The SC7288 is a highly integrated, single-cell, Li-ion/Li
polymer battery charger with system power path
management and I2C interface for space-limited portable
applications. The SC7288 takes input power from either an
AC adapter or a USB port to supply the system load and
charge the battery simultaneously. The SC7288 provide the  
charge management functions including trickle charge,
constant current charge, constant voltage charge, charge
termination and auto-recharge.
The power path management function ensures continuous
power to the system by automatically selecting the input,
battery, or both to power the system. This function features
a low dropout regulator from the input to the system and a
70mΩ switch from the battery to the system. Power path
management separates the charging current from the
system load, which allows for proper charge termination and
keeps the battery in full-charge mode.  
The SC7288 provides a system short-circuit protection (SCP)
function by limiting the current from the input to the system
and the battery to the system. This feature is especially
critical for preventing the Li-ion battery from being damaged
due to an excessively high current. An on-chip battery
under-voltage lockout (UVLO) cuts off the path between the
battery and the system if the battery voltage drops below a
programmable battery UVLO threshold. This prevents the Li
ion battery from being over-discharged. An integrated I2C
control interface allows the SC7288 to program the charging
parameters, such as input current limit, input minimum
voltage regulation, charging current, battery regulation
voltage, safety timer, and battery UVLO.