The MEZS7-SolarCharger is a complete solution module that uses the MP2731 NVDC buck charger with an MCU for maximum power point tracking (MPPT) designs with a photovoltaic (PV) panel.
The MP2731 charger used in the solution fully integrates power switches with built-in robust charging protections including JEITA, a configurable safety timer, voltage- and current-sensing circuitry, ADC, and an I2C interface, which all significantly reduce system cost. The integrated reverse-blocking FET blocks the path from the battery load to the PV panel when the panel is under low irradiance.
The input voltage/current and output voltage/current are sampled through an 8-bit ADC, which can be easily communicated to the external MCU through the I2C interface.
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