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bq78PL116
Related Posts

  • Forum Post: Re: Software needed to develop bq78PL114.

    Jim M15252
    Read the first chapter of SLUU330b, if not done already. The bqWizard is for prototype development. The API is a development platform to allow users to create software used in production. Read SLUU414 for details.
    on Nov 11, 2010

  • Forum Post: Re: bq78PL114 - How to access the ChargeCompletion (CC) flag

    Jim M15252
    The Charge Status Register, which contains the Charge Completion Bit, can be viewed using standard SMBus commands at registers 0x3C - 0x4B in the case of the bq78PL114S12 and 0x3C - 0x58 in the case of bq78PL116. Use the bqWizard to change the default configuration of these registers to a host of parameters...
    on Nov 11, 2010

  • Forum Post: Re: Use bq78PL116 PowerPump circuit for new bq78PL114 designs?

    PerBear
    I have a related question: Is the bq78PL116 a drop-in replacement for the bq78PL114S12? The replacement of the 2k resistor with 100R in series with 10nF cap seems to be the only change in the schematic, and the pin description is AFAIK identical. TI - please enlighten us! :-)
    on Nov 16, 2010

  • Forum Post: Re: Use bq78PL116 PowerPump circuit for new bq78PL114 designs?

    PerBear
    John M IIRC, after reviewing the datasheet further, they also changed the V1-V2, V2-V3, etc., caps from 1uF (in bq78PL114 ref. sch.) to 10uF (in bq78PL116 ref sch). I asked about that a year ago. Here is my question and TI's answer: I am working on my layout now (4-layer board) but...
    on Nov 16, 2010

  • Forum Post: Re: bqWizard 3.0.16

    PerBear
    Thank you for the new bqWizard 3, it is much easier to use than the last one. One question: In the bqWizard software it mentions that the bq78PL116 only supports the four temperature sensors in the master but none on the slaves. Is this correct?
    on Nov 19, 2010

  • Forum Post: bqWizard 3.0.16

    Jim M15252
    The new bqWizard 3 is now available for download. New Features Include: Compatible with bq78PL114, bq78PL114S12 and bq78PL116 Pack Configuration Utility for generating .tmap files. Improved Aux File Generation Utility (.aux) SBData Mapping Utility (.sbd) SMBus Address Scan allows...
    on Nov 11, 2010

  • Forum Post: FAQ [bq78PL114/bq78PL116]: Is a Learning Cycle needed in Production?

    Jim M15252
    The bq78PL114S12 and bq78PL116 do not need an initial learning cycle for every pack that comes off a production line. An off-line learning cycle is done on one pack at the completion of product development. This Off line Auxiliary Chemistry Test, taking upwards of 10 hours, is described in application...
    on Dec 9, 2010

  • Forum Post: Re: Using less temperature sensors on BQ78PL114 than the actual number of cell

    Jim M15252
    Unused sensors are left open circuit - no problems. Use the bqWizard 3.0.16 to upgrade your firmware to bq78PL114S12 or use the new bq78PL116. Then use the Pack Configuration Utility in the bqWizard to create a .tmap file which will specify how your temperature sensors are arranged.
    on Dec 16, 2010

  • Forum Post: Re: BQ78PL114 IGRR failure

    Jim M15252
    Look at the description of this safety feature in the SLUU330b Technical Reference Manual. This could be indicating a problem with your pack, like a broken weld strap. Relearn/Initialize should clear safety counters.
    on Dec 16, 2010

  • Forum Post: Re: Using less temperature sensors on BQ78PL114 than the actual number of cell

    Jim M15252
    You cannot use a FW5000 .tmap with FW4452. I strongly recommend moving to bq78PL114S12. If you are using the EVM for development there is a simple upgrade procedure. All that is needed in terms of hardware is a soldering iron and some solder.
    on Dec 16, 2010

  • Forum Post: bqWizard 3.0.16 Demo Mode

    Jim M15252
    The bqWizard 3.0.16 has a demo mode in which the user can preview the operation of the software without a bq78PL114 or bq78PL116 connected. It is useful for making .aux files and .tmap files too! One of the ways to run it is... Under the Windows Start Menu Select "Run..." Type "bqWizard...
    on Dec 16, 2010

  • Forum Post: BQwizard version 3: where's the SAA_Utiliity.zip???

    Larry Ruckman
    I am evaluating the "BQ78PL114EVM-001". I am using the "USB-TO-GPIO" to communicate to this evaluation module. I am running the BQwizard version 3 software on a 32-bit Win XP platform. The BQwizard software documentation says that you need to reprogram the USB-to-GPIO module...
    on Dec 25, 2010

  • Forum Post: Re: BQwizard version 3: where's the SAA_Utiliity.zip???

    WM5295
    The firmware in the USB-to-GPIO can be updated with the (Please visit the site to view this file) utility. It should be easier to use than SAA_Utility, has a feature to save the current version as well as update, and the installation has the has the new & old bin files. The USB2GPIO-LOADER-SW has...
    on Dec 28, 2010

  • Forum Post: Re: LI-PO LI-ION conflict and current limitations for BQ78PL114 + BQ76PL102 Evaluation Kit

    Jim M15252
    Please read app note SLUA542. Then use bqWizard 3.0.16 and the new Utility called PackConfiguration to set the value of your sense resistor to 0.0005.
    on Jan 3, 2011

  • Forum Post: Re: cant read bq78PL114 EVM parameter on SMBUS

    Jim M15252
    This could actually be a sign that not all eight PowerLAN nodes are being built. Each cell has a PowerLAN node associated with it. A reading of 2000mV means that communication between the bq78PL114 and bq76PL102 is not working for all devices. If one node is not working the whole network is considered...
    on Jan 6, 2011

  • Forum Post: Re: cant read bq78PL114 EVM parameter on SMBUS

    Jim M15252
    The DIMM is not sold separately. You may want to remove the DIMM and then power the base board. At this point double check that all voltages are looking good. Remove power. Reinsert the DIMM and apply power in the sequence shown in the attachment. If this does not work, you may need to either...
    on Jan 7, 2011

  • Forum Post: Re: Battery PACK Under Voltage Range for BQ78PL116

    Jim M15252
    Pack voltage is a summation of the cell voltages. There is no hardware to directly measure pack voltage. The above mentioned hardware limit indirectly applies. Assuming all cells were balanced, setting PUV to a sum eqaul to the number of cells x 2.3V would probably never happen if voltage restriction...
    on Jan 10, 2011

  • Forum Post: Re: SPROT (Fuse) Control for BQ78PL114

    Jim M15252
    In very high power applications, the FUSE (SPROT) condition can be considered a Permanent Failure condition since controllable fuses are not really used. Once this condition is reached, the bq78PL116 is latched just like a fuse. THe only way to get out of the condition is to remove the fault and send...
    on Jan 10, 2011

  • Forum Post: Re: BQ78PL114 IGRR failure

    Jim M15252
    Here is an updated description of IGR and IGRR. 3.12 Impedance Growth Rate (IGR) This condition is event-driven and not evaluated on a regular interval. The test checks for abnormal impedance increases in each cell, independent of the other cells. The following user-defined parameters...
    on Jan 14, 2011

  • Forum Post: Re: BQ78PL114 chemistry files

    Jim M15252
    Open the bqWizard 3.0.16 demo. Under File >> Load Chemistry Data. There is the listing of Chemistry Files. The listing is as of around December of 2010. Look for a similar cell type to Hyperion EX. Yes, Multi-Cell BMS Apps Engineering in Dallas, TX can assist. Lead times can be as long as five...
    on Jan 17, 2011

  • Forum Post: Re: Schematic regarding Battery Balancing using bq78PL114

    Jim M15252
    Looks good except: 1. There is no cell temperature sensing. Switch to the bq78PL116 . When you do so, you will not need to add any external temperature sensors. The bqWizard software will allow you to map all cell temperatures to the sensor inside the bq78PL116. In bqWizard, go to Utilities >>...
    on Jan 21, 2011

  • Forum Post: Re: Schematic regarding Battery Balancing using bq78PL114

    Jim M15252
    1.Pins 26 & 27 should be connected to VSS through 1.0M to reduce any possible leakage current. 2.VSS and BATT- are technically the same circuit net if you extended the circuit diagram out to the battery. However, VSS should be a low current connection from the battery to the device. BATT- is a...
    on Jan 28, 2011

  • Forum Post: Re: Unable to establish a connection between BQ78PL114EVM and BQWizard

    Jim M15252
    You mentioned that the power supply is connected to the PACK terminals. The power supply that sources current to the 10 ohm resistors that are simulating cells should be connected to BATT- and BATT+, not PACK+ and PACK-. The Powersupply and the 10 resistors simulate a battery. They should be connected...
    on Feb 1, 2011

  • Forum Post: Re: Unable to establish a connection between BQ78PL114EVM and BQWizard

    Jim M15252
    Read document SLUU330b about the Algorithm Enable Register. Plus, make sure there are no safety rules violations present that would be holding the MOSFETs off.
    on Feb 3, 2011

  • Forum Post: Re: BQ78PL114 chemistry files

    George Alter
    Jim, BMS Apps Engineering in Dallas, TX is mentioned both here and in the '114 datasheet. However I cannot find any contact information on the web for this department. Can you provide contact info? Thanks you, George
    on Feb 7, 2011
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