Question about ADP7159 LDO EN pin
Hello,in the ADP7159 ldo datasheet specifications,under the pull down resistance column,it is mentioned that when EN=0 and Vin=5.5v,Vout=1v.Does that mean that output of the ldo is 1v when it is...
View ArticleADUM3223 blanking high side for 200uS periodically
I am using the ADUM3223 with EPC2012C devices switching at 1MHz.When rising input voltage of the converter leg above around 13V, the high side driver blanks the output for 200us periodically ( period...
View ArticleJEITA of ADP5062
We deigned in the ADP5062 as our Li battery charging solution.The JEITA function is set to "OFF' by default, and it seems that the only way to enable JEITA is through I2C interface.If it's true, the...
View ArticleADP5063 LiFePo4 Higher Current Load Routing
Hi, I'm designing a system that can draw more than 4A from a LiFePo4 cell. I want to charge the cell using ADP5063. The datasheet states Continuous Drain Current as 2.1A. So I want to route discharge...
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ADP7159 - Operate around minimum Vin
I'm designing a power network that get 15v input and deliver 2A 1.8V output.I used ADP2384 switching regulator to convert 15v -> 2.3v and used ADP7159 LDO to bring it down to 1.8v. In order to...
View ArticleProblem regarding Mosfet Driver IC LTC7004
Dear Sir /Mam There is one issue regarding LTC Mosfet driver IC 7004. IC is working fine with input from SMPS of about 28 Volts 8 amps , But as soon as we connect Battery input...
View ArticleProblems with LTC1732
I have done a new design using the LTC1732-8.4 to charge a Li Ion battery at 1.5A. My Rsense is 0R07 and my Prog is 19K6. I get absoutely no joy from this circuit. It remains out of charge mode. I...
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LT8330 absolute maximum rating between EN/UVLO and VIN
Hello What is reason which EN/UVLO Pin Above VIN Pin is 6V?If between EN/UVLO and VIN apply above 6V then damage may occur on LT8330?Is this voltage protection diode breakdown voltage? Best RegardsT....
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ADP5063: Why LDO did not turn ON when VUSB is plugged in (No Fitted Battery)
I have off shelve ADP5063 (not factory customised), implemented the standard circuit to PCB with DIG_IO1 tied to HIGH (via 3V3 PSU) and DIG_IO2/3 tied to LOW via 600K internal pulls (which attached to...
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ADP2127: Recommended footprint for 6-Pad Embedded Wafer Level Package [EWLP]...
Hi, Is there any recommended footprint from Analog Devices which I could use to generate footprint (in PADS Layout) for ADP2127ACNZ1.260R7 (6-Pad Embedded Wafer Level Package [EWLP], CN-6-1 package)?...
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LT3761 internal pwm maximum frequency
What is the LT3761's interarnal pwm maximimum frequency? In other words what is the minimum value for the Cpwm? I used 1nF to achive around 10kHz, everthing looks fine but is there any long term...
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LTC4015 IC reset issue
Hi, We are using LTC4015 charger controller to charge Li-Ion Battery in our project, device is getting self-reset after we enable charger through i2c interface, we are setting Force_meas_sys_on...
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LT8650S using dual channel different output cyrrent
Hello Is it possible dual channel using below condition?Are there any problem? VIn range 5.8 to 39VVout1 3.3V 2.5AVout2 5V 5A In the datasheet"Both channels are designed for output currents up to...
View ArticleADUM3223 blanking high side for 200uS periodically
I am using the ADUM3223 with EPC2012C devices switching at 1MHz.When rising input voltage of the converter leg above around 13V, the high side driver blanks the output for 200us periodically ( period...
View ArticleWhy am I hearing a humming sound from my LED array?
Hi,I have been working on this consumer electronics project which uses LT3599 LED driver to control a 4 channel LED ring.Here, I have used True colour PWM led brightness control & the problem is...
View ArticleHow does the Balancing Self Test Circuit given in ltc6804 datasheet...
I am a student at VIT University, INDIA. I am making a college project using linear Technology IC.ltc8584ltc6804-1ltc8584 ic is for active cell balancing and it is compatible with the ltc680X...
View ArticleIf the part of LTC2171CUKG-12#PBF is oxidized
Hello, I want to know if the part of LTC2171CUKG-12#PBF is oxidized.Please check the attachment pictures.the pins color showed gold yellow and black.Looking forward to your response.Thank you
View ArticleEnergy Harvesting by piezo
I'm tryng to develop an energy harvesting circuit. The source is a multi stack system composed by multiple piezo diaphragms. Every stack has a no-load voltage and current of 110V and 70uA.I am not an...
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About LTC7000
Hello, I am using LTC7000 with IRFS4115 for high side switching (30VDC). Circuit is attached and it is more or less the same circuit as in the datasheet which works as expected in LTSpice. But on board...
View ArticleIs there a certain circuit board for a LTC4361 controller?
I am currently creating a product for my high school engineering class. I don’t know much about electronics or circuit boards. I was wondering if anyone has any recommendations for circuit boards that...
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