Datasheet > 3520

3520

更新时间： 2024-11-02 14:53:11

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友顺 - UTC		/
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pc power supply pwm supervisor

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3520 数据手册

UNISONIC TECHNOLOGIES CO., LTD

UB6054A

Preliminary

CMOS IC

ONE-CELL STANDALONE

LINEAR LITHIUM BATTERY

CHARGER



DESCRIPTION

UTC UB6054A is a complete, constant current and constant

voltage linear charger for single cell lithium-ion batteries. Its small

size and ability to regulate low charge currents make UTC UB6054A

especially well-suited for portable applications using low capacity

rechargeable lithium-ion coin cells. Furthermore, UTC UB6054A is

specifically designed to work within USB power specifications.

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, and the charge current can be programmed

externally with a single resistor. UTC UB6054A automatically

terminates a charge cycle when the charge current drops to 1/10th

the programmed value after the final float voltage is reached.

SOT-26



FEATURES

* Programmable Charge Current Up to 500mA.

* No External MOSFET, Sense Resistor or Blocking Diode Required.

* Complete linear charger in ThinSOT Package for Single Cell / Coin

Cell Lithium-lon Batteries.

* Constant Current / Constant Voltage Operation with Thermal

Regulation to Maximize Charge Rate Without Risk of Overheating.

* Charges Single Cell Li-lon Batteries Directly form USB Port.

* Preset 4.2V Charge Voltage with High Accuracy about ±1.2%.

* Automatic Recharge.

* 2.9V Trickle Charge Threshold.

* 20µA Supply Current in Shutdown Mode.

* Charge Status Output Pin.



ORDERING INFORMATION

Ordering Number

UB6054AG-AG6-R

Package

SOT-26

Packing

Tape Reel

UB6054AG-AG6-R

(1) R: Tape Reel

(2) AG6: SOT-26

(3) G: Halogen Free and Lead Free

(1)Packing Type

(2)Package Type

(3)Green Package

www.unisonic.com.tw

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