Forum Post: RE: BQ20z65-R1 - accuracy and resolution of measurement voltage,...
The voltage ADC has a max full-scale uncalibrated error performance of +-0.7%. . The coulomb counter for current measurement has a full-scale error of +- 0.35%. These can be further improved with...
View ArticleForum Post: LM25085 : Feedback Voltage Ripple Causing Output Voltage Offset
My ProblemI have designed and built a LM25085 circuit that nominally produces a 19V output. The design has about 100mV-150mV of ripple on the output voltage and uses the "reduced ripple...
View ArticleForum Post: RE: LM2623 Efficiency at 10, 12, & 14V DC
Rustin,See my response to your other post for this device http://e2e.ti.com/support/power_management/non-isolated_dcdc/f/196/p/264245/924007.aspx#924007
View ArticleForum Post: RE: LM2623 Output Current and Efficiency
Thanks Jeff. Will try that right away.
View ArticleForum Post: RE: BQ24650 6mA discharge current issue
Did you guys tried putting the schotky diode just before the upper FET 's drain? As TI engineer Varun informed me to do so but I am on vacation and couldn't do the test. Thank you.
View ArticleForum Post: RE: Energy Harvesting Module
bq25504 can accept input voltages up to 5VDC and can only charge up to 5V on the output. You must rectify the AC output of a piezo source. I suggest TPS62736 for your step down.
View ArticleForum Post: RE: Controller Selection
Anthony,If you could remove the "Controller Selection" thread from the forum, I would appreciate it. Apparently I should not have been discussing this project as openly as I was. Thank you very much...
View ArticleForum Post: RE: INT- LMZ10503 NOISE ON ENABLE PIN
Hi Nicola,We haven't seen any issue comes from this before. The EN voltage of this part does show coupled SW waveform on top of the DC value when it is pulled up to VIN, due to the high impedance...
View ArticleForum Post: RE: LM2623 Voltage Ripple
Hi Daniel,I was expecting the board to come in this afternoon but it hasn't. It should be in on Monday for sure and I'll give you feedback on it then.My apologies for the delay,Anston
View ArticleForum Post: RE: GERBER REQUEST FOR PMP2645 USING TPS40055PWP
Dear Na Kong,Thank you so much for the extra help in providing both the gerbers.thanks a lot,regards
View ArticleForum Post: TPS54332's function of no load (0A) condition
Please teach us TPS54332.Customer tried to check TPS54332's function on their board.Their setting of Vin/Vout is following.Vin ：5.2VVout ：1.18VWhen no load condition of output(0A), customer confirmed...
View ArticleForum Post: RE: LM22670 adequate for Conversion +5V - -3.3V, 2A ?
Hi Anston,Thank you very much for the schematic. It is exactly what I was looking for. I'm really looking forward to try it out. However, I would be very happy if you or one of your colleagues could...
View ArticleForum Post: RE: LM26001-Q1 shutdown current
Hi Yamauchi-san,1. Yes, the shutdown current will move higher as temperature increases. The LM26001 covers the range of +125C (Tj) with a max of 20uA.2. If the ambient temperature goes lower yes, the...
View ArticleForum Post: RE: LM5008 dropping out every 8 ms
Is anyone out there? This seems to be a start-up problem. It gets into some sort of a limit cycle and is unable to finish powering up. It regulates nicely for about 7ms and then shuts off, allowing...
View ArticleForum Post: PWM for Peltier Thermoelectric Module
Does anyone have a suggestion for a PWM I could use for the following application. I want to use a Peltier thermoelectric module (TM) to power a mini DC water pump. The specifications for the TM...
View ArticleForum Post: UCD3138 projects immigrate from ccs3.3 to ccs5.x now?
I had seen that this immigration will be done in may,2013, how is getting along with this?
View ArticleForum Post: UCC28070 - DC Bus Drops Drastically from 400V to 200V
Hi ,We build 3kW Interleaved PFC works from 90-265V AC and it is Working Fine.Now the requirement has come to Work form 120V Battery. When I feed 120V DC to the input of the rectifier, it is Able to...
View ArticleForum Post: LM5113 GaN FET driver? Isolation?
HelloHas anyone successfully used the LM5113 yet?My question is whether I need to isolate the HI and LI inputs from my uC. (I am doing a DC 48 V to DC 12 V conversion with a synchronous buck topology)....
View ArticleForum Post: RE: Hot LM25119 problem
HiLM5119 requires the 7mA Vin operating current. I guess the rest of current is consumed by switching loss including the snubber loss.Light load switching operation highly depends on the leakage...
View ArticleForum Post: RE: Suitable Gas gauge IC for LiFePo4 6.6v 9.6A battery pack
Hi Onyx,i think it is the most latest verson from Ti right?it is suitable for Lifepo4. thank you very much.is there any old/previous Fuel Gauge IC s for Lifepo4 technology please.we are presentely...
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