Part Number: UCC28703 Tool/software: Hello TI Experts,
I am currently working on a power supply design using the UCC28703 flyback controller , with the goal of achieving a regulated 24 VDC / 3 A output from a 220 VAC input .
For the magnetic component…
Part Number: UCC28703 Hello,
I am after a 20mA constant current PWM regulator for an audio class G/H power stage, see the attached schematic to replace linear transistor Q1 & Q2.
Must work from 2 Volts to 300 Volts.
What part do I need?
4000W…
Other Parts Discussed in Thread: UCC28704 , UCC28703 , UCC28740 Hi
Are there other benefits to the UCC28704 vs. UCC28703?
We know that the UCC28704 has improved load transient regulation but a lower switching frequency.
thank you
kamal
Why there is this discussion?
There are so many questions in the forum related to the startup of UCC2870X or other TI PSR controllers/switchers. We know the anxiety when customer met startup issues. So we develop to try to aim customer on their issues…
Hi IgorR
Thank you for reaching out.
The IC is most likely restarting because it has encountered a fault.
Please refer the following debug guides which might be helpful with the debug process.
https://e2e.ti.com/support/power-management-group…
Other Parts Discussed in Thread: UCC28703 , UCC28730 Hi
We have a power supply to fail to pass the thermal test. This power supply is based on the PMP4450 (UCC28703) reference design from TI (it is built with exactly components with PMP4450). During…
Other Parts Discussed in Thread: UCC28700 ucc28700_datasheet.pdf page 10
8.3.1.3
The VS pin also senses the bulk capacitor voltage to provide for AC-input run and stop thresholds, and to compensate the current-sense threshold across the AC-input range…
