LibreSolar MPPT-2420-LC and mppt-2420-hc

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MPPT-2420-LC

Deprecated, new design mppt-2420-hc

22uH Inductor, working at 70 KHz
LM5107 MOSFET drive
Power supply with MP2459, AZ1117, AP2210-3.3
PCB

mppt-2420-hc

LM5107 gate driver
Power supply. The Supply rail selection uses HV first, then switches to LV as soon as its available for reduced supply input and increased efficiency. Some Lithium BMS require a „start impulse“ to activate. 3.3V SMPS with LMR16006X (60V 0.6A). The charge pump supplies high-side gate drive voltage for the load switch (see below).

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