Using ADN-8831 TEC driver with a 0.8V/1.8A TEC
Hello, I am very interested in using this IC to control an APD TEC that has maximum TEC ratings of 0.8V/1.8A. Looking at the specs of ADN-8831, I am guessing it can be used and I am thinking of...
View ArticleLatch and Timer @ ADM2914-1
Hello, I have the following use case:- 4 voltages, 1 is negative.- LATCH is low (remember over voltage)- TIMER pin with 8.2nF => ~100msDuring startup the TIMER should not trigger /OV vor 100ms (the...
View ArticleADM1177 TIMER pin behavior
HiI would like to ask about ADM1177 hotswap device.Can I ask in engineerzone? I would like to know about VTIMER behavior in figure 32 and 33.Datasheet RevC P13 of 24 say"A hot swap fails if the load...
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ADP1047 THD parameter and gain/phase margin
Hi , SirBased on ADP1047 300 Watt Evaluation Kit , THD over 15% during light load condition . Does have anyway to reduce this THD ? We concern THD , It should lower than 15% as less as better . Does...
View ArticleADP3338-5 dropout voltage
Hi,ADI ExpertI use the low cost LDO adp3338-5 as the digital power regulator for my design.but now i am confused with the one of its features.I quoted the feature here-- 'Ultralow dropout voltage: 190...
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ADP2370 empty board order & 2370 buck designer problem
Hello people!Could please anybody let me know how can I ask for a couple of empty design boards for 2370? The idea is I tried to use the buck designer software, but every time I start it, the Excel...
View ArticleDo ADI offer a low noise push-pull driver?
I'm considering using one of the Linear Technology push-pull driver chips, e.g. LT1533, LT1683 or LT3439. At over $4 they are pretty pricey, so I'm looking for alternatives. Do ADI have anything...
View ArticleMosfet Drivers help needed!
Guys hi, it's my first time i write to the forum. I am student and i am now in the process of my Thesis diploma. I am designing a 3-phase inverter for a PMSM drive. I have chosen for my application...
View Article3V to 20V Boost for Low Current Application
I need to boost 3V to 20V (<1A) for use in a current source. I need a very small solution for my portable device. Most boost converters I find seem to not operate at at very low output currents....
View ArticleADP198, maximum of RDSon, VOUT time and VOFF time
Hi, We are now evaluating ADP198 LFCSP package for load switches.Could you please show us following specs which we could not success to find out in datasheet ? a) maximum value of RDSon, when 2.5V,...
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ADP2503/ADP2504 Efficiency Question
Dear All:I want to know ADP2503/ADP2504 If Vout fix =3.3V then Vin=2.8~5V,Iout=600mA/800mA and 1A ,this chip efficiency is how much? I check ADP2503/ADP2504 Datasheet Versin B Figure 11. your test...
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Sequencing> ADM1085 - ADM1088
Hello,,, I just hope i am not going against the rules of this site. i want to use ADM1087 in my project. I need a delay between pulses. this is a very simple scheme, but it does not work in...
View ArticleUsing ADN-8831 TEC driver with a 0.8V/1.8A TEC
Hello, I am very interested in using this IC to control an APD TEC that has maximum TEC ratings of 0.8V/1.8A. Looking at the specs of ADN-8831, I am guessing it can be used and I am thinking of...
View ArticleADP1047/ADP1048 current loop feedforward
Hello, I would like to use the ADP1047/ADP1048 with the current loop feedforward enabled (Fig. 32, Rev0 datasheet). The feedforward duty cycle term is shown as (-VAC/VREF) in the figure. Shouldn't...
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Voltage and current errors with ADM1191 @ -10 degC
I'm using 3 ADM1191 to monitor the voltages and currents on my power amplifier FETs (see below). I've set up the devices to read continously and poll the values. They work as expected, except at about...
View ArticleMore "modern" power connector?
Hello everybody! I have been develping an assisting device for the blind. The thing is, thanks to tiny AD ICs, I managed to make the power supply quite tiny, but now I have to think about a power...
View ArticleADM1177 TIMER pin behavior
HiI would like to ask about ADM1177 hotswap device.Can I ask in engineerzone? I would like to know about VTIMER behavior in figure 32 and 33.Datasheet RevC P13 of 24 say"A hot swap fails if the load...
View ArticleClik here to view.
ADP1047 THD parameter and gain/phase margin
Hi , SirBased on ADP1047 300 Watt Evaluation Kit , THD over 15% during light load condition . Does have anyway to reduce this THD ? We concern THD , It should lower than 15% as less as better . Does...
View ArticleADP1047 some questions
Hi , Got some questions , would you kindly help to reply me ? see the list as below . Thanks Current sensing ADC of current loop: Clear description, Gain? What’s the level shift current source?...
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