ME4054Series_E3.0微盟原厂规格书.pdf

ME4054 Standalone Linear Li-Ion Battery Charger in ThinSOT ME4054-4.2V General Description Features ME4054 is a constant-current/constant-voltage linear  Programmable Charge Current Up to 800mA charger for single cell lithium-ion batteries. Its Thin SOT  No MOSFET, Sense Resistor or Blocking package and low external component count make the Diode Required ME4054 ideally suited for portable applications.  Complete Linear Charger in ThinSOT Package Furthermore, the ME4054 is specifically designed to work for Single Cell Lithium-Ion Batteries within USB power specifications.  Constant-Current/Constant-Voltage Operation No external sense resistor is needed, and no blocking with Thermal Regulation to Maximize Charge diode is required due to the internal MOSFET architecture. Rate Without Risk of Overheating Thermal feedback regulates the charge current to limit the  Charges Single Cell Li-Ion Batteries Directly die temperature during high power operation or high from USB Port  Preset 4.2V Charge Voltage with ±1% ambient temperature. The charge voltage is fixed at 4.2V, 5 0 and the charge current can be programmed externally with Accuracy 3 a single resistor. The ME4054 automatically terminates he  Automatic Recharge 3 charge cycle when the charge current drops to 1/10th the  Charge Status Output Pin 1 5 programmed value after the final float voltage is reached.