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  • BQ40Z80: bq40z80 FCC issue

    Part Number: BQ40Z80 hi: I ran into a problem while using the BQ40z80. After completing the battery's Golden Learning, I did a full-charge discharge accuracy test and found that the accuracy was off at a 0.5C rate. Analyzing the log data further, I…

  • BQ40Z80: BMS BQ40Z80 Design review

    Part Number: BQ40Z80 Hello TI team, I am designing a BQ40Z80-based pack protection board for a 6S pack (25.2 V max) with a continuous load of 60 A (80 A peak). The design is based on the BQ40Z80EVM schematic (datasheet Figure 7-1) and BQ40Z80 datasheet…

  • BQ40Z80: BQ40Z80 - Random cell connection support

    TI Thinks Resolved
    Part Number: BQ40Z80 Hello Sir: We want to know does BQ40Z80 has random cell connection support? Or do you have some guide line on it? Please kindly provide your recommendations for us. Thank you!

  • BQ40Z80: SMBus issue for BQ40Z80

    Part Number: BQ40Z80 Hi, We use the BQ40Z80 in our design and the SMBus waveform has the unable to fully pull down and burrs issue, the waveform refer to below, we have the 3.3V push up and the push up resistor is 3.3Kohm. the Series resistor is…
    • Answered

  • BQ40Z80: BQ40Z80 Srec file required

    Resolved
    Part Number: BQ40Z80 Hi, we have developed Bq40z80 hardware pcb board. we need Srec file for testing. we do not have EVM board. regards, Sg. Rajamane Systems. Begaluru.
    • Resolved

  • BQ40Z80: BQ40Z80: AOLD triggering and clearing before recovery time

    Part Number: BQ40Z80 Other Parts Discussed in Thread: BQSTUDIO Hello, I'm trying to test the AOLD protection feature on the BQ40Z80. I've set the threshold to 0xF0 with RSNS = 0 which equates to a threshold of -8.3 mV and a delay of 31 ms. With my current…

  • BQ40Z80: BQ40Z80 - Learn Cycle Failing

    TI Thinks Resolved
    Part Number: BQ40Z80 Other Parts Discussed in Thread: GPCCHEM All, I have designed a 6S pack that uses the BQ40Z80 BMU. The cells are GRP5530048 by Grepow. I am following the SLUA848 application note on how to complete a learn cycle so I can create…

  • BQ40Z80: BQ40Z80 -BMS to intermittently shut down

    Part Number: BQ40Z80 Hi ti team, The robot battery BMS is implemented based on the BQ40Z80 for a 6S NMC lithium battery pack. The robot supports a sleep mode with sleep current ranging approximately from 6.5 mA to 10 mA. Current issue: Occasionally…

  • BQ40Z80: BQ40Z80 design hardware Fuse burning

    Part Number: BQ40Z80 Hello, please find the attached Schematc circuit diagram and gerber file. RSB-6.2 V0-SCH.pdf RSB-6.2 V0.zip please check and confirm schematic design is ok or not. we are facing fuse blow of in this schematic design. Regards…

  • BQ40Z80: BQ40Z80 Current Sampling Rate Optimization Inquiry

    Part Number: BQ40Z80 Other Parts Discussed in Thread: BQ34Z100 We are currently using the BQ40Z80 battery management IC. We aim to increase the current sampling and reporting frequency. The current specification is one sample every 250 milliseconds, with…

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