Hi,
I implemented a current controlled driver with the LM3429.
Vi = 23-25 V
Iout = 350 mA
Vout = 26.1 V
All work fine but I don't know how to modify the treshold for UVLO and OVLO.
The circuit switch correctly but only in a short range of Vi, that is not inside the Vi definition.
When I power up the circuit and start from low level voltage from the imput, the circuit start switching at 21.3 V, and if continue to increase Vi, stop switching at 23.2 V, That is lower thatn normal Vi = 24 V.
When I start to decrease the Vi, then stop switching at 19.6 V.
I would like that circuit work in the Vi range defined Vi = 23-25 V
The UVLO configuration is a resistor divider with a serial resistor as recomended in the disign.
Rivp2 or Ruv2= 10K
Rivp1 or Ruv1 = 620 Ohm
Rdim or Ruvh = 5k49
For OVLO:
Rovp2 = 510 K
Rovp1 = 20 K with a paralel capacitor of 47 pF.
I Just want to start conversion at 23 V and stop at 25 or a lower and uper levels but a minimum this values.
