I'd like to know about R19/20 value of DC2190A-A.
Would you tell me the reason these value are 100ohm?
Because I couldn't find any description about this in the datasheet.
Can two or more LTC3892 work in lnterleaved mode?
For example, two LTC3892 are given two external clock signal with 90-degree difference. And all four VFB are connected together; all four ITH are connected together; all four TRACK are…
As stated on page 16 of datasheet, there should be foldback current for short-circuit protection. You are building a 500W converter which is not easy to do. I assume you started by doing your own board. We usually recommend to start with…
I am using the LTC3892 for dual 9A 36V outputs. I have noticed that using one channel/side of the LTC3892 everything works but as soon as I turn on the other side the voltages start turning on and off and the the LT3892 gets hot.
I am powering the chip…
I am finding that the LTC3892 appears to be having the high side gate drivers getting killed. I looked through the datasheet and it does not indicate the drive current that the high side gate drive can source.
What is the maximum and continuous gate drive…
I am trying to use the LTC3892 for a 36V to 29V @ 10A buck application. In this configuration would I need to use an external VCC for the LTC3892?
Specifically I have noticed I am starting to brown out the output at around 3-4A @ 30V, then the chip gets…
I used LTC3892-1 as a 20A output 32V -> 12V DCDC converter. I have the DRVSET set to 50k, so the DRVcc is 5V. The circuit was also simulated in LTSpice and seemed to be correct.
The configuration is:
DRVUV = 49.9K (5V)
FREQ = 54.9k (350kHz)
Making LTC3892 as an example, the chip using peak current control. How should the compensation of voltage loop be designed? Specifically, how should the resistance and capacitance of ITH pins be designed?
Does this part can do parallel function?
Like the way LTC3892 do 12V/60A function on demo board?
By the way, why this part output current ability is only 12A?
Thanks a lot.
Thank you Seth for the response.
I am referring to LTC3871 , missed mentioning it in my post . I would like to know about 12 Phase supported by LTC3871 . I am planning to use LTC3871 in buck mode for 48V to 12V conversion . I need to support 200A current…