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BQ24045: Iset Value

Expert 3851 points
Part Number: BQ24045

If you are using a BQ24045 to have the below charging profile with a charging voltage of 4.35V: 

  • 0C to +10C
  • 100mA
  • +10C to +20C
  • 300mA
  • +20C to 60C
  • 500mA

And configure the Iset for 300mA and then: 

  • Iset2 = Low for 300mA (Iset programmed value)
  • Iset2 = Float for 100mA
  • Iset2 = High for 500mA

Can Iset value be lower than the preset value of 500mA when Iset2 is held high?

Also, when the thermistor detects the temperature is between 0C and 10C the data sheet says the charge current is half of the programmed current. Is that only for Iset value or is it also for Iset2 values of 100mA or 500mA?

Any input is appreciated!