Hi There!!!
I am having issues with LT8490 to startup to charge,
My charger configuration is:-
Input:- 50V, 3.75A
Output:- 40V, 3.8A
1) I am using simulated loads at input (40V) and output (40V power supply with 4A constant current load)
2) I have disabled MPPT (VNIR pin=0V )
3) I have disabled temperature sensing (11.5k/ 10k resistor divider with 0.1uF)
I have verified the following:-
Vin=39.9V
SHDN= logic high (9.52V)
INTVCC= GATEVCC= 6.35V
LDO33= 3.28V
FBOUT= 0.972V
FBIN= Oscillating
SWEN= OV (not enabling the chip. Don't know the reason)
However SWEN is connected to SWENO via pulldown as shown in the PDF of schematic
CLKOUT= 0V (As chip is not enabled )
I have attached my other pins measurement here:-
Could someone please guide me why is the SWEN pin not turning ON?
