Part Number: LM5160DNTFBK-CALC I think "Maximum Recommended Value for Rr" is calculated so that injection level becomes 50mV.
I heard injection level should be 20mV to 50mV.
Injection level decreases as Rr value increases.
So I think this "Maximum…
Hello,
It would be better to visualize all of your design parameters with you populating them into the flybuck calculator for this IC.
The calculator performs the same calculations you have already done and comes up with component values. My hope is we…
Hi,
It looks the switching frequency is 800kHz, it's a bit high, please re-design component values with LM5160 calculation tool (see below link) and choose an inductor with lower leakage inductance, thanks.
https://www.ti.com/tool/LM5160DNTFBK-CA…
Hello Jamie,
Can you please complete the LM5160 Fly-Buck QuickStart Calculator tool, which can be found in the product folder. And can you please send your waveforms and schematics with component ratings.
https://www.ti.com/tool/LM5160DNTFBK-CALC
Best…
Hi Kai,
Pls download LM5160 Flybuck Calculator on TI website:
http://www.ti.com/tool/lm5160dntfbk-calc
LM5160 can support your application per the calculation result.
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 and see…
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 and see…
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 Start…
