Forum Post: RE: Question about TPS3860x0
Thank you for your answers.One more thing: What if I don’t want to use WatchDog at all? Would that be a problem if I left WDI and WDO unconnected?Cause I was looking into datasheet and I figured that...
View ArticleForum Post: RE: Process technology
Knowing the technology process is necessary when you analyze a BOM for radiation vulnerability study of an electronic system. Some semiconductor manufacturers give this information with reliability...
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Forum Post: Switch Node Spike/RInging -- LM3445
I out together the LM3445 circuit as outlined in the "Triac Dimmable Offline LED Driver" data sheet for the LM3445http://www.ti.com/lit/ds/symlink/lm3445.pdfI constructed my own PCB.I customized it as...
View ArticleForum Post: RE: Isolated DC-DC converter
Also this power supply will be running 24x7 so please suggest a rugged industrial design.thnx
View ArticleForum Post: RE: Unable to increase quantity from 0 on PTN04050CAH
Tom, i'm also having problems adding samples to my cart. Let me know,ThanksJose
View ArticleForum Post: RE: LP38500-ADJ REGULATOR OUTPUT SHORTS TO GROUND
Hi Leonard,The customer stated that he can measure from the output pin to the ground pin and there is zero resistance. The customer replaced the device on the board and placed a heat sink on the...
View ArticleForum Post: RE: BQ25570 - latest release details and can the setup be altered...
There is a PMOS FET between the VBAT and VSTOR pins that remains on as long as VBAT > battery undervoltage threshold, internally set to ~2.0V. So, as long as the battery is above 2.0V, VBAT=VSTOR....
View ArticleForum Post: RE: bq25504: using Vbat to provide V_in to run below cold-start...
Except for the cold start circuitry, the bq25504 IC is actually powered by VSTOR when VSTOR > ~1.8V. The VBAT pin is connected to the VSTOR by a PMOS FET that turns on when VBAT > 2.0V. So, as...
View ArticleForum Post: RE: BQ24210 TPS73733 solar charger
I suggest either bq24250 configured to charge from a solar cell or bq24650. bq24210 would operate but would be thermally limited due to your high input voltages.If you use the bq24250 with separate...
View ArticleForum Post: RE: USB BOOST CHARGER FOR 2S LI-ION/PO
If cost is a concern, I suggest a low cost boost converter like TPS55340 followed by bq2057.
View ArticleForum Post: RE: Not Getting PWM pulses from TPS40054
Hi Sharmila,Please excuse the delay. I shipped the 2 bare boards to you this morning only. Find below an excerpt of the shipping info including the tracking number:Texas Instruments sent Shamila B. of...
View ArticleForum Post: TPS7H1201S parallel LDO configuation
Hello, I'm attempting to use the TPS7H1201S in a design i'm working on. I would like to configure this in the parallel mode for increased robustness, however i'm am not sure how to size "Rcl". The...
View ArticleForum Post: RE: LM317 used as a Constant Current Source
Hi Ron, Please let me know if you've run the tests.Thx-Satish
View ArticleForum Post: RE: Device entering DPPM MOde (bq24073)
When you upped your Vin, was the 6.5V measured at the IC pins or from the supply? You could have a voltage drop across the leads from your power supply to the IC. Have you tried loading the OUT pin...
View ArticleForum Post: TPS2421-1 Short circuit and low resistance
Hello,I was hoping I could get a little clarification on the TPS2421-1 at start up during a fault condition. I am interested in the since I am trying to do a damage analysis due to an incorrectly...
View ArticleForum Post: RE: Threshold regulator with PIN 5 ON/_OFF of the LM2576HVT-ADJ...
Michele,To regulate on current flow, connect ADJ pin to ground through a "shunt" resistor. Connect load between output capacitor and adjust pin.The regulated current will be 1.23V/Rshunt. no external...
View ArticleForum Post: RE: Request to provide the Current consumption for the Pin1...
Vinldo12 pin is used to power internal bias, references, and logics. Hence depending on the operating condidtions such as Vin, Vout and loading this migh change thus is not practical to issue a...
View ArticleForum Post: RE: TPS65290BM and PWR_BB2 output
Hello,It should be an straiightforward procedure. Can I please ask you to confirm what yoy write on the register box as per the instructions on Page a0 and figure 7 of the EVM document?Luis Huertas.
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