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UB6054A Datasheet(PDF) 1 Page - Unisonic Technologies |
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UB6054A Datasheet(HTML) 1 Page - Unisonic Technologies |
1 / 13 page UNISONIC TECHNOLOGIES CO., LTD UB6054A Preliminary CMOS IC www.unisonic.com.tw 1 of 13 Copyright © 2014 Unisonic Technologies Co., Ltd QW-R502-926.b 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. 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. SOT-26 4 5 3 2 1 6 ORDERING INFORMATION Ordering Number Package Packing UB6054AG-AG6-R SOT-26 Tape Reel UB6054AG-AG6-R (1)Packing Type (2)Package Type (1) R: Tape Reel (2) AG6: SOT-26 (3) G: Halogen Free and Lead Free (3)Green Package |
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