ion Battery Charge
BL8573CB6TR435	BELLING	获取价格	500mA/1.5A Standalone Linear Li-Ion Battery Charge
BL8573CS8TR	BELLING	获取价格	500mA/1.5A Standalone Linear Li-Ion Battery Charge
BL8573CS8TR435	BELLING	获取价格	500mA/1.5A Standalone Linear Li-Ion Battery Charge
BL8578	BELLING	获取价格	Max.2A Li-ion Switching Charger IC
BL8578_16	BELLING	获取价格	Max.2A Li-ion Switching Charger IC
BL8578CKATR42	BELLING	获取价格	Max.2A Li-ion Switching Charger IC
BL8578CKATR435	BELLING	获取价格	Max.2A Li-ion Switching Charger IC
BL8580	BELLING	获取价格	CMOS based White/Blue LED driver

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