Datasheet > EC49016B2-F

EC49016B2-F

更新时间： 2024-09-23 01:16:03

品牌	Logo	应用领域
飞虹 - E-CMOS		电池
页数	文件大小	规格书
10页	195K
描述
Standalone Linear Lithium Battery Charger

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中文翻译

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EC49016B2-F 数据手册

EC49016

Standalone Linear Lithium Battery Charger

Features

General Description

ꢀ

Programmable Charge Current Up to 800mA

EC49016 is a complete constant-current & constant

voltage linear charger for single cell lithium-ion and

Lithium-polymer batteries. Its SOT-23 package and low

external component count make EC49016 ideally suited

for portable applications. Furthermore, the EC49016 is

specifically designed to work within USB power

specification. At the same time, EC49016 can also be

used in the standalone lithium-ion and Lithium-polymer

battery chargers.

ꢀ

No MOSFET, Sense Resistor or Blocking Diode

Required

ꢀ

Constant-Current/Constant-Voltage Operation with

Thermal Protection to Maximize Charge Rate

without Risk of Overheating

Charges Single Cell Li-ion Batteries Directly from

USB Port

ꢀ

Preset 4.22V Charge Voltage with +-1% Accuracy

20μA Supply Current in Shutdown

2.9V Trickle Charge Threshold

No external sense resistor is needed, and no

blocking diode is required due to the internal MOSFET

architecture. Thermal feedback regulates the charger

current to limit the die temperature during high power

operation or high ambient temperature. The charge

voltage is fixed at 4.22V, and the charge current can be

programmed externally with a single resistor. The

EC49016 automatically terminates the charge cycle

when the charge current drops to 1/10^ththe

programmed value after the final float voltage is

reached.

Soft-Start Limits Inrush Current

Available in 5-Lead SOT-23 Package

Applications

ꢀ

Cellular Telephones, PDA, MP3 Players

Charging Docks and Cradles

Bluetooth Applications

When the input supply (wall adapter or USB supply)

is removed, the EC49016 automatically enters a low

current stage, dropping the battery drain current to less

than 2μA. The EC49016 can be put into shutdown

mode, reducing the supply current to 20μA.

Pin Configuration

Other features include charge current monitor,

under-voltage lockout, automatic recharge and a status

pin to indicate charge termination and the presence of

an input voltage. EC49016 is interntionally designed to

have slightly negative Tempco. This provides extra

protection to Lithium battery during charging.

Application Diagram

E-CMOS Corp. (www.ecmos.com.tw)

Page 1 of 10

5F04N Rev. F002

12 3 4 5 6 7...10

中文翻译

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与EC49016B2-F相关器件

型号	品牌	获取价格	描述	数据表
EC49017	E-CMOS	获取价格	Standalone Linear Lithium Battery Charger
EC49017NNB3R	E-CMOS	获取价格	Standalone Linear Lithium Battery Charger
EC49017NNMHR	E-CMOS	获取价格	Standalone Linear Lithium Battery Charger
EC49018	E-CMOS	获取价格	1A, Single Cell Linear Lithium Battery Charger
EC49018NNMHR	E-CMOS	获取价格	1A, Single Cell Linear Lithium Battery Charger
EC49020	E-CMOS	获取价格	High Efficiency 2A 1.5MHz Single Cell Li-ion Battery Switching Charger
EC49020BSMHR	E-CMOS	获取价格	High Efficiency 2A 1.5MHz Single Cell Li-ion Battery Switching Charger
EC49020BSMHT	E-CMOS	获取价格	High Efficiency 2A 1.5MHz Single Cell Li-ion Battery Switching Charger
EC49020XSMHR	E-CMOS	获取价格	High Efficiency 2A 1.5MHz Single Cell Li-ion Battery Switching Charger
EC49020XSMHT	E-CMOS	获取价格	High Efficiency 2A 1.5MHz Single Cell Li-ion Battery Switching Charger

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