Hi,
Because fly-buck is a primary feedback topology, the output voltage will be changed by you diode and path resistor. So please change D1 to another diode with lower forward conduction voltage drop. You can also use the excel tool to calculate component…
Hi,
This looks like some kind of instability. Do you use the same value as webench recommend on R50 and C37?
You can also check the ripple injection circuit value here
http://www.ti.com/tool/lm5160dntfbk-calc
You can maybe try to lower the R50…
Hi,
This looks like some kind of instability. Do you use the same value as webench recommend on R50 and C37?
You can also check the ripple injection circuit value here
http://www.ti.com/tool/lm5160dntfbk-calc
You can maybe try to lower the R50…
Part Number: LM5161-Q1 Other Parts Discussed in Thread: LM5160DNTFBK-CALC Hi TI,
I have an application which will use LM5161-Q1 in a fly-buck configuration. I'm testing a few custom transformers and have the design working but I'm not sure if the temperature…
Hello Robert,
The LM5160A can meet your needs.
www.ti.com/.../LM5160A
When used in FLYBUCK mode it produces an isolated output.
In the product folder there is a calculator tool.
www.ti.com/.../lm5160dntfbk-calc
LM5160 Fly-Buck Regulator Quick…
Vipin,
As David mentioned above, the PMP9282 design would need to be redesigned using a more appropriate smaller power stage for the lower output power. But it was the closest existing TI reference design for your requirement. The 8-V minimum input…
Thanks
I checked many reference designs for LM5160 before.
for my application I have mentioned some parameters such as (LM5160's datasheet, page 18, 8.2.1.2.3 Inductor Selection):
for Fsw=260 KHz, Lmin=83uH
for Fsw=500 KHz, Lmin=42uH
IL1 = 1…
Part Number: LM5168FEVM Other Parts Discussed in Thread: LM5168 Tool/software:
I noticed that there are a lot of high voltage DC/DC off-shelf modules. if I want to design a high voltage module, input 12 or 24V, output 1500V DC, 5mA or better 7mA.
…
