HP ELITEBOOK 850 G5 ISL9538h area resistor value

[jkyoho]

Hi all,
wish you have a safe and good day.

I recently recevied this HP 850-G5 laptop with blow/bad isl9538H.
Ordered the new ic replaced it still no standby 3.3v or 5v with only 20v@0.0017A drawing. Digging hard for ISL9538h datasheet and realized the CSIP&CSIN current sense line has 2 resistors value goes off. By any chance anyone know what value of this 2 resistor in the CSIP&CSIN lines are.(RED circle)

[jkyoho]

Re: HP ELITEBOOK 850 G5 ISL9538h area resistor value



reference from DELL laptop isl9538h datasheet. It seems to be low resistance or 0 0hm from my guess.

[Soriano]

Re: HP ELITEBOOK 850 G5 ISL9538h area resistor value

measured in main
Left 50 ohm
Right 25 ohm

[mcplslg123]

Re: HP ELITEBOOK 850 G5 ISL9538h area resistor value

I beleive anything around 10-30 ohms will do. value for both resistors should be same.

[Risat]

ISL9538h ic 19 pin (ACIN) single voltage divider resistor value plz

[mon2]

See above schematic, prb05 and prb07 build a voltage divider for the acin pin.

[skazide]

can ISL9538h work for isl9241h ?