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Forum Post: LMR62421 Boost
Hello,Please i`m using the LMR62421 to Boost a VCC of 5V. The circuit is OK to generate 5V, but when i try to shutdown i get a Vcc of 3.2V.Below is my basic circuit that i`m using:The currente is from...
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Forum Post: RE: Buck PSU - 10~32VIN with FSW = 600KHz (TPS54240 / TPS63020...
Hi Michael.Three questions:1) In equations 5 and 6 of TPS63020's datasheet, the "us" parameter is equal to 1/2.4? (It comes from typ. FSW = 2.4Mhz)? Equal to 0,4166666 ?2) Page 18 shows: A small...
View ArticleForum Post: RE: TPS62133 stops starting
Solved the overshoot problem "slowing down" the compensation loop response.However, I have no spare parts to replace TPS62133 and it is unavaible in the market until March, so I can't verify if the...
View ArticleForum Post: Using the bq76PL536A-Q1 in an automotive BMS
Hi, I have a list of questions about the bq76PL536A-Q1:I am thinking of using it to monitor a "string" of 100 Li-Ion cells in series for an automotive application.1. What is the maximum number of...
View ArticleForum Post: RE: Cannot put LMR62421 in Shutdown Mode
Fabio,There are two ways to shut down the switching mechanism of the LM62421.1) Bring the EN to GND (< 0.4V)2) Bring Vin below the UVLO level. On start-up this locks out the switching mechanism...
View ArticleForum Post: RE: UCC27210
Bradley,Someone from the product group will get in touch with you.Regards,John
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Forum Post: RE: Fuse placement bq20z65
Markus,It seems that there is an error that the FUSE placement is not actually shown on the schematic, but the external circuit components required to support the FUSE are shown. The FUSE signal,...
View ArticleForum Post: RE: Gas gauge & protector for 10+S BMS.
TomaszThe bq34z100 and bq77910A chipset is the best option that we have in production today. We have some new devices in development that should be released in 2 or 3 months.RegardsTom
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Forum Post: LM3150 - Power up problems.
To whomever can be of assistance. I have created this Circuit using the Webench software. When the PCB was returned and we attempted to power up we had no success. I’m wondering if any anybody might...
View ArticleForum Post: RE: LM3447 VCC Overvoltage Protection
TPS92640 is a synchronous controller for LED applications.
View ArticleForum Post: Multilevel Inverter Applications Notes
I am starting to design a mid to low power MultiLevel Inverter (~75V, ~150 Amps). I was wondering if anyone could point me to any information or applications notes that I could look at from TI or not....
View ArticleForum Post: TPS63060 - lower value FB resistors?
Is FB resistor of TPS63060 allowed with the following value?The recommended value of a data sheet is too large.<FB resistor> R1=100kΩ、R2=11.1kΩ @ Vout=5.0V
View ArticleForum Post: RE: TPS659113 RTC: Delay 1s after 20 min
Hi,Are you using external crystal or internal oscillator?Accuray for the internal oscillator is +/- 15% on page 12 of datasheet.
View ArticleForum Post: RE: Using BQ34Z100 with 12 NiMH cells
EdI responded to Dave's post. We do not collateral available on the bq34z120 a this time.Tom
View ArticleForum Post: RE: TPS23750 application question
Dear SirMany thanks for you reply,we met some issue that we test our board(reference PMP1360 Vout :12V/1A). when we power source to use adapter in. then output voltage start up is normal.But when we...
View ArticleForum Post: RE: bq20z45 - Is there an Undertemp charge threshold or similar...
You understand exactly what I want to do. I saw this on a manufacturer's datasheet and thought it was a good idea, but can't figure out how to do it. The pack whose datasheet I saw uses a z95, and I...
View ArticleForum Post: RE: Can TPS51220 be used by 99% ?
Hi Yusuke,Please contact Shuichi Ishikawa in Japan directly. His email address: s-ishikawa@ti.com.Thanks,Nancy
View ArticleForum Post: RE: LM25117 Output Capacitor
HiNo problem is there. You just need to increase your soft-start time because it will take a long time to charge up the output capacitor fully.Regards,
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