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Forum Post: RE: LM5071
Thanks Eric, your suggestion seems to be correct. Refer to attached measurement, channel 1 is the ripple (AC coupled) and channel 2 the COMP voltage.Could you point me in the right direction how to...
View ArticleForum Post: RE: TLC5927 error detection problem
Dick, I have checked this morning... I can see on SDO wire the SDI delayed by 16 cycles. Note that I can read something on the first SDO burst. Sound strange because nothing was send on the SDI wire...
View ArticleForum Post: RE: could we short output of 2 LDO's to get the more current...
thanks for reply we wants to short the two LDO'S directly as it seems and no harm and in our pcb there is option of shorting only. our load is normally less than 100mA but sometimes it goes upto...
View ArticleForum Post: RE: LM22676
Hi Tommy. Thanks for the answer. If I understand you correctly, WEBENCH disregards the possibility of a short circuit?Yuriy
View ArticleForum Post: RE: Problem with TPS3307-18: the chip keep in reset DSP with the...
Hi Darwin,In the MR voltage is present a pull up resistor of 470ohm to 3.3V with a filter capacitor of 100nF to ground.The reset pin: reset (pin6) is not connected, /reset (pin5) go directly in dsp...
View ArticleForum Post: RE: BQ20z75, CHG and PCHG FET are off
Hi Onyx,the files are .senc files from BQEASY.. please rename them with a .senc extention. I used the txt extention because a had troubles to upload the files using the internet browser uploader from...
View ArticleForum Post: RE: unable to complete learning cycle bq34z100 with primary battery
PerryA ChemID mismatch will have a major impact on gauging and the ability to complete the learning cycle. We are characterizing a CR123A cell to create a new ChemID and it should be ready soon....
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Forum Post: RE: How to using BQ24650 for Solar panel 60V?
Thank you for your reply.Follow the BQ24650 datasheet, it only operate with range 0-28V. But the voltage from solar is 60V.What do you think about my solution as follow:- I will use a DC-DC converter...
View ArticleForum Post: bq20z45-R1 AFE_P bit is set by ESD test
My customer is doing ESD test.Then they observed that AFE_P bit in PFStatus register is set.Have you ever observed this phenomenon?And What is the cause that AFE_P bit is set?This phenomenon is avoided...
View ArticleForum Post: RE: LP55281 - using the Demo SW to make the RGB LED vary with music
Hi,Unfortunately with LP55281 the audio synchronization works only for the LED mounted on the D3 (the audio synch LED).If you are looking to control more LEDs with audio synch you might look at...
View ArticleForum Post: Buck converter for input voltage 6 to 16V with a limitation
HalloI am looking for a DC/DC Converter with following features.-Input voltage 6 to 16V with maximum rating over 30V.-Output voltage 12V for input over 12V and pass through the voltage to output for...
View ArticleForum Post: DC to DC conversion
Hello Everyone,In my design, I've applied 24~36V AC input from Transformer secondary. From this input I need two Isolated O/P; 1. 24V DC (2A)2. 12V DC, 500mA (Isolated). I've taken 24V DC from Bridge...
View ArticleForum Post: RE: LM5071
Attached a PDF of the schematic:(Please visit the site to view this file)
View ArticleForum Post: RE: Bypass bq25504 under 1.8V
Hi Yogesh,Thank you very much for your support.I'll be waiting for your application note with great interest.Best regards,Gilen
View ArticleForum Post: RE: UC2906 charger issue
Hi there,I have a question regarding the UC2906 chip. right now, I have the circuit laid out in a way that as soon as the state level output of the chip goes high, the device would enter the discharge...
View ArticleForum Post: Question about power-up timing control with TPS65217C
Hello TIerI'm going to ask about adjusting power-up timing with TPS65217C.In my design, power on with detecting edge of PB_IN pin. Is there any option for changing power up timing?If so, please share...
View ArticleForum Post: Buzzer for bq500211a
Hi,May I know what is the maximum current of BUZ_AC and BUZ_DC can be supplied to drive the buzzer ?I face problem with my board that the BUZ_AC pin keep on generating the pulse signal with amplitude...
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Forum Post: [Current limitation] LM2676-ADJ
Hello,I want to fix a +12V potential in the output with a +24V input.My problem: When the output current is higher than 600mA (with a charge of 20R), the voltage falls progressively. All the capacitors...
View ArticleForum Post: RE: Problem with output capacitors of the DC/DC converter with...
1) What could be the reason for the explosion of the capacitor?Identifying the cause of the failure may require some additional information. The most common cause of failure in Tantalum capacitors is...
View ArticleForum Post: RE: Smallest coil for bq5105X?
Hi,we have just ordered the coil at http://www.micro-electronic.shop2go.biz/produkte/But I have questions about the resonance capacitors C1+C2. Is there any reference design?Mingstar gives only Ls not...
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