TLV755P: difference of thermal resistance between theta(j-a) and theta(j-c)
Part Number:TLV755PDear Specialists,My customer is considering TLV755P and has a question.I would be grateful if you could advise.---According to the datasheet P.4 6.4 Thermal Information,RθJA of...
View ArticleTPS2553-Q1: Variation in output with temperature variation of surroundings
Part Number:TPS2553-Q1Hello,Had a query on how the output values varies with the variation in surrounding temperature.A characteristic curve or a tabulation will be helpful. The temperature will vary...
View ArticleTPS63060MDSCTEP
Hello,Had a query on how the output varies with variation in surrounding temperature. Any characteristic curve or tabulation would be helpful. the surrounding temperature varies over the full range as...
View ArticleUCC28722: UCC28722
Part Number:UCC28722HiRegarding 28722 the capacitor on VDD pin is mentioned is slau721a is 4.7 mfd, if I reduce to 2.2 mfd which parameter I should check so that functionality of UCC28722should not get...
View ArticleBQ76940: BQ76940: Coulomb Counter false values
Part Number:BQ76940Hi experts,I'm experiencing strange experience with the coulomb counter of BQ76940. There is no load connected to the board and DSG = 0, CHG = 0. Despite of this, when I read the CC...
View ArticleUCC28064A: Disable burst mode
Part Number:UCC28064AHi TI experts,Some of my customers want to disable burst mode.So May I connect BRST pin with ground? Are there any side effects? Can you tell me a better way?Can the BRST pin be...
View ArticleClik here to view.
LM5009: Switching pulse at PFM operation
Part Number:LM5009Hi,The customer is evaluating LM5009 and they found that the switching pulse count is varied depend on input voltage. I tried to measure by using EVM with default external components...
View ArticleLM3429: start up time
Part Number:LM3429Hi,It takes 30ms to start boost operation after input voltage to VCC pin (nDIM pin). Is it correct?Please let me know if there is any missing information.Best regards,Yuto Sakai
View ArticleTPS54332: MTBF OF COMPONENT
Part Number:TPS54332Hello,As want to calculate MTBF of PCB related to my project. So anyone kindly provide me the MTBF(mean time between failure)of TPS54332.Also Where should i get the MTBF of other...
View ArticleTPS65921: Alternative survey
Part Number:TPS65921Hi Team,I would like to know the replacement device for TPS65921B1ZQZ.Please don't worry if it is not 1 chip, suggest it to me.Best Regards,Kenji
View ArticleTLV700: Problem with TLV70033DDCR
Part Number:TLV700Hi Team,I have problem with TLV70033DDCR:Input +4.4VOutput shall be 3.3VOutput capacitor 100nFIn part of devices there is good stable output +3.3VBut on part of devices output is...
View ArticleUCD9090-Q1: Best way to perform programming in serial production
Part Number:UCD9090-Q1Hello,We have converged on our UCD9090-Q1 programming design.To address the serial production of our boards, we are searching for the best way to program the components without...
View ArticleTPS544B25: Same PMBUS for 3 x TPS544B25
Part Number:TPS544B25HI Team,1) In schematics of a new card I want to use 3 x TPS544B25 (AVS).Can I add only 1 x PMBUS Connector for 3 x TPS544B25?I want to control separately each one.2) Attached the...
View ArticleUCC28070A: UCC28070A
Part Number:UCC28070AFOR INPUT RANGE 180-265VAC POWER 3000W OUT PUT 390V DC WHICH FREQUNCY IS SUITABLE ?ANY ONE KNOW WHICH MATERIAL FOR CORE INDUCTOR CAN WORK ON HIGH RIPPLE CURRENT I HAVE 17A RIPPLE...
View ArticleLP8556: Broken devices on the field : Power on constraints
Part Number:LP8556On a new project we have a bad feedback from the field as we have a lot of Lp8556 broken (on power on the Vldo is quiet null and becomes hot at 70°C without any regulation and no...
View ArticleBQ77905: CHRG_FET pin behaviour at UV
Part Number:BQ77905Hello,I have troubles when testing my BMS with 4 stacked bq7790508.At UV fault, the DSCHRG-FET turns off correctly. But sometimes, also the CHRG-FET turns off (not 0V but ~250mV).Has...
View ArticleTPS3702: Worst case of threshold voltage
Part Number:TPS3702Hello,Let me confirm about below.* According to datasheet DC spec, when user will use TPS3702C with ""SET" pin = High".threshold is set to "+/-4%".In addition, accuracy of threshold...
View ArticleClik here to view.
TPS54526: EN (enable) Pin issue
Part Number:TPS54526Hi All,I am using TPS54526 buck converter to generate 5V from 15V input. The ENABLE pin is pulled up to Vin i.e, 15V through a 100K resistor as shown. The issue is, on powering the...
View ArticleTPS568215: UVLO as VIN voltage scale
Part Number:TPS568215Hello I have a question about UVLO specification of TPS568215.Now a customer is considering to use it with VREG5 = Output configuration.Then they need to understand UVLO...
View ArticleBQ27426: BQ27426
Part Number:BQ27426Even though this device is not programmed by users, does this device have an internal programming voltage boost circuit for TI factory programming.We need to know this in order to...
View Article