SLUSA78C July 2010 – July 2015
PRODUCTION DATA.
An external resistor voltage divider attenuates the adapter voltage before it goes to ACDET. The adapter detect threshold should typically be programmed to a value greater than the maximum battery voltage, but lower than the IC maximum allowed input voltage and system maximum allowed voltage.
When adapter is removed, the system is powered by the battery. Typically the battery depletion threshold should be greater than the minimum system voltage so that the battery capacity can be fully utilized for maximum battery life.