Part Number: PMP10834 Other Parts Discussed in Thread: PMP10833 , PMP20122 Hi,
I'm thinking about using the same circuit as the one presented in your board PMP10834 for my design that needs an AC/DC with 5V output (max 0.5A).
To save space and costs…
Anand,
Updated link below:
https://txn.box.com/shared/static/pdfn4e14n8ibg0u95lrpwwlgvhik1727.pdf
You will have issue to use UCC2871x in buck mode based on PMP9087 structure as 5V output is lower than UCC2871x VDD UVLO point. The controller won't even…
Part Number: UCC28C45 Other Parts Discussed in Thread: PMP10834 Dear TI EE:
I want to use UCC28C45D for Fly-Buck Converter.
I want to take'TI PMP10834.1 SCH' as reference.
The SCH from PMP10834.1 as below picture.
…
Hi Pan,
Yes, you can use UCC28C42D for a HV buck. Another example is PMP10834:
www.ti.com/.../pmp10834.
Also, to reduce switching losses, we generally design the converter to be operated at DCM. Therefore, the duty cycle at maximum input will be less…
Hey Bob,
We do have products that can meet your non-isolated converter needs.
The UCC28700 is a primary side regulator that can be used as a non-isolated buck converter as shown in this reference design: http://www.ti.com/tool/PMP10937
If cost is a concern…
To clarify Masumi, the UCC28911 can give more output power in non-isolated flyback configuration than the UCC28881 can deliver as a non-isolated buck.
In non-isolated buck mode, the UCC28911 delivers less power than it does in flyback mode, and if your…
Check out the following reference design. It is cited as a fly-buck, but it's really a buck with an extra winding to bias the controller, which is pretty much what you will need.
www.ti.com/.../PMP10834
You don't need the optocoupler circuitry shown…
