BQ40Z50: Purpose of FET in Reference Schematic
Part Number:BQ40Z50Hi There,I am developing a system using the BQ40Z50 gas gauge and I do not understand the purpose of one of the FETs in the Development Board Schematic.I am looking at the schematic...
View ArticleLP8556TM-EVM: Latest EVM schematic / layout and device option (NVM)
Part Number:LP8556TM-EVMTeam, could I have the latest EVM schematic and layout, since it looks revised from which shown on the user guide. Also the NVM (E2PROM) revision readback looks 02 while the...
View ArticleBQ34110: Use bq34110 for detect Lead-Acid battery, health and capacity remaining
Part Number:BQ34110Hi team,I would like to use bq34110 in my system side to detect the health status and capacity remaining of the plug-in Lead-Acid battery. The system only powered by the battery set...
View ArticleTPS7A52-Q1: VIN and EN port setting
Part Number:TPS7A52-Q1HelloAre there any problems when used under the following settings?Is it OK to use with the voltage setting below?I am concerned that leakage current will occur.Please tell me if...
View ArticleLMZ21701: LMZ21701SILR BODY THICKNESS
Part Number:LMZ21701Can you please provide us the Body thickness(without lead) for MPN:LMZ21701SILR?
View Articlewide range output dc/dc converter
Dear All,i am working on a dc/dc converter with the bellow charachteristics:- input voltage= 400 VDC- output voltage= adjustable from 0 to 400 VDC- output current= 1 A- isolatedhow can i do such a full...
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BQ24780S: the fig. about efficiency during charging
Part Number:BQ24780SAs far as I know. the higher the output voltage of the switching, the higher the efficiency. But as shown in the figure, the highest efficiency in the datasheet is 11.1 V.And why...
View ArticleTPS40210: PMP4540 questions
Part Number:TPS40210Hi Team,We got a question about PMP4540(Boost TPS40210)from customeras followings.www.ti.com/.../pmp4540Could you check it and give us feedback?Q1) C3, C4, C5, C6, What is the...
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BQ40Z50-R1: extra offset current ~100mA when charging if Send IT (Gauge) enable
Part Number:BQ40Z50-R1Dear TI Experts,My customer has designed BQ40z50-R1 in a 4S pack project. They've finished Current Calibration with 2A source, and performed Learning Cycle and updated Status...
View ArticleBetween TPS54540-Q1 and TPS54540B-Q1
We have questions about TPS54540-Q1.Question 1.Please tell us the difference between TPS54540-Q1 and TPS54540B-Q1.Question 2.Why do you release TPS54540B-Q1?TPS54540-Q1 is NRND.Do you have any problems...
View ArticleWhat is the DDR power specifications requirement for VTT and VTTREF
Could you tell me about DDR power VTT and VTTREF requirement?Are there DC and AC requirement? What level are those? Is there any ripple requirement or transient response requirement?Best Regards,Kohei...
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TPS659037: pin setting inquiry
Part Number:TPS659037Hi team,My customer is using TPS659037 power rail.They're wonder if they didn't connect the D8 PIN to anything, would this cause any problems to the VMAIN? According to the...
View ArticleTPS650250-Q1: Power up Sequencing
Part Number:TPS650250-Q1Hi team,I could found Power-up sequencing in this datasheet. the sequence is controlled by EN pins for each DCDCs. However, I couldn't find power good pins. would you please...
View ArticleBQ500212A: Qi V1.2.4
Part Number:BQ500212AHello Could BQ500212A wireless charging module pass Qi V1.2.4 qualification? Has any successfully case already pass Qi V1.2.4 qualification in the marketing? Thank...
View ArticleBQ24297: Is it possible for OTG pin to pull-up to SYS pin through 10kohm?
Part Number:BQ24297Hi Team,My customer wants to "OTG pin = High" in his application.Is it possible for OTG pin to pull-up to SYS pin through 10kohm in this case?I believe it is possible but would like...
View ArticleTINA/Spice/LM53602-Q1: PSPICE Transient Model for System Noise Simulation
Part Number:LM53602-Q1Tool/software:TINA-TI or Spice ModelsHello,Is LM53602 5p0V PSpice Transient Model accurate enough for system noise simulation of LM53602-Q1 supply circuit? Switching waveform at...
View ArticleTPS2490: @PMP9616
Part Number:TPS2490HiCustomer have a question about PMP9616 data.In "Start up waveform", 1.5 A flows for 40 ms.(As PMP 9616 FETs are used in parallel in , the current flowing through one FET is...
View ArticleUCC256303: UCC25630-3 Gate Driver LATCH OFF
Part Number:UCC256303DearWhen I use the IC UCC25630-3, it happens to shut down in the unprotection.IC'S GATE DRIVER stops working & Latching off.Why was it happened?Could you reply my...
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TPS65262: How to understand the enable function of TPS65262
Part Number:TPS65262TI`s engineer: How do you do? I have some questions about TPS65262. The following question is it. Number one: if MODE pin connect to GND, it will mean the...
View ArticleBQ78350-R1: BQ76930EVM (BQ78350-R1 + BQ76930) don't wake up on shutdown mode.
Part Number:BQ78350-R1Dear Sir,I have been test BQ76930EVM with Battery management studio.it connect SMBUS with EQ2400 and BQ78350-R1.and I commanded shutdown mode 3 times to BQ78350-R1. but BQ78350-R1...
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