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Other Parts Discussed in Thread: UCC28061 Hi,
In continuation of the previous post which I made ("UCC28061: Power MOSFETs blown up sometimes") I want to share the new measurement with you and exploring the possible issue with the MOSFETs in…
Hello Aravind,
The VFF pin of the UCC2818A-Q1 ( and others in this family) do not use a potential divider. The VFF voltage is developed from 1/2 of IAC current mirrored into the VFF resistor and filtered with the VFF capacitor. The VFF and IAC pin functions…
Part Number: UCC28061 Other Parts Discussed in Thread: LM5022 , , UCC28065 , UCC28070 , LM5122
Tool/software:
What is the range of the input and output voltage?
input voltage: 20V ; output voltage: 50V ,operating in CCM mode could it be possible?
And do…
Part Number: UCC28061 Other Parts Discussed in Thread: UCC28063 , UCC28064A , UCC28065 Tool/software: Hi,
We are designing a Audio system for 4 amplifiers requiring 600W power.
I am using UCC28061 for PFC and boosting the Input AC supply (110Vac to 260Vac…
Part Number: UCC28061 Other Parts Discussed in Thread: UCC28063 Tool/software: I am using UCC28061 in my design i want to understand the EMI filter design that would be required for the best performance of the IC and EMI profile.
Can i also get suggestions…
Part Number: UCC28061 Dear TI Team,
We've encountered an issue with our design that employs the UCC28061 with two power MOSFETs, which are experiencing occasional failures.
Originally, we utilized the STP25NM60ND MOSFETs for this purpose. However…
Hello,
You are correct that adding a gate drive resistor will increase the losses of the FET. This will be due to having less current to charge and discharge the gate capacitance of the FET. This will result in increased switching losses. However, the…
Part Number: UCC28061 Hello Team,
Could you kindly help me see if the below waveforms are a common issue for PFC Controller?
Here are the issues my customer is facing:
When the output is no-load, the two gate outputs work in phase (It should be 180…
Part Number: UCC28061 Hello,
WE would like to use UCC28061 in our mainstream products as this is only controller currently available on the market .
But we found a problem. During start-up with low line voltage (90Vrms) even at very low load (5W) , the…
