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LTC4011 top-off charge time isn't constant.
Hi Regarding LTC4011, when RTIMER is equal to 100kohm, the tmax=100k*30^(-6)=3h which is the fast charge time and the top-off charge time is tmax/3=1h.But top-off charge time of NiMH battery (4cells)...
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LTC1569-7 Non-aliasing phenomenon的非混叠现象
LTC1569-7 shows half of the amplitude of the input signal at 8 times the cutoff frequency. What is the reason?LTC1569-7在截止频率的8倍处出现了输入信号幅值一半的现象，请问是什么原因？
View ArticleNiMH - LTC4015 battery charger
I would like to use LTC4015 battery charger to charge a Nickel–metal hydride battery.1) is this IC can support charging NiMH chemistry.2) NiMH batteries nominally operate at 1.2 V per cell, do I need...
View ArticleAre there any reference designs or design examples for a redundant PoE...
There are many examples for a PoE power supply with the possibility to have a separate external power source ("wall wart") connected as a backup power supply for the PD. I need a solution for a PD that...
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100 W LED Driver [ LT3791 ] - not working
Hello,I am trying to power up 100 W LED using LT3791 Buck / Boost LED Driver, but it seems like there is something wrong with it. Let me explain what I have done:- I have designed the schematic, shown...
View ArticleLTC6804: Drive external mosfets
Hi,I want to use the LTC6804 to drive external mosfets. so i want to know how much the LTC6804 can deliever voltage to drive mosfet ?As most mosfets need 10 V can he deliever such a voltage ?
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Questions about ADP5091-1
Hello，everyone whom Q01: in the case of PV, if I want to get a continuous current output of 125mA, use 5091-1, should I use SYS or REG_OUT?Q02: in the boost mode, why does the output voltage of REG_OUT...
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LT3042-Split Cap/Kelvin - Connections
Hello, I am using the LT3042 for an ultra-clean 5V supply. In working to get the best performance I have followed the Appnote for the Demo Board, DC2246B regarding the Split Cap design. My question...
View ArticleQuestion about ADP2442 Start Up Fail
Hi All, What do you think the cause of the attached start up fail? The 5V output is normal but the 3.3V channel stops to work during its start up. I also tried to start up with 0.1uF boost cap but the...
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Requirement For Battery Charger IC
Dear Sir We are Requiring Battery Charger IC for lead acid battery , Vin -Max 28 to 30 Volts, Battery Charging Voltage-28 Volts, Battery Charging Current-2 to 3 Ampere.We require these IC...
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Intel VR13/IMVP8 Power Solution
Dear All:ADI have Intel VR13/IMVP8 power solution? I need 7-phase output power is VCore-0.4V/80A ,check ADI only VRM9/VRM10 3-phase-LTC3738 this spec to low ,is there ADI have new product architecture...
View ArticleLTM4676A output voltage setting
Hello Analog experts,I used LTM4620A in my last design but now I want to use LTM4676A because it has wider input voltage range. Output voltage of LTM4676A can be set either with PMBUS or by PIN...
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Suggest a PMIC for my application.
Hi. I am looking for a management IC which has pushbutton control, USB powerpath, Li-ion charger, in-built LDO and load current capacity upto 1A pulse spikes. The load might contain an OLED display,...
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LTC3779 buck inductance
Dear Specialist, LT3779 spec page 24 describes the buck inductance follows,and the example shows on page 34 is as below, if calculate with below figures, the inductance should be 1500uh rather...
View ArticleLTC4367 device failure
Hi,I am using LTC4267 IC as a over voltage protection device. I have set the over voltage to 36v and the device is working fine. I have given a load of 1A. I have given 28v supply and 100V supply using...
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Which wireless charger IC is good for charging LIR1220 batteries?
Can LTC4123 output voltage increase to 4.2v?
View ArticleLT3420 as HV power supply.
I need a HV (250-300V) power supply to bias an avalanche photo-diode (current ~1 mA max). The spec sheet of the LT3420 says it can be used as a supply but there are no details. Is it possible to have...
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LTC4366-2 High Voltage Surge Stopper
Hello, I wanted to us LTC4366-2 in my design. In the datasheet, there is an example circuit which can carry 1.5A current. In my application, I need to draw in between 20A to 60A current. By...
View Articlequikeval module LTC3300-1 DC2064A
We are trying to use the DC2064A Evaluation Board with a DC590B Board. We were able to install the software but when connecting the DC2064A Evaluation Board we get the following error message: see...
View Articlehigh side driver LTC7001
Do you have any experience for buck converter with high side driver LTC
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