Install indicator light on ETA3000 SOT23-6 without STAT pin
Pay attention to the setting of the ISET pin resistance. If it is greater than 1A and does not strengthen heat dissipation, it may easily cause the chip to burn out.
V3 ( 4-string PCB and 7-string PCB are modified to V3, other V2 versions do not add TVS and Schottky)
TVS tube and Schottky are added to prevent reverse connection and overvoltage ( other circuits have not been modified)
In actual use, it was found that after adding TVS tubes and Schottky, the balance current decreased, and the problem of chip burning no longer occurred.
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