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  • BQ40Z80: BQ40Z80 IC Issues and Queries

    Part Number: BQ40Z80 Tool/software: Dear TI, I am experiencing some issues with the BQ40Z80 IC and would appreciate your assistance. LED Display Function : The LED display connected to the BQ40Z80 IC doesn't work after disconnecting and reconnecting…

  • BQ77207: Usage with BQ40z80

    Part Number: BQ77207 Other Parts Discussed in Thread: BQ40Z80 , Tool/software: Can this be removed when used with BQ40z80, or is it compulsory to use it with BQ40z80 ? At present it used as secondary protection whoch is connected to FUSE of BQ40z80…

  • BQ40Z80: bq40z80 Learning Cycle Issue

    Part Number: BQ40Z80 Other Parts Discussed in Thread: , GPCCHEM Tool/software: Hello everyone and Texas support, I'm working with the bq40z80 IC on my custom board and the bq40z80EVM-020 evaluation board. I'm using an Efest 18650 lithium-ion 3500mAh…
    • Answered

  • BQ40Z80: OC:Threshold

    Resolved
    Part Number: BQ40Z80 Other Parts Discussed in Thread: BQ40Z50 Tool/software: I am confused by the OC Threshold value, is it a value that should be greater than the FCC, or is it added to FCC? In this thread you say the default value should be adequate…
    • Resolved

  • BQ40Z80: BQ40Z80 not able to communicate with BQ40Z80EVM-020

    Part Number: BQ40Z80 Other Parts Discussed in Thread: BQSTUDIO , EV2400 Tool/software: Dear Sir, We have developed our custom BMS board using the BQ40Z80 chip. We are doing communication with our custom board BMS chip using the BQ40Z80-EVM20 module. In…

  • BQ40Z80: Activation Process of BQ40Z80 device

    Part Number: BQ40Z80 Tool/software: Dear Sir, We have designed a BMS with 6s configuration with each cell can charge maximum up to 4.2 V resulting overall BAT voltage to 25.2 V. Now as these BMS is assembled in a battery pack I have certain doubt related…

  • BQ40Z80: Balancing stops even when an imbalance persists

    Part Number: BQ40Z80 Tool/software: Hi, I'm using a BQ40Z80 with external balancing on a 6S, 5AH pack. Balancing circuit is as follows in the image below (note, the 51R resistors have now been replaced with 18R to try to increase balancing rate) I have…

  • BQ40Z80: Can multiple 4s2p cell packs be placed in parallel with each pack having its own BQ40Z80 BMS and then there own BQ24617 for charging

    TI Thinks Resolved
    Part Number: BQ40Z80 Other Parts Discussed in Thread: BQ24617 Tool/software: Can multiple 4s2p cell packs be placed in parallel with each pack having its own BQ40Z80 BMS and then there own BQ24617 for charging and then charging them from a common external…

  • BQ40Z80: CTOS and IN being set during charging

    Part Number: BQ40Z80 Tool/software: Hi, may I ask, what could cause the CTOS and IN flags to be set during charging? I check the TRM which suggested the CTOS was related to a charge timeout. Is the setting for this under "CTO" in the data memory? If so…

  • BQ40Z80: BQ40Z80

    Part Number: BQ40Z80 Tool/software: It is mainly applied to the management of power batteries, and some certifications are required

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