Datasheet > DIO5518B

DIO5518B

更新时间： 2024-09-25 17:01:19

品牌	Logo	应用领域
帝奥微 - DIOO		/
页数	文件大小	规格书
13页	1347K
描述
The DIO5518B is a complete constant-current / constant voltage linear charger for single cell Lith

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DIO5518B 数据手册

Rev 1.3

DIO5518B

800mA，Single Li-ion Battery Charger

Features

Descriptions

The DIO5518B is a complete constant-current /

constant voltage linear charger for single cell

Lithium-Ion batteries. No external sense resistor

is needed, and no blocking diode is required due

to the internal MOSFET architecture. 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.



Over-Temperature Protection

Under Voltage Lockout Protection

Over Voltage Lockout Protection

Reverse current protection between BAT and

GND pins



Automatic Recharge Threshold 4.05V(Typ.)

Charge Status Output Pin

2.9V Trickle Charge Threshold

Soft-Start Limits Inrush Current

The DIO5518B automatically terminates the

charge cycle when the charge current drops to

1/10 the programmed value after the final float

voltage is reached.

When the input supply (wall adapter or USB

supply) is removed, the DIO5518B automatically

enters a low current state, dropping the battery

drain current to less than 0.5µA. The DIO5518B

can be put into shutdown mode, reducing supply

current to 40µA (Typ.).

Applications



Wireless phone

MP3/MP4 Player

Bluetooth device

The DIO5518B is available in a small package with

SOT23-5. Standard product is Pb-Free.

Ordering Information

Order Part Number

Top Marking

T_A

Package

DIO5518BST5

W518

Green

-40 to 85°C

SOT23-5

Tape & Reel, 3000

www.dioo.com

DIO5518B• Rev. 1.3

12 3 4 5 6 7...13

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