MIC5158 battery charger circuit

Published:2011/6/23 10:10:00 Author:chopper | Keyword: battery charger circuit | From:SeekIC

The constant-current charge circuit of MIC5158 is shown as the following picture.This circuit offers a constant current during the charging process(35mV/R3) until the voltage Uf1 is equal to 1.235(1+R1/R2).As for the formula,Uf1 is floating charge voltage(V).MOSFET tube will be cut off when the circuit reaches the floating charge voltage.Charge current is offered by R4.



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