Part Number: TPS56339 Tool/software: Hi expert!
I'm the FAE Cicely of south China, I have a question about the TPS56339EVM.
IN the Buck converter, why the SW voltage is negative 300mV when the Low-Mosfet is on .
Thanks very much!
Part Number: LM26420 Hi,
I am working on board in which we have used LM26420 for 3.3V and 1.8V output with 5V input, the circuit is shown below
I am getting no output from 3.3V and therefore the 1.8V is also not working.
Also, if I measure with oscilloscope…
Hello Yash
If there is no HO switching when the output of the buck converter is pre-biased, it might be caused because V(HB-SW) is not enough high to enable the high-side driver.
Please monitor V(HB-SW) using a differential probe and check if V(HB-SW…
Part Number: SW-EK-TM4C1294XL Good morning TI,
I'm having trouble using Tiva's ADCs (TM4C12294XL), my project needs to read 8 channels simultaneously every 500Hz, but in this code below I can read the channels of the ADCs: 0,1,2 and 3 of Correctly, but…
Part Number: TPS65000-Q1 Other Parts Discussed in Thread: TPS65000 Tool/software:
Why does the DC-DC converter integrated in the TPS65000 experience a brief output interruption when switching from PFM mode to PWM mode?
At this time, the shutdown time…
Hello Ragul
Input current limit of 50 mA might not be sufficient even if converter is operating at no load. Converter will take significant amount of current to charge output capacitance during startup. If current limit is lower than the inrush current…
Part Number: LM5145 Other Parts Discussed in Thread: TEST2 , LM70860
Tool/software:
Greetings, professionals and forum visitors. I would like to ask your help with LM5145 converter. In my project, converter being powered by 48V Li-Ion battery (input voltage…
Hello Chu
It looks like the converter was operating at the boundary condition between CCM and DCM.
In DCM, the inductor current resonates with the parasitic capacitance of the power MOSFET/ power diode, which can cause a voltage swing at the SW node. …
