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BQ24650: BQ24650

Part Number: BQ24650

HI,

  Can i use this IC to charge 24 V Lead Acid battery with input voltage of 26V?

  • Hi Uma,

       Keep in mind the max charge voltage of your battery, and not the nominal voltage, as the output voltage of the BQ24650 IC should correspond to max charge regulation voltage of the battery. Depending on charge current, external components should be chosen accordingly to minimize voltage drop at the input (RDSon, fwd voltage drop of diode, trace impedance et). This is because you have small delta between input and output voltage, and you want to avoid the SLEEP threshold being hit, as this is the minimum delta between input and output voltage, for which charger can operate.