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TPS65400EVM-678: i2c connection
Part Number:TPS65400EVM-678we have got one evm board, we were not able to communicate with it using USBANY EXPLORER although we followed the user manual.I have starting developing the FW to communicate...
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UCC28780: UCC28780 powered on with very light load
Part Number:UCC28780Hi,I use UCC28780 to design a 5Vout design, and I face the issue at light load.1. When power on the board with 0A load, the output voltage is not regulated to 5Vout, varies between...
View ArticleTPS7A45: TPS7A4501 Question About Overshoot at power up
Part Number:TPS7A45Dear support member,My customer made board of TPS7A4501.Overshoot at power up was became.I have a question.Q1My customer measured overshoot of about 0.4 V.Is it reasonable?Q2Is there...
View ArticleLM5026: LM5026 Current limit
Part Number:LM5026Hi team,I have 2 questions about current limit of LM5026.1. The datasheet mentioned the current limit will active If the sensed voltage at the CS comparator exceeds 0.5 V, the present...
View ArticleTPS7H3301-SP: Aging degradation effect
Part Number:TPS7H3301-SPHello,This is related to the aging question that was previously posted for this component. I'm carrying out an EOL analysis on this VTT regulator, but a longer mission scenario....
View ArticleTPS2546: TPS2546 can not charge to IPHONEX when phone's screen was locked
Part Number:TPS2546Hi Team:We configured TPS2546 as CDP in notebook system, when plug IphoneX into this charging port, notice that Iphone X can’t be charged if phone's screen was locked, while can be...
View ArticleLM3488: The output presicion
Part Number:LM3488Hi,The input voltage is 5V, and the output voltage is from 0V to 300V/5mA. I want to use MCU to control the output voltage which varies from 0V to 300V.My question is: what the output...
View ArticleUCD9090A: How to set up power off
Part Number:UCD9090ADear Team,Is UCD9090A can support GPI to do the power off sequence?Customer wants to use GPI to monitor few rail trigger the power off.BRKevin
View ArticleBQ24630: Charging NMC batteries with BQ24630 (Lithium Nickel Manganese Cobalt...
Part Number:BQ24630I am working with the BQ24630 for a LifePo4 charger, but want to charge the latest version of Lithium cells now, NMC.Differences between LifePo4 and NMC:LifePo4:nominal voltage:...
View ArticleTPS74801: Bode plot measurement
Part Number:TPS74801Hi team,For TPS74801 or general LDO product, is bode plot measurement needed to make sure the stability?If yes, how can we fine tune TPS74801 if the gain/phase margin is not...
View ArticleBQ40Z50-R1: reprogramming bq40z50-R1
Part Number:BQ40Z50-R1I am having some difficulty reprogramming the bq40z50-R1 using bqStudio 1.3.54.1. When I attempt to download a .gg.csv file from my data storage andwrite it to the data flash, it...
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BQ24780SEVM-583: Learn mode
Part Number:BQ24780SEVM-583Hi expert, I connect Vsys to a CC mode E-load and connect Vbat to a power source. When I enable the learn mode by battery management studio. The Vsys is still equal to...
View ArticleTPS2660: Device shuts down output power when a computer is connected
Part Number:TPS2660I am using TPS2660 for distributing power to a couple of devices. The peak current requirements are within the 2A limit set by R(ilim).I am able to power some of my other circuit...
View ArticleBQ24400: NRND: what do we advise for new design?
Part Number:BQ24400Team,What active device would be the closer to BQ24400 in term of specification?Thanks!Anthony
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TPS54202: The PWM waveform at SW feet will wobble
Part Number:TPS54202Using the following circuit, Vin=20V and Vout= 3.6V.Load plus 0.5A, but the PWM waveform jitter in SW foot, how to solve？
View ArticleBQ40Z50-R1: User Memory Block?
Part Number:BQ40Z50-R1Is there any way for the user to save a small block of data in flash (<1k)? If no, is there a similar gauge that has this capability?
View ArticleBQ24725A: Why won't the device reset with no adaptor connected?
Part Number:BQ24725AHi,in the datasheet it says the device will reset if ACDET<0.6v, since ACDET is from adaptor, if no adaptor is connected, ACDET should be 0 and the device can't work.Where am I...
View ArticleLMR14006: Inverting output
Part Number:LMR14006Hi,Has anyone tried to use the LMR14006 as a inverting converter? From my understanding, the LMR14006 could be used as the TPS54060 to get an negative output. I want to design a...
View ArticleBQ24261: Recovery from ESD Event
Part Number:BQ24261ESD testing causes device to stop charging. Charge current drops from ~400 mA to ~100 mA and charger status reads "READY". Can read battery voltage before and after ESD event over...
View ArticleBQ3050: bq3050 BootROM mode and .senc file
Part Number:BQ3050Hi,I wanted to access the .senc file for bq3050. Therefore, I used the bootROM mode (0x0f00 command) in order to download the .senc file.Following that I loose communication access to...
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