ADP3654 Datasheet discrepancies
Browsing the ADP3654 dual FET driver data sheet, I noticed some discrepancies. Thinking it was my interpretation, I then browsed the AnaDev site. Lo and behold, right at the bottom of the webpage is a...
View ArticleADP1048 shunt
Hello guys i'm started to play with eval. board 600W pfc interleaved with ADP1048. I have some questions about the dimensioning of R shunt to add in series of source mosfets and in series with pgnd....
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 ArticleADR441 - Additional Noise Data Requested
Good morning. I have a customer currently using the ADR421 as a voltage reference in multiple projects. The spec on this part indicates 1/F noise of 1.75uV and noise of 80nV/√Hz @1KHz. The noise...
View ArticleADP5050 uncleared issues (for me)
hello everyone, i would like to use ADP5050 at my power supply product and i have a few questions: 1. I need to use the 200 mA LDO as 5.4V input and 5V output (and 150mA) is it possible? how much...
View Articleadp5050&5052
Hello again, Thanks to your support and Meir Mardechayev from Phoenix Technologies we decided to use ADP5052 at our design... few more question: 1. what is the deference between ADP5050&5052 beside...
View ArticleADP5034 ADIsimPower Simulate File
Dear All:ADP5034 ADI will provide ADIsimPower excel file to user simulate use it? for example: BUCK1/BUCK2 inductor SPEC./Size Selection or BUCK1/BUCK2 conversion efficiency simulation and...
View ArticleADP2114/2116 output current
Hi,I amtrying toconsider DC-DC regulator to the powerofanalogcircuit with a highsensitivity. As a result ofreadingtheattached file, I want toconsider theADP2114/2116.1. Using single mode, it outputs...
View ArticleSelecting input power - external, usb or batteries
Hi, I'm modifying an existing design that has 3 different power inputs: Ext power - ~12VBatteries - 6 x AAUSB - 5V The design currently just diode 'OR's' the supplies together before the main switching...
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 ArticleHot-swap sulution with PMBus and integrated temperature sensor
Hello, My name is Meir and I am DFAE at Phoenix technologies in Israel. MRV, one of my castomers, is interested in hot-swap sulution with PMBus and integrated temperature sensor.I suggested them...
View ArticleADP198 Reverse Polarity Protection
Inquiry from customer wanting to better understand the ADP198 reverse polarity protection: The ADP198 is used with 3.3V at the input and would like to apply a 5V at the output and activate the reverse...
View ArticleBoost Circuit Design - ADP1621 suitable?
Good evening. I'm searching for an IC that is able to:provide an output of 6, 9 or 12V (adjustable) @ 1.5A at a maximum duty cycle of 100mS on/5sec off from a high current LIFePO4 cell (2.0 to...
View ArticlePower Up Sequencing using Enable Pin
HiFor our application we want to use yours ADP5024 and generate delay Between BUCK1 and BUCK2 Enable pin's.As mentioned in the data sheet those pins are active logic level high with Vih of min...
View ArticleADP5024: How to connect an unused Buck regulator
Hello, I was unable to find an answer to this in the datasheet... how should I connect the following ADP5024 pins if I do not want to use the second Buck regulator? VIN2, VOUT2, SW2, FB2, PGND2...
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...
View ArticleADN8831 for 16V/24A TEC?
Hi, I am looking for an TEC controller wich can drives 16V and 24A. I found ADN8831 and now I am asking myself, can I use this driver? Perhaps somebody can give me an advice. Best regards,Jürgen
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How about the duty cycle maximum parameter when I use ADP1047 for 650w PFC stage
I do a PFC stage for 650w which use ADP1047 switch freq = 60KChoke = 370uH When I checked the duty cycle during the VAC pin valley @Vin=230VWhy the duty close to 95% ? Is it right ? (see the attachment...
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ADP1047 current sense resistor question
Attached the pix as below . I had a question about 10Kohm !! Should it 10kohm ? I do some testing about this value , so far if the resistor smaller during THD testing will better .Do you have any...
View ArticleADP1047, PFC output voltage regulation
HiI'm working on a PFC input stage built around an ADP1047. The input is 230 volt 50 Hz, the output 385 volt DC and the maximum poweris supposed to reach 2100 Watt.It's working quite nicely up to a...
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