Dear all,
I would like to characterise the working behavior of the UCC39413 voltage boost converter. I use a 0 to 5 V power supply and a triangular voltage profile to characterise the startup and shut-down behavior. But even though I variated the values of supporting capacitors and inductors, the chip is not starting up, and the output voltage is a maximum of 1V.
SD connected to Vin
RESB connected by 100kOhm to Vout
Capacitor (Vin) 10uF to 100uF
Capacitor (VGd) 10uF to 100uF
Capacitor (Vout) 100uF
Capacitor (CT) 47 nF to 150nF
Inductor 10uH to 100uH
Load: unloaded and 180 Ohm
Diode: 5v6 and 15v schottky diode
shutdown via SD to GND works fine: no output voltage.
Any help is appreciated!
Thank you.
