Brian,
J6 has the programming interface. It uses spi-bi-wire, which you can learn more about here: http://www.ti.com/lit/an/slaa754/slaa754.pdf
You would not be able to use the tabs directly to the copper as it would create a short as the tabs are…
Hi Shubiao, Yes but there is more to it. There is also the different input voltage conditions, output voltage conditions, load conditions, OTG, etc. You need the correct IADPT resistance to work. Typically, in power converter, magnetics (inductor) is…
Hello Qingfeng,
You should consider using the UCC28220 dual interleaved PWM controller. This can be used in a dual buck topology and is available in a 16 pin TSSOP or SOIC package.
Your total output power is 675W and so each of the buck stages needs…
Hi Rajeev,
Take a look at PMP20196 as a starting point. It is 9-150Vin and 5V/4A output. You can try to take the output up to 12V/2A max by reducing R13. The duty cycle will increase to the low 80% range, which is okay because the LM5022 can handle…
PY,
Unfortunately to change this design to 600V input would require significant changes. This includes the transformer, power MOSFET and clamp circuit. PMP7958 and PMP5067 can be referenced, though they are for higher power. You can also use TI's Power…
Hello Masazumi Ishii,
The Application Report SLUA535 details a complete design of an active clamp forward topology based on the UCC2897A controller.
You can also use the Power Stage Designer tool to quickly design the transformer and output inductor…
Hello,
This design was not originally done for an automotive environment. However, with proper component choices/ratings and switching to pin-2-pin UCC28951-Q1, it can be modified for an automotive environment.
Design tools for the UCC28950 are located…
Swaminath
We recommend that you use webench http://www.ti.com/design-resources/design-tools-simulation/webench-power-designer.html to help determine which TI device works best for your specification.
Note that TI has two different type of controllers…
Hi
Isolated options:
For case 1 you may be able to use a flyback, at 120W this is close to the limit of the flyback topology and the secondary side RMS currents will be quite high. An alternative is the forward topology which is a better option at…
Hello Harini
The Excel calculator assumes that you are using Current Mode control. You are using Voltage mode control and the loop compensation for VMC is very different to that for CMC. The details are in the document at http://www.ti.com/lit/slup340…
