Datasheet > DIO5509

DIO5509

更新时间： 2024-04-09 19:01:06

品牌	Logo	应用领域
帝奥微 - DIOO		/
页数	文件大小	规格书
14页	837K
描述
The DIO5509 is a complete constant-current / constant voltage linear charger for single cell Lithi

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DIO5509 数据手册

Rev 1.4

DIO5509/B/C

250mA Single Cell Li-ion Battery Charger

Features

Descriptions

The DIO5509/B/C 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. The charge

voltage is fixed at 4.2V for DIO5509, 4.35V for

DIO5509B and 4.4V for DIO5509C, and the charge

current can be programmed externally with a

single resistor.



Programmable Charge Current Up to 250mA

Over-Temperature Protection

Under Voltage Lockout Protection

Over Voltage Lockout Protection

Reverse current protection between BAT and

GND pins



Automatic Recharge Threshold

DIO5509: 4.05V

DIO5509B: 4.2V

DIO5509C: 4.25V

The DIO5509/B/C automatically terminates the

charge cycle when the charge current drops to

1/10 the programmed value after the final float

voltage is reached.



Final Float Voltage:

DIO5509: 4.2V

DIO5509B: 4.35V

DIO5509C: 4.4V

When the input supply (wall adapter or USB



Charge Status Output Pin

2.5V Trickle Charge Threshold

supply)

removed,

the

DIO5509/B/C

automatically enters a low current state, dropping

the battery drain current to less than 0.5µA. The

DIO5509/B/C can be put into shutdown mode,

reducing supply current to 18µA (Typ.).

Applications



Wireless phone

MP3/MP4 Player

Bluetooth device

The DIO5509/B/C is available in a small package

with DFN1*1-6. Standard product is Pb-Free.

Ordering Information

Order Part Number

Top Marking

T_A

Package

DIO5509TN6

DIO5509BTN6

DIO5509CTN6

Green

-40 to 85°C

DFN1*1-6

Tape & Reel, 5000

www.dioo.com

DIO5509/B/C • Rev. 1.4

12 3 4 5 6 7...14

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