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Hello,
How can I find out what nm or um technology an IC's Die has been made with? the IC can be anything any fpga, microcontroler, eeprom or....
I'm having trouble finding out this info on datasheets.
Thanks,
Ferbo
No I cannot find the source of the short even when I remove the zero resistor that connects the TG pin of IC to the mosfet, the short is still present on the IC side of net. but when I remove the IC it's not present anywhere. I think that's just present when there is no input. or else the...
Thank you for your help. The top Fet gates seem to be shorted to the switching pin of inductor in both channels however. The jumpers in open situation are designed to have the channels running. if conneced that channel would turn off.
Hello,
I have designed a dual buck with LTC3892.
40 to 50 v input
vout1: 19v 10 A
vout2: 12v 6 A
my EXTVcc is connected to the second output.
for FETS I am using: BSC0804LSATMA1
For L in 1st channel: PA4344.223NLT
For L in 2nd channel: SRP1770C-330M
I connect the input of 48 volts. I...
Hello,
We have a lithium ion pack with its own BMS made for us and we want to make the insulating and protective box for it.
I found the films such as kapton polymide films that conduct the heat but not electricity to wrap around the pack. and we can 3d print a box for it. But I don't know if...
Dear Barry ,
Yes I think so because I know for a fact that it was charging at a limited current of exactly 1A before and the input and output currents were normal as well.
1620804638
Dear Klaus in the file output you can see all the 6 layers separately.But I am also attaching all the layers in...
Hi everyone.
I have designed a battery charger using LTC4020 for 12cell lipo batteries. The input range is 40 to 50 volts and the output is set to Max 50.5 and min 40.9.
Max Chargin current is limited to 2.5 A using the sense resistor and later 1A using RNG resistor.
The assembled board...
I know this question might sound stupid... I want my 3 phase BLDC to hold its position even if I try to turn it with my hand. If I just fed the two phases with my dc voltage... i mean battery+ to one phase and battery- to the other... would it cause a short circuit due to the coils of the motor...
Thank you so much Brad, i didn't know that about chargers.
No I'm not trying to build a step-up just trying to charge a 12s battery using a commercial battery charger.
I have a 12s lipo battery and a D100V2 two channel charger. this charger has the ability to charge two 6s batteries at the same time. I am planning to not use the balance charging option since the battery pack has its own BMS and can balance on its own. I want to serie the channels on the...
Dear friends,
I unmounted all the related caps and checked them the problem was neither of them. then I moved on to the chips and finally unmounted my main processor IC which was the issue. its vDD and Vss were shorted internaly; which I'm guessing had happened because of an external metal...
Hi,
I have a Vesc module which is faulted. I have noticed that it's 3.3v and GND is shorted while testing with multi meter. other than the IC s the only components between the two nets are the capacitors.
My question is that is it possible that a capacitor is burnt and short circuited?
Thank...
Thank you all. The controller that you can see in my basic picture monitors the total input current and the charging current using sense resistors. I understand that it can control the total converter current using the switches dedicated to the DC/DC converter. But that is not my problem. My...
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