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UCD3138: Questions of UCD3138 AD02
Part Number:UCD3138i Experts,I found there is a pulse when supply voltage V33A build up,it's only happened at AD02 , can you tell me why? thanks.Does it have any side effects?
View ArticleTPS92641: adjustable current source design
Part Number:TPS92641Dear TI Experts,My customer want to design an adjustable current source, current range from100mA to 10A, accuracy from 1ma to 5ma. They have tried TPS92641 but failed. Could you...
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BQ25120A: BQ25120A cannot wake up from Ship Mode.
Part Number:BQ25120AHi,I wrote 1 in B5 (Ship Mode) of Register 0. This will enter Ship mode. OK.However, when I press the MR button, the device will not wake up from Ship Mode.Even if VIN is connected,...
View ArticleLM5155-Q1: Does LM5155-Q1 need to use CS pin?
Part Number:LM5155-Q1Hi team,I have a question to CS pin of LM5155-Q1.Does LM5155-Q1 need to use CS pin? If LM5155-Q1 doesn't need to use CS pin, how to terminate the CS pin of LM5155-Q1?Regards,Nishimura
View ArticleUCC28780: UCC28780
Part Number:UCC28780I am doing a lot of recheck of our design schematic/pcb etc... of a product with UCC28780/sync rectifier with all GaN per design guide SLUSD12APl see attached pdf : seems a wire...
View ArticleUCC28780: It seems that a disturber came in
Part Number:UCC28780Hi, AllBut I want the opinion of a transformer expert.A TI's competitor flyback maker seem to be bringing in a large transformer, saying that QR Flyback alone can deliver 93%...
View ArticleLM3424: Maximum duty cycle
Part Number:LM3424Hello,My customer are considering LED driver and that has narrow voltage range for between VIN and VOUT.They want to use buck-mode because it is possible for higher efficiency than...
View ArticleUCD9090A: Different I2C address case between flash wiring and actually using
Part Number:UCD9090AHello, When the I2C address is different between when writing flash at 3rd party and when actually running on customer’s product, is there any problem? Regards,Oba
View Articlebq77915 IC failing with DSG pin shorted to VSS
Part Number:bq77915We've had a couple of incidents of our bq77915-based battery protection boards failing which we've been unable to explain. The circuit we are using is straight out of the datasheet....
View ArticleBQ30Z55DBTR-R3----mass production tool
Dear TI Experts,My customer need mass production tool of BQ30z55, to flash srec or flash data flash. Could you kindly help to provide? Thanks a lot.
View ArticleTPS54625: Output Latch Off Issue When Input Voltage Power Interrupt Test
Part Number:TPS54625Hi,My customer is doing power interrupt test, but the output voltage latched-off for some reason. I think this issue is similar to what discussed on the other thread. The input...
View ArticleQuestions of LM3481
Part Number:LM3481Hi Experts,Where can I find the design tool/excel file of LM3481 for boost application,thanks.
View ArticleDetails of transformer T7
Part Number:UCC28950Hi,I want to know details about shim inductor transformer T7.Do you have any datasheet or details likecore type:(is it PQ2020)material used?RegardsNidheesh
View ArticleTPS23880: Does pass the sifos test?
Part Number: TPS23880Hi TIDoes TPS23880 pass the sifos test?What is the standby power consumption?Thanks.Jerry
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UCC28070: Question about overvoltage function for PFC output
Part Number: UCC28070One customer is evaluating pin to pin short test, but test result was NG because PFC output became overvoltage and Electric capacitor open valve.Please let me know about three...
View ArticleTINA/Spice/LM5170-Q1: LM5170 mathcad calculation file
Part Number: LM5170-Q1Tool/software: TINA-TI or Spice ModelsHIDoes TI release Mathcad file of LM5170?Michael
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UCC3895: CS pin Input Circuit Bandwidth (Amplifier and output RC)
Part Number: UCC3895Hello Team,UCC3895 CS internally has a op amp circuit and RC filter. May I know if there is bandwidth information of the op amp circuit and the value of the RC filter?Thank...
View ArticleBQ25710: Counter plan for ISL9241 (Hybrid Power Buck-Boost)
Part Number: BQ25710When the condition of high current on 4-cell buck-boost charger, ISL9241 is higher efficiency than bq25710.I think that Hybrid Power Buck-Boost (HPBB) is matched high current...
View ArticleTPS40210 : External sync timing requirements
Hi team,Is there any timing requirement when the TPS40210 is used with the external clock sync ?Normally, there should be specifications for the pulldown/pullup pulse minimum timing.Thanks in advance...
View ArticleQi compliant LiFePO4 charger IC
Hello,I'm looking for a Qi compliant LiFePO4 charger IC.Is there any chip that can do this?Thank you for your feed back
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