UB2016 Datasheet, PDF (1/13 Pages) Unisonic Technologies – ONE-CELL STANDALONE LINEAR LITHIUM BATTERY CHARGER

UNISONIC TECHNOLOGIES CO., LTD
UB2016
Preliminary
ONE-CELL STANDALONE
LINEAR LITHIUM BATTERY
CHARGER
CMOS IC
„ DESCRIPTION
UTC UB2016 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 UB2016 especially
well-suited for portable applications using low capacity rechargeable
lithium-ion coin cells. Furthermore, UTC UB2016 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 UB2016 automatically
terminates a charge cycle when the charge current drops to 1/10th
the programmed value after the final float voltage is reached.
„ 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
Lead Free
Halogen Free
UB2016L-xx-AF5-R
UB2016G-xx-AF5-R
Note: xx: Output Voltage, refer to Marking Information.
Package
SOT-25
Packing
Tape Reel
UB2016G-xx-AF5-R
(1)Packing Type
(2)Package Type
(3)Output Voltage Code
(4)Halogen Free
(1) R: Tape Reel
(2) AF5: SOT-25
(3) xx: Refer to Marking Information
(4) G: Halogen Free, L: Lead Free
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