Datasheet > EC49018NNMHR

EC49018NNMHR

更新时间： 2024-09-23 01:18:19

品牌	Logo	应用领域
飞虹 - E-CMOS		电池
页数	文件大小	规格书
8页	318K
描述
1A, Single Cell Linear Lithium Battery Charger

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EC49018NNMHR 数据手册

EC49018

1A, Single Cell Linear Lithium Battery Charger

Features

General Description



Programmable Charge Current Up to 1000mA

The EC49018 is a complete constant - current &

constant-voltage linear charger for single cell lithium-ion

batteries. Its SOP-8(Exposed PAD) package and low

external component count make the EC49018 ideally

suited for portable applications. In addition, the

EC49018 can work within USB and wall adapter.

No blocking diode is required because of its

internal PMOSFET architecture which is able to prevent

the negative Charge Current. Thermal feedback

regulates the charge current to limit the die temperature

during high power operation or high ambient

temperature. The charge voltage is fixed at 4.2V, and

the charge current can be programmed externally with a

single resistor. The EC49018 automatically terminates

the charge cycle when the charge current drops to

1/10th the programmed value after the final float voltage

is reached.



No MOSFET, Sense Resistor or Blocking Diode

Required



Complete Linear Charger in SOP-8 Package for

Single Cell Lithium-Ion Batteries

Constant-Current/Constant-Voltage

Charges Single Cell Li-Ion Batteries Directly

from USB Port



Preset 4.2V Charge Voltage with ±1.5% Accuracy

Automatic Recharge



Two Charge Status Output Pins

C/10 Charge Termination

2.9V Trickle Charge Threshold

Soft-Start Limits Inrush Current

Available Radiator in SOP-8(Exposed PAD)

Package, the Radiator need connect GND or

impending

EC49018 Other features include current monitor, under

voltage lockout, automatic recharge and two status pin

to indicate charge termination and the presence of an

input voltage.

Applications



Cellular Telephones, PDA, MP3 Players

Charging Docks and Cradles

MP3、MP4 Player

Digital Still Cameras, Portable Devices

USB Bus-Powered Chargers, Chargers

Application Diagram

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

Page 1 of 8

3H20N Rev. P001

12 3 4 5 6 7 8

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