Hi Mohamed,
A steady state value of 12V will keep it running once it is already switching.
If you see it falling to 8V, then you are likely falling below the VDD turn-off threshold. I noticed that your VDD capacitance is a little higher than what is…
Part Number: UCC28700-Q1 Tool/software: Hello Can you please help providing the unencrypted spice model of UCC28700-Q1. We have signed the NDA and we wouldn't be able to get the spice model yet. Thanks.
Part Number: UCC28700 Tool/software: Hello Mike,
In that case why the MOSFET turn-off current was taken as I_pri_peak?
As per my understanding I_pri_peak is the peak primary current at V_bulk_min.
According to you it should be the current at V_bulk_max…
Part Number: UCC28700 Tool/software: Hi,
I was referring to the document https://www.ti.com/seclit/ml/slup302/slup302.pdf (Exposing the Inner Behavior of a Quasi-Resonant Flyback Converter).
The switching loss calculation mentioned there in that document…
Hi Harish, You again suggest that I "change the transformer inductance" however, the only way to change the transformer inductance is to change the transformer itself. As I mentioned before, that isn't a viable solution. The UCC28700 is supposed…
Part Number: PMP10200 Other Parts Discussed in Thread: UCC28700 , Tool/software: Hello-
I'm looking to develop a high power (10's kW) DC/DC converter to drive a heater load. PMP10200 outlines an application of the UCC28700 for at least the core of…
Part Number: UCC28700-Q1 Tool/software: Hello,
We are using TI UCC28700-Q1 to design a flyback power supply. A problem was found during test, please help analyze the possible reason:
Design parameters:
Input voltage :60-500Vdc, Output voltage: Second1…
Part Number: UCC28700 Tool/software: We are seeing some devices in production that are utilizing the UCC28700 to convert 120VAC to 5V occasionally do a UVLO reset. We have only seen this on a few devices but have confirmed:
Temperature when it is occurring…
