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LiFePO4
Related Posts

  • Forum Post: Solar charging of 3 LiFePO4 cells using BQ24650

    Kjetil46144
    Hi, I am looking to implement a battery charger using BQ24650 (EVM as a starter), charging 3 LiFePO4 cells from a solar panel, and have a clarification question; what external features will I need and what solutions does TI offer that can provide the functionality I am looking for. The LiFePO4 cells...
    on Mar 10, 2011

  • Forum Post: Power Path Charger - Part Suggestion

    Borislau Jevic
    Hi, I wanted to suggest a new part for the power path family. My suggestion is the following: Multi-cell charger. Can charge one, two, three or four cells. Pin selectable for Li-Ion/ Li- Pol and LiFePO4 Has two separate input paths, one USB (or x2 for a total of 1 Ah) the other...
    on May 23, 2011

  • Forum Post: LiFePO4 Charge Profile Lithium Iron Phosphate

    John Griffith
    Team, I have a customer that is looking to charge a 3-cell Lithium Iron Phosphate battery (3.3 V each at 1.5 amps). Do LiFePO4 Batteries have the same charge profile as Lithium Ion batteries? Can I use a lithium ion charger with the correct max charging voltage and current settings? Thanks, ...
    on Jun 3, 2011

  • Forum Post: Re: LiFePO4 Charge Profile Lithium Iron Phosphate

    Chris Glaser
    Lithium phosphate batteries generally require a different charge profile than lithium ion batteries. But you need to get with your battery manufacturer to understand how they want their batteries to be charged. We do have chargers specifically for Li phosphate batteries, such as the bq24620 and bq24630...
    on Jun 3, 2011

  • Forum Post: bq24620 charger for 5 cell LI-poly batteries

    swapnil katre
    i have used the application note of bq24620 and built the pcb for charger. Charger is for VIN=28V, BAT=5-cell Li-Phosphate, Icharge=4A, Ipre-charge=0.125A, Iterm=0.3A. i have started testing the circuit and observed the STAT and PG led are Glowing, without connecting the Batteries to it. According...
    on Jul 16, 2011

  • Forum Post: Re: Using BQ2954

    boon seong thng
    Hi Charles, Thanks a lot for your reply. As you have requested, the following is the info to add on to what I provided earlier. 1) We are connecting 4 cells in series, total battery pack voltage for the 4 cells is arnd 13.2V (arnd 3.3V per cell). 2) The Vin we are providing is 17V . We have...
    on Apr 10, 2012

  • Forum Post: Re: Using BQ2954

    boon seong thng
    For the LEDS, 1) BTST led on means: BTST pin from the IC is high. CHG led on means: CHG pin from the IC is low. 2) I'm sorry, that was a mistake, it is 4 LiFePO4 cells in series . 3) The voltage across our current sense resistor (0.05ohms) is 12.5mV. The datasheet of our current sense...
    on Apr 11, 2012

  • Forum Post: Re: Using BQ2954

    boon seong thng
    The following are the waveforms at the various IC pins of bq2954 and the power mosfet Q5 in our circuit (All waveforms taken CH2 on oscilloscope): MOD waveform at pin 14 of IC: TS waveform at pin 8 of IC: SNS waveform at pin 7 of IC: BAT waveform at pin 3 of IC: ...
    on Apr 11, 2012

  • Forum Post: BQ2954 charger circuit problem with input voltage

    Sumit Bhowmick
    Hi, I am using bq2954 IC from TI in my charger circuit to charge 2-cells (LiFePO4) in series. I have used the circuit in the following application notes. (Please visit the site to view this file) I have modified the above circuit to charge 2-cells in series. I have also replaced Q1 to Q4 using...
    on Mar 27, 2012

  • Forum Post: bq25504 and lifepo4 cell

    Albert Gil
    Dear sir, Can I use bq25504 to recharge a single LiFePO4 cell? Thank's
    on Feb 22, 2012

  • Forum Post: bq246xx Battery Cell Charger

    Daniel Serrano Fern��ndez
    Can you tell me if I can use the bq24630 to charge 2 series LiFePo4 batteries (each one includes 4 cells of 3.2v) with the next characteristics. 12.8v @ 8Ah. Charge Current= C/3 = 2.6 Amp Nominal discharge current = 3C = 24A I want to use it with a load which nominal current is 6Amp, so I can...
    on Nov 12, 2012

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