The FRDM-BC3770-EVM is a Freedom Expansion Board offers a fully programmable switching charger with dual-path output for single-cell Li-ion and Li-polymer batteries. It works with the FRDM-KL25Z development platform (included pre-programmed with mini-USB cables). A BC3770 highly integrated synchronous switch-mode chargers, featuring integrated OVP and power FETs. A FRDM-KL25Z for SPI communication and IO control. Operate as a boost regulator for USB-OTG function via either I2C command or an external pin from the host/processor. This dual-path output allows mobile applications with fully discharged battery or dead battery to boot up the system.
Supports different modes of operation (charging and power management)
Dynamically shares current between the application and battery on demand
Reduces heat dissipation and allows for higher current capability for a given package size
Includes protection features to avoid damaging the downstream components
