Part Number: LM25085-Q1 Hi, I have a question about the switching frequency of LM25085-Q1,
LM25085-Q encounters the phenomenon that the frequency cannot be adjusted by changing Rt during use. The maximum input range is 11-16V, and the output range is…
Part Number: LM25085
HEllo,
I'm designing a dynamic Li-ion charger. The user will set the precharging current, the cuttoff voltage, the CC current, the CV threshold and the CV voltage depending on the bateery specs.
for that reason, i have added…
Part Number: LM25085-Q1 Dear ,
i use LM25085-Q1 to build one DC-DC , 15V,18-25V input, and when output current larger than one current( 2A for example), the drv will keep low for hundred us, and FB pin thus abnormal cause of the ripple injected.
drv…
Hi Fleming,
My apologize for the delay.
If you only need CC, the circuit in application note is not suitable for you. You can use LM25085 with current sense resistant and delete Rfb1 and Rfb2. I mentioned LM40200 just because we can learn how we achieve…
Part Number: LM25085
Hi, we make a buck controller topology in which USB PD input. This means input voltages are 5V, 9V, 15V, and 20V. The maximum current is 5A. We want, if the input voltage is 5V, İnput voltage will directly pass to the output. In…
Part Number: LM25085 Hello TI team!
Here are the application details:
Vin= 12.0 - 14.4V
Vout= 12.4V
Load= 5A
Fsw= 300kHz
4 layer PCB (Signal 1, GND, PWR, Signal 2)
We have noticed that when our LM25085 regulator is switching, the digital…
Part Number: LM25085 Hello Team,
Can you have a look at the following customer inquiry? Please let me know if you need the schematic and I will send it to you offline.
Circuit is oscillating at audible frequency. The circuit is connected to 6 times…
Part Number: LM25085
Hello,
I used WEBENCH to design a regulator (VinMin = 4.5V VinMax = 16.0V Vout = 4.3V Iout = 5.5A), the main regulator is a LM25085 ( I use also a second LDO to generate a 2.5V for other purpose) , circuit is attached and also…
Part Number: LM25085 Hello,
I'm design a regulator for an application where the load can draw up to 7A for some seconds (it's a big capacitor).
I want to limit the current to 5A to avoid high temperature on the load.
My question is if I set the…
Part Number: LM25085 Hello TI team :)
Here are my application details:
Vin= 13.8V
Vout= 12.4V
Load= 5A
Inductor= 4.7uH
RT= 249kOhm
Rsns= 10mOhm
Radj= 2kOhm
PFET delay delta= 12ns
I wanted to check for current runaway using equation…
