Search tips
Showing 9,848 results View by: Thread Post Sort by
    Answered

  • BQ27Z561-R2: Charing terminal voltage derating

    Resolved
    Part Number: BQ27Z561-R2 Hi Team, After the battery has been charged and discharged 400 times, the customer modifies the cut-off charging voltage of the charging IC, and adjusts the full charging voltage from 4.4V to 4.25V. Besides Charge Term Charging…
    • Resolved

  • RE: BQ34Z100-R2: Learning Update Status stuck at 05 in R2 device

    Jean Eddim There is no OCV_TAKEN bit in R2, it is replaced by REST bit, it is replaced with REST bit which indicates the voltage is stable enough to be used as OCV, I found the relax time after discharge is pretty short, it needs at least five hours…

  • BQ27Z561-R2: Cycle count

    TI Thinks Resolved
    Part Number: BQ27Z561-R2 Hi Team， Suppose Cycle Count Percentage is set to 90%. If the fuel gauge is turned off by pulling down the CE pin after discharging 40% in a new counting cycle, and then pulls up the CE pin, will the accumulated discharge amount…
    • Answered

  • BQ27Z561-R2: Current sense resistor value

    Resolved
    Part Number: BQ27Z561-R2 Dear all, BQ27Z561-R2 datasheet first page schematic presents that sense resistor can be between 1 mOHM to 10 mOHM. However in 9.4.1 Layout Guidelines it is stated that "The device is designed to support a 1-mΩ to 3-mΩ sense resistor…
    • Resolved

  • RE: BQ27Z561-R2: What is the recommended method for pulling pins B2 (GND) and C2 (BAT_SNS) out for routing

    Shirish - Thanks for the document. The drawings there are the exact same as the drawing in the datasheet. Unfortunately, those drawings do NOT show a "TI suggested via in pad" solution. I could no longer wait for a response and have just winged…

  • BQ27Z561-R2: BQ27Z561-R2 voltage current temperature precision

    TI Thinks Resolved
    Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: BQ27Z561 Hi The customer want to know the voltage current temperature precision of this chip. Does this chip can satisfy the following requirement： 电压检测误差 PCM Voltage Detection Error -3 / …

  • BQ78350-R2-DEVICE-FW: EC3-EC0 shows 0x7

    Part Number: BQ78350-R2-DEVICE-FW Hello Sir: We have three questions about BQ78350-R2. 1. We want to know that the EC3-EC0 bits of batterystatus display 0x07, UnknownError. What's the meaning? Why does the device have this message? 2. What conditions…
    • Answered

  • BQ34Z100-R2: the latest Ver. R2 FW and Chemistry ID

    Resolved
    Part Number: BQ34Z100-R2 Other Parts Discussed in Thread: BQSTUDIO Hi, Thank you for your support in the thread below. https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1224350/bq34z100-r2-bqstudio-battery-voltage…
    • Resolved
    • Answered

  • BQ27Z561-R2-DEVICE-FW: Reading wrong CHEM-ID

    Resolved
    Part Number: BQ27Z561-R2-DEVICE-FW Other Parts Discussed in Thread: BQ27Z561-R2 Hi team, Customer told me, that he could not read right CHEM-ID. So I went to check some samples. Here my application environment: - Battery Pack 1S - NCR18500(1900mAh) CHEM…
    • Resolved
    • Answered

  • BQ27Z561-R2: Can I use this gauge with battery cell that has integrated protection circuit?

    Resolved
    Part Number: BQ27Z561-R2 Dear all, In all BQ27Z561-R2 documentation I see that protection circuit is shown after the gauge and cell solution. Meaning that when protection trips cell and gauge stays connected and only system is disconnected from PACK terminals…
    • Resolved

Didn't find what you are looking for? Post a new question.