Forum Post: BQ24079 / Ron of FET connecting the battery to the system output
Hi,Can we know the Ron of FET connecting the battery to the system output? Our customer need to estimate the loss at the FET when powering system from battery.Best Regards,Sonoki / Japan Disty
View ArticleForum Post: RE: bq24195 / PMID output at VBUS connected
Hi,When can I have your response?Best Regards,Sonoki
View ArticleForum Post: RE: LM3559/LM3530 GUI
Thank you PAN-M,Thank you for your checks/additional data. I have forwarded this message.Regards,Sami
View ArticleForum Post: The VIO for TPS65217B
In the User's Guide of Powering the AM335x with the TPS65217x,the VIO is connected to VLDO1 which is 1.8V. But in Bealgeboard design, it is connected to LDO3 which is 3.3. when VIO is connected to 1.8V...
View ArticleForum Post: RE: strange H-bridge driver signal for UCC28950
Dear Flavio,Value of inductance was calculated based to frequency 200 kHz, but I am already using 6,1 uH.NAND gates are used because of propagation delay in primary side that is about 10 - 20 ns and it...
View ArticleForum Post: RE: bq78PL114S12 low power ship mode fails if 'safe disconnect'...
yes, many others still exist too...
View ArticleForum Post: BQ24170
Hi,I am using the BQ24170 with 12V input and 2-cell battery almost identical with the schematic (Same FETs, Diodes with a few resistor changes for charge current) and layout in SLUU463 "bq24170EVM". I...
View ArticleForum Post: RE: peak input current with UCC28070
I have two controllers in parallel and synchronised with 2 clock 180 deg out of phase. So the four cells are 90deg interleaved. I try to work with one controller (so 2 phases) and the same problem...
View ArticleForum Post: RE: UCC28810EVM-003 Start up delay
Hello Mike,Thanks for your reply.One more question;Could you tell me the power components which are subject most to the start-up stress?Best regards,Yesok Yoon
View ArticleForum Post: TPS51220 / About the operation at the time of a light load .
(Please visit the site to view this file)Hi,Now our customer is evaluating TPS51220 with forward configuration.Please see actual waveform in attached.Is this operation right? Although TPS51220...
View ArticleForum Post: RE: Advanced BQMtester and EV2400
Just to clarify things, I do have the Advanced BQMtester and the the datasheet for this, SLUU397A states the following: FEATURES– Programs and Calibrates Smart Battery Modules Based on the Following...
View ArticleForum Post: RE: A merit of TPS2540 In comparison with TPS2540A
Dear Milo-San,Thank you very much for your kindly response.Please teach us a detail of "some HDD" in addition.Will it be that there are the standard of some HDD products needing to "a longer detach...
View ArticleForum Post: Beagleboard I2C connection to UCD90xxx
Has anyone used a TI Beagleboard or Beaglebone to control a UCD90xxx sequencer via I2C/smbus?Ted
View ArticleForum Post: RE: LM3671-Q1 1.25V
Hi John, Only the 1.2v -Q1 version is available now, the 1.8v version in 2013-Q3, no other versions are planned. The way the VOUT is set is with an internal voltage divider to the FB pin, similar to...
View ArticleForum Post: RE: Disabling the Voltage Feed-Forward in TPS40057
Hi Na,The module starts up eventually with long delay time without a schottky diode, but it starts up in 30mS with a schottky diode.I designed OCP trip 15A for 12A full load, but the unit starts up...
View ArticleForum Post: RE: LM317AMDT TO-252 Theta JC/JA Questions
No internal planes. Two sided only.I don't see any information for the copper thickness used.
View ArticleForum Post: RE: What are the Symptoms of bq77910a?
The part is seeing a simultaneous under voltage and over voltage. There may be some contamination on the board causing 2 cell input pins (VCx) to pull together causing one cell to see a low voltage...
View ArticleForum Post: RE: UCC28950 / Position of current transformer
Hi Mike-san,I'm sorry that I commented wrong information in attachment. Please see revised one. They already added bridge rectifier as attached schematic. Is this configuration incorrect?Best...
View ArticleForum Post: RE: Setting up Advanced bqMTester
Pat,The Update Status should change to 0E and MaxErr to 1% on the next discharge cycle. Make sure that the discharge current never drops below a C/10 level.RegardsTom
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