JAJSFE5C October 2009 – May 2018 TPS65720 , TPS65721
PRODUCTION DATA.
During the fast-charge phase, several events increase the timer durations.
During each of these events, the internal timers are slowed down proportionately to the reduction in charging current. For example, if the charging current is reduced by half, the fast-charge timer is twice as long as programmed.
A modified charge cycle with the thermal loop active is shown in Figure 12.