Hello,
The LM5023 is a QR flyback controller that does not have power factor correction. At best I believe you can achieve a PF of 0.45 with this device. To achieve more than that you will reguire power factor correction.
The TPS92314 is a primary side…
Hello Ramya,
I believe I have answered this in the previous post:
ramya sri said: Also, please provide if any references or information "in what way we can evaluate these parameters if my audio codec is interfaced with FPGA" i.e, what are the equipment…
Hi, Ronald,
For the VCC capacitance, there is indeed limits because VCC capacitance will provide the internal circuit power at the startup before transformer auxiliary winding take over.
10uF is good start also verified in TPS92314EVM. Also we can reduce…
Hi Daniel,
I wish I could help more, but unfortunately, I am unable to locate the specific information on the transformer used in this app note.
My suggestion would be to follow their inductor design procedure (albeit rather abbreviated), along with the…
Hello,
The UCC28740 was designed for constant current/constantan constant voltage. It can be used for driving LEDs but not sure how well it will work with PWM dimming.
The UCC28740 is similar to the HV9961 using constant current control to drive LEDS…
Hi Sakthivishnu ,
The UCC28050 (or 51) are probably the best choices for your flyback PFC solution. A PF > 0.95 is certainly achievable, however, iTHD <5% is probably not; 10% is more reasonable.
If you are interested in a primary-side solution, TI…
Hello,
The UCC28740 does not have a PFC function. The TPS92314 does and it was designed for fly back controllers. The following link will get you to the data sheet.
If you have questions regarding how to use the TPS92314 please repost with TPS92314 in…
Hello Mohitha,
Thank you for your interest in the UCC28810 LED power controller.
The UCC28810 datasheet applications section is vague magnetics design, but an application note ( http://www.ti.com/lit/pdf/slua752 ) has some information. Even that is not…
Part Number: TPS92314A Other Parts Discussed in Thread: TPS92314
Hello
My customer intend to choose TPS92314 for next T8 tube project.
*Vin AC 85 ~265V
*Vout=70V ;VF＝2.4V x 28pcs => VF＝67.2V
*T8 size 280 mmx 18mmx 8mm ( therefore, PMP4347
seems to…
