Datasheet > BL8578CKATR42

BL8578CKATR42

更新时间： 2024-11-15 01:07:47

品牌	Logo	应用领域
上海贝岭 - BELLING		/
页数	文件大小	规格书
6页	1059K
描述
Max.2A Li-ion Switching Charger IC

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中文翻译

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数据手册

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BL8578CKATR42 数据手册

BL8578

Max.2A Li-ion Switching Charger IC

DESCRIPTION

FEATURES

The BL8578 is a 2A Li-Ion battery switching

charger intended for 5V adapters. Low power

dissipation, an internal MOSFET and its compact

package with minimum external components

requirement makes the BL8578 ideal for portable

applications. The BL8578 includes complete

charge termination circuitry, automatic recharge

and a ±1% 4.2V/4.35V float voltage.



Very Low Power Dissipation

2A Maximum Charge Current

Standalone Capability with no Requirement

of External MOSFET, Sense Resistor or

Blocking Diode

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

Drainage Charge Current Thermal Regulation

Status Outputs for LED or System Interface

Preset 4.2V/4.35V float Voltage with ±1%

Accuracy



External sense resistor and Reverse diode is not

need. Build-in thermal feedback mechanism

regulates the charge current to control the die

temperature during high power operation or at

elevated ambient temperature.



Automatic Recharge

Available in DFN3x3-10L Package

RoHS Compliant and 100% Lead (Pb)-Free

Battery charge current, charge timeout and end-

of-charge indication parameters can program by

external components. Additional features include

shorted cell detection and overvoltage protection.

APPLICATIONS



Cellular Telephones, PDA, MP3 Players

Charging Docks and Cradles

Handheld Battery-Powered Devices

Handheld Computers

The BL8578 is available in DFN3x3-10L package.

TYPICAL APPLICATION

PIN OUT & MARKING

68pF

1uH

CHRG

ISET

Ctrl

BAT

CHRIN

GND

CHRG

ISET

Ctrl

BAT

CHRIN

GND

5V USB

Input

To 4.2V

Li-Ion Battery

VIN

Ctrl

BAT

LC6101

BL8578

120K

CHRIN

VIN

10uF

10k

10uF

ISET

75K

RISET

330

4.2V

4.35V

CHRG

10uF

GND

OFF

DFN3x3-10L

BG: Product Code

Device parameter should be select as typical application

LL: LOT NO. H: FAB Code

YW: Date code (Year & Week)

www.belling.com.cn

12 3 4 5 6

中文翻译

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