Simple Li-Ion charge termination using the LT1505
Mark Gurries
Abstract
A simple Li-Ion charge termination using the LT1505 is described.
Keywords
Li-Ion battery
charge termination
LT1505
Li-Ion batteries are normally charged with a current limited constant voltage for a fixed length of time. At the end of this time period, the voltage must be removed to prevent internal chemistry changes in the battery. At a minimum, a timer is needed to terminate the charging process after the maximum amount of time required to fully charge the battery. However, if the battery is never fully discharged, this overall time period is too long, forcing a longer charge cycle than is really needed. One of the ways to determine when a Li-Ion ...
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