Hi Armela,
The negative zener clamp method you cited from section 7.3.1.3 is illustrated in this reference design schematic: http://www.ti.com/lit/df/slurax2/slurax2.pdf which was done for a project using the UCC28720 PSR BJT-controller, however the…
Hi User5327551,
The UCC28720 controller is possible, since it does not have the dither function, however it works with primary-side regulation (PSR) which uses the reflected output voltage on the auxiliary winding to regulate. So it will not have as…
Hello,
I reviewed the LM5023 data sheet and the design is limited to 130 kHz maximum. However, this should not occur at full load.
I reviewed your files and your input range is 54 to 400V. This is roughly 7.4 to 1 where the data sheet example is…
HPB,
UCC28722 or UCC28720 can support 3.3V but it is not typical application so we chose not to support that yet in Webench. I would suggest using the mathcad or excel design tool on the UCC28722 product page to help design your supply and not the webench…
Hello Gokhan,
The UCC28710 is similar to the UCC28720/2 and should work in a high side buck application.
The 50 V to 150 V DC is a 3 to 1 input range will work as well. If the input range was over 5 to 1 it could cause issues.
I did notice that…
TI offers many controllers for constant-current constant-voltage flybacks. The UCC28700/1/2/3 controllers have primary-side regulation (saving money by not requiring an optocoupler). Then you could look at the UCC28710/1 controllers that also offer primary…
Nagarajan.
You could use one of TI's Primary-Side-Regulated (PSR) controllers. These use the primary-referenced aux winding (needed in any event for bias power for the PWM controller, referenced to GND1) to sense both Vout and Vin of the Flyback converter…
The UCC2872x family are designed to a drive bipolar Flyback switch, so the resulting design will be low cost. However, the power level of 18 W is probably too high to get good efficiency with the bipolar device.
The UCC2871x family are designed to…
Other Parts Discussed in Thread: UCC28710 , UCC28910 Hello, Could you please let me know the competitive device for ICE2QA03G(infineon) ? Our customer requirement is as below. ICE2QA03G http://www.infineon.com/dgdl/Infineon-ICE2QS03G-DS-v02_03-en.pdf…
