Part Number: UCC2803-EP Tool/software: Hello,
1. As per datasheet , overcurrent threshold is 1.55V (typical) , does this mean VCS is 1.55V?
But under maximum input signal its says 1.1V. How does this relate? Also, the gain. Will the fed CS input…
Part Number: UCC2803-EP Tool/software: Hello,
I am currently using https://www.ti.com/lit/ta/ssztcw6/ssztcw6.pdf?ts=1748275378787 for simulation in LTSpice.
But it is throwing above error.
Could you please help fix this.
Thank you!
Part Number: UCC2803-EP Tool/software: Hello,
I am using https://www.ti.com/lit/ta/ssztcw6/ssztcw6.pdf?ts=1748236434935&ref_url=https%253A%252F%252Fwww.google.com%252F for flyback converter design.
Could you please let know what does n stand for…
Part Number: UCC2803-EP Other Parts Discussed in Thread: UCC2803 , , UCC2802 Tool/software: Hello,
We are using UCC2803 Flyback controller IC.
Regarding start up circuit , could you please help me a different approach apart from using resistor…
Hi,
What converter topology are you using with UCC2803-EP? The link you show is for flyback. To what I know UCC2803-EP is not for a flyback so the link you show is not applicable to UCC2803-EP.
Part Number: UCC2803-EP Other Parts Discussed in Thread: UCC2803 Tool/software: Hello
As per below webench start up circuit suggestion,
Input voltage ranges from 180-370V, if i consider 180V as input voltage then the current consumed by UCC2803 during…
Part Number: UCC2803-EP Other Parts Discussed in Thread: UCC2803 Tool/software: In my case, i have Vaux as 9 to 9.5V. How to calculate Raux since internal zener diode will never be operational as our Vinput is 9V.
Through Webench it says 10ohm.
Part Number: UCC2803-EP Other Parts Discussed in Thread: UCC2803 Tool/software: Hello,
With the requirement of 180 to 380V Input voltage , Load of 0.5A and Vout of 15V. Below circuit is built using UCC2803.
Compensation and current sense is designed…
Hi Jasbeer,
You would need to consult with the safety agency as to what protection that needs to be added in your adapter to be qualified to meet 2KV voltage surge rating on the adapter.
UCC2803-EP is controller with its specs highlighted in the…
Hi Adam,
UC1843A HBM israted ±2000V, which means the HBM ESD Device Classification device level is 2.
Regarding models, you could try the UCC2803 models, which have the same functionality as UC1843A - https://www.ti.com/product/UCC2803-EP#design-development…
