Forum Post: RE: Possible to use LM5113 as single-side GaN FET driver?
Thank you for your help. :-)BR,Øystein Johnsen.
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Forum Post: RE: TL5209 vs derating
Hello,I found out MTBF information on TL5209's web page:My bad !Sorry for this useless post.PAM
View ArticleForum Post: RE: calculate CBat and CStor of BQ25504
Thanks Jeff,now i want to add an Supercap to VBat. When the Supercap is emty, i have to wait until the SuperCap is charged to have an good VStor?
View ArticleForum Post: The FIR/EFR data of TPS22912CYZVR
Please teach us the simulation data of TPS22912CYZVR.・FIT (Failure In Time)・EFR (Early failure rate)The simulation condition as followsAmbient Temperature : 55degreeC and 75degreeCPeriod of using this...
View ArticleForum Post: DC/DC boost IC
I am looking for DC/DC boost converter isolated/ non isolated solution, can any one provide solution, IC for the same? IC cost shuld be less than US$1.00
View ArticleForum Post: TPS65910A3 VRTC issue
HI,We are using this TPS65910 with Am335x and found that VRTC is proving 2.8V suddenly..We quickly isolated this VRTC of SoC. We are also seeing VBAT is dropped to 2.8V with constant current source of...
View ArticleForum Post: RE: TPS65910AA1 VRTC & AM3359 VDSS_RTC
Dear Flore, We too experienced similar issue but we could isolate SoC VRTC and PMIC VRTC...when checked ( in isolated condition), PMIC is providing 2.8V instead of 1.8V. And it is also observed that...
View ArticleForum Post: charging 2 li-on or lipo batteries
Do you have an charge ic for dual li-on/li-po batteries?
View ArticleForum Post: RE: LM3150 3.3V 4A supply goes into overvoltage mode
I took a step back and tried what would happen if I try some variations of the original design.I tried various values for Cff (none, 10p, 56p, 560p, 820p) and found the best results for no Cff (3.34V...
View ArticleForum Post: RE: BQ51050BEVM-697 availability?
EVM can be requested though the below product folder.http://www.ti.com/tool/bq51050bevm-764 Under “Order Now” the request button will take you to a form for approval.
View ArticleForum Post: RE: How to calculate pull-up resistance
Vivek,The IN pin needs to be at least 2.3V; the input current is less than 1uA. So just about any resistor will be fine. I prefer resistors between 1k and 100k. 10k to 5V is good.
View ArticleForum Post: RE: Problem with LM5118
HiSince there is no internal pulldown switch at UVLO pin and there is an external resistor divider at UVLO, Your input power supply might be current limited.Otherwise, please replace IC and then test...
View ArticleForum Post: RE: TPS61025 use on TPS61020 EVM?
Yes, for the fixed voltage versions of the TPS6102x, the FB pin should be left floating as indicated in the application circuits in the back of the D/S.
View ArticleForum Post: RE: LM3478 EVAL BOARD EXTERNAL NFET OVERHEATING
Thanks for the prompt reply.WEBENCH recommended substituting a Vishay-Siliconix SIR812DP-T1-GE3 NFET for the FDS6690A but from the data sheets, it looks like the FDS6690A is a better choice. Maybe I'm...
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Forum Post: RE: BQ2000T regulator
The resistor divider is to detect Over Voltage.When no cells are in place, the charger output will go high, indicating there is no load on the charger.As a pack is inserted the charger output will...
View ArticleForum Post: RE: Fusion Digital Power Designer latest release 1.8.280 (29th of...
The issue is fixed in the latest Fusion GUI release 1.8.284 on TI website: http://www.ti.com/fusion-gui
View ArticleForum Post: RE: Achieving minimum parasitic drain from BQ24650
Ok, i found the error.thanks anyway
View ArticleForum Post: RE: Buck-Boost Regulator around LM5118 - ramp generation
Hi SonuIf ignore the additional term (50uA) from the equation (2), it results. IRAMP=5u*(VIN-VOUT) [A]. And then we can say dVRAMP/dT = 5u*(VIN-VOUT)/CRAMP since I=C*dV/dTAssuming a resistor sensing...
View ArticleForum Post: RE: PFC Choke getting hot
Hi Lisa,I increased the load to2.5A , within 15 min, PFC choke went upto 75c and its increasing further.Here are some more info,My first board PFC capacitor got burnt. I didnt check for the PFC choke...
View ArticleForum Post: Simple circuit to control LDO enable with a momentary switch w/...
Greetings,I am designing a low-cost, battery powered consumer electronic product which will use a momentary switch to power the device on and off. To do this I'm hoping to make a simple circuit to...
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