1A charge current with programmable profile
The BQ24013DRCR: Linear charger IC from the bqTINY series for single-cell Li-Ion/Polymer packs. Maximum charge current is 1A, set via an external resistor.
16.5V input tolerance and short-circuit protection
The supply input can handle up to 16.5V, which covers USB bus voltage (5V nominal) and unregulated wall adapters that may rise under light load. On-chip short-circuit protection on the output clamps the current if the battery terminals are accidentally shorted — a basic safety feature for portable designs where the battery pack is user-accessible.