BQ24075T: RISET resistor value

Terry Wu2

Part Number: BQ24075T

Hello sirs,

BQ24075T RISET range is 590 ohm~ 3K ohm. But our target fast charge current is 200mA so that will exceed 3K ohm .(ˋ890/0.2 = 4.4K ohm)

Is there any problem for this ? TKS !

over 7 years ago

0 Bill Johns over 7 years ago

TI__Guru* 75876 points

Hello
Higher resistance will increase the tolerance and output current will vary over wider range. The K-ISET is spec at 797 to 975 and the high and low will increase resulting in greater variation on the charge current.

0 Terry Wu2 over 7 years ago in reply to Bill Johns

Expert 2110 points

Hello John,
I got it. TKS !

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BQ24075T: RISET resistor value