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Part Number: LM5164 Tool/software: Hi, I
designed a DC/DC converter using Webench with a 14-100V input and 12V/1A output.
There’s an audible hissing sound (‘tssss’), especially under light load. The circuit works correctly, but I’d like to identify…
Part Number: LM5164-Q1 Tool/software: hi expert
do we have any report about 5164 losing GND during normal operation?
what is 5164 output state if losing GND?
thanks
Hello Maor,
Thanks for taking this scope shot.
it looks like the boot to switch voltage is being charged up due to boot refresh. This is required to keep the boot to switch voltage elevated and avoided BOOT UVLO being engaged.
You can check the boot…
Part Number: LM5164 Tool/software: Hi Team,
As subject , do we have the EN/UVLO pin's power consumption or current consumption spec of this part for reference?
Hi Roman,
Have you tried the above suggestion? Is the issue resolved? If not resolved, let me add few other comments on the schematic.
You can reduce the fsw by increasing Ron and check if it is working.
Coupling capacitor Cb is very high, 1nF. Kindly…
Part Number: LM5164-Q1 Other Parts Discussed in Thread: LV2862 , LM5164 Tool/software: Hi there TI community!
I am designing a circuit using some TI devices, one is the LM5164 and the other is the LV2862 device. In the datasheeet of both devices there…
Part Number: LM5164 Tool/software: The datasheet was updated in 2024 and Ton2 was changed from 650ns to 1650ns.
Was this an error in the original datasheet that was corrected, or did a change in process actually change the electrical characteristics…
