Reconfigurable battery stack AD8280 design.
Is there a way to design a reconfigurable (i.e. via microcontroller FW and some analog switches) AD8280 design in order to implement one board for 3 to 6 cells connected in series? The number of...
View ArticleSchematic for EVAL-ADP2389?
Is there a schematic available for EVAL-ADP2389?Thank you.-Dan
View ArticleDimming function of ADD5203
Dear Sir/Madam, Our customer is studying with your ADD5203 in exchange for ADD5211 past you recommended. Q-1As for your "DC current dimming" function of page-12 on you datasheet,Does this means...
View ArticleADD5211 design questions
Hey all I'm not happy with a current backlight solution I use on a custom board, it tends to blow up the driver IC for yet unknown reasons.So I looked around for other LED drivers and found the...
View ArticleADP1047 using for DC/DC
Hello, could the ADP1047 be used for DC/DC design? I want to design a SEPIC controller like this one: http://www.analog.com/static/imported-files/application_notes/AN-1126.pdf The requirements are as...
View ArticleLinear regulator models?
I also posted this question here: Where are the linear regulators in ADIsimPE? I am interested in simulating some linear regulators including the ADM7154, ADM7150, ADP7182, and ADP1740/1741. So off I...
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ADP1614 LOOP COMPENSATION
Hi, There is a question about loop compensation of ADP1614.Lower mentioning is in the data seat. ADP1614 DS------------------------------------------------------------------------------For most...
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Simulation using AD8336, AD736 and AD8551 spice models in Pspice
I have this circuit to be simulated in Pspice. I'm a complete newbie to it. But so far have managed to make the schematic (adding external components, which were not available already in the...
View ArticleADP5050 External MOSFET
Hi All, I am looking at the ADP5050 5 channel buck converter, and I have a question regarding the external MOSFET.Going thrugh the datasheet, I find it the need for an extarnal MOSFET unclear. The...
View ArticleLDO enable level and leakage current
Does an LDO (ADP150 or ADP160) consume any significant additional quiescent/leakage current due to the enable pin that is driven high at a voltage level lower than VIN? Example: VIN=4V; EN=3V
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 ArticleIn trouble simulating IN-AMP
Hi there,I'm in trouble to simulate IN-AMP, AD623.I'd like to check transient analysis, but for some reason the output of AD623 does not work....There is the error message,"Device AD623 found in...
View ArticleADP225 UVLO Spec
Hello, I am using the ADP225ACPZ-R7 regulator, and I have noticed something strange with the feature "UVLO - falling edge": It says on the datasheet that the minimum voltage for shutdown is 2.2V, and...
View ArticleSome configuration questions-Connecting ADP5090 to Piezo Harvester
Hi everybody, im working currently on a project and have some configuration problems with it. There are some piezoelectrical harvesters connected through rectifier to the capacitor Cin. The energy...
View ArticleHow to add part to the library folder of ADIsimPE simulator?
I just started using ADIsimPE.I want to add AD8335 Pspice model of this part.I found the Pspice mode with .cir in the website. How to add this to the components library of the simulator?
View ArticleADR444 Incorrect Output Voltage
I am trying to use the ADR444 as a 4.096V reference for the ADAS3023, using the AD8031 as a buffer, as suggested on the ADAS3023 data sheet. The ADR444 is giving about 4.3V, which is dropping to 4.2V...
View ArticleSync ADP5054 switching frequency to clock ranging from 500 KHz to 880 KHz?
Regarding the ADP5054. We have to be able to Sync to an external clock with a range of 500kHz to 880kHz. Per page 16 of the datasheet. “Note that the internal switching frequency set by the RT pin must...
View ArticleHow to use SMBus Jump in ADM106x product
I would like to use I2C command to change ADM106x behavior after board is powered up. So far looks like SMBus Jump may be command I can use. But I cannot found any documentation on how to issue this...
View ArticleCN0337 in ADIsimPE
I have created the CN0337 reference design for 3 wire RTDs in ADIsimPE and woiuld like to see VOUT and data from a current probe I placed in the circuit. But I am not sure what type of analysis to run....
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ADP7104 5V out Power Good Pin to 3.3V logic
Our ADP7104ARDZ-5.0 (+12 In +5 Out) is interfaced to a common "power rail good" bus. All other devices on this bus are pulled up to +3.3V, however this device specifies pulling up the PG pin to either...
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