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Frequent questions

  • [FAQ] BQ34Z100-G1: How fast does the gauge update current and voltage registers?

    Part Number: BQ34Z100-G1 The register update frequency is based on power mode. In Normal mode the gauge should update these registers every second. For sleep mode the update time can be up to 20 seconds. However, the gauge is accumulating current totals…

  • [FAQ] BQ34Z100-G1: How to Calibrate Gauge at High Voltage

    Part Number: BQ34Z100-G1 Other Parts Discussed in Thread: BQ34Z100 , BQSTUDIO , BQ34Z100EVM The BQ34z100 supports charge and discharge currents up to 32 A, pack capacities up to 29 Ah, and pack voltages up to 60 V without significant modifications. By default…

  • [FAQ] BQ34Z100-G1: Current/Capacity Scaling

    Part Number: BQ34Z100-G1 Other Parts Discussed in Thread: BQSTUDIO The gauge can support charge and discharge currents up to 32 767 mA if you want to scale the current with a desired scale, the scale must between 1 to 10 for optimal accuracy. The SCALED…

  • [FAQ] BQ34Z100-G1: Design Energy above Maximum

    Part Number: BQ34Z100-G1 The maximum value for the Design Energy parameter is 32767 and in many high voltage battery configurations this value will be exceeded. In this case the parameter Design Energy Scale needs to be changed accordingly. Design Energy…

  • [FAQ] BQ34Z100-G1: Voltage Scaling for Odd Number Cell Counts

    Part Number: BQ34Z100-G1 Other Parts Discussed in Thread: BQ34Z100 , BQSTUDIO The BQ34z100 supports up to charge and discharge currents up to 32 A, pack capacities up to 29 Ah, and pack voltages up to 65 V without modifications. Using external and internal…

  • [FAQ] TPS3422: How to reset a battery powered device by removing USB power

    Part Number: TPS3422 Hello, Instead of a reset push button, is there a way I can use the TPS3422 to reset my battery powered device by removing USB power for <10 seconds then reapplying power? I would also like for no reset signal to be sent when the…

  • [FAQ] How Many FETs Can Gauges With Integrated Protection Drive?

    Other Parts Discussed in Thread: BQ28Z610 In many high power and high cell count battery applications, the need arises to reduce the RDS on of the load switch FETs to reduce conduction losses. The two main ways to achieve this are by adding more FETs in…

  • [FAQ] Low side and Half Bridge Gate Driver Schematic Review Template

    A list of schematic review templates for many of our devices are available below! These templates are meant to be used in conjunction with our datasheets to help designers review their schematics. UCC27516 and UCC27517 Schematic Review Template UCC27511…

  • [FAQ] LM5066: Differences between LM5066 and LM5066I

    Part Number: LM5066 How do LM5066 and LM5066I differ?

  • [FAQ] BQ24072T: What are the differences between the BQ24072T and the BQ24072?

    Part Number: BQ24072T Other Parts Discussed in Thread: BQ24072 , BQ24075 , BQ24075T , , BQ24079T , BQ24079 Hi, Would you be able to share the differences between the BQ24072T and the BQ24072? Do these changes also apply to the BQ24075, BQ24075T, BQ24079 and…

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