Texas Instruments bq25570EVM-206 Evaluation Module (EVM)

Texas Instruments bq25570EVM-206 Evaluation Module (EVM) is a complete module for evaluating the bq25570 energy-harvesting charger for storage elements like single-cell Li-Ion/Polymer batteries or super-capacitors. It is intended to be powered by high-impedance supplies, such as solar panels, thermo-electric generators (TEGs), or piezoelectric generators. The bq25570 regulates its input voltage so that it will not collapse its input source while charging the storage element up to a set voltage point. A power good output indicates when the charger's storage element reaches a user-set voltage level. The Texas Instruments bq25570 has an integrated buck regulator that provides a regulated output from the charger output. The evaluation module can also be configured as an ultra-low power boost converter with minimum changes. It can then regulate the output voltage from a low impedance source, while simultaneously providing a second output voltage from the buck regulator.