1. General Description ZCC5518 is a highly integrated synchronous  boost charger IC for Lithium-ion batteries  with four cells in series. The charge  current up to 1A can be programmed by using  the external resistor for different  portable applications. Robust protections include input overvoltage protection (OVP), battery OVP,  battery short protection, thermal shut  down, battery temperature monitor, a  configurable timer to prevent prolonged  charging of a dead battery. 

2. Features  3.0V to 5.5V Operating Input Voltage  Up to 26V Sustainable Voltage  Up to 1A Configurable Charge Current  for Battery with 4 Cells in Series

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