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Frequent questions

  • [FAQ] What are the most common PoE PSE System Software Solutions?

    What are the most common PoE PSE System Software Solutions? And what components do I need to support them?

  • [FAQ] BQ25890: Why does the PMID pin voltage dip during VBUS removal, transient to the OTG (on-the go-boost) mode for the BQ25890, BQ25890H, BQ25892, BQ25895, BQ25895M, BQ25896, BQ25898, BQ25898D, BQ24190, BQ24192, BQ24195, BQ24195L, BQ24196, BQ24295

    Part Number: BQ25890 Due to the OTG boost mode’s startup delay, PMID voltage may dip for a short period after VBUS is removed. Check the charger’s corresponding datasheet for the specific timing of the device being used. In general, it is in the range…

  • [FAQ] BQ25601: [FAQ] Why does PMID pin voltage dip during VBUS removal transient to OTG (on-the-go boost) mode for the BQ25618, BQ25618E, BQ25619, BQ25611D, BQ25616, BQ25600, BQ25600D, BQ25601, BQ25601D, BQ25606?

    Part Number: BQ25601 Due to the OTG boost mode’s startup delay, PMID voltage may dip for a short period after VBUS is removed. Check the charger’s corresponding datasheet for the specific timing of the device being used. In general, it is in the range…

  • [FAQ] BQ25890: Could TI provide the sample Linux driver for the BQ25890, BQ25890H, BQ25892, BQ25895, BQ25895M, BQ25896, BQ25898, BQ25898D, BQ24190, BQ24192, BQ24193, BQ24195, BQ24195L, BQ24196, BQ24295, BQ24296M, BQ24259?

    Part Number: BQ25890 Other Parts Discussed in Thread: BQ25898 , BQ25896 , BQ25895 , BQ25898D , BQ25892 , , , BQ25895M , BQ24195L , BQ24196 , BQ24195 , BQ24193 , BQ24192 , BQ24190 , BQ24296M , BQ24295 , BQ24259 Linux driver for the BQ25890, BQ25890H…

  • [FAQ] BQ25601: [FAQ] Could TI provide the sample Linux driver for the BQ25618, BQ25618E, BQ25619, BQ25611D, BQ25600, BQ25600D, BQ25601, BQ25601D?

    Part Number: BQ25601 Other Parts Discussed in Thread: BQ25619 , BQ25600 , , , BQ25600D , BQ25618E , BQ25618 , BQ25611D The sample Linux driver for BQ25618, BQ25618E, BQ25619, BQ25611D, BQ25600, BQ25600D, BQ25601, BQ25601D is located here: www.ti.com…

  • [FAQ] TPS2121: How do I Achieve a Seamless Power Switchover using TI’s Power Mux Devices

    Part Number: TPS2121 Other Parts Discussed in Thread: TPS2116 , Redundant power is critical in systems that require uninterrupted sources of power. To complement this redundancy, a power selection and transition between multiple sources needs to be…

  • [FAQ] BQ25792: Why does the SYS output of the evaluation module (EVM) collapse when no battery (or battery simulator) is attached to the BAT pins?

    Part Number: BQ25792 The EVMs are configured to simulate working with a battery with a thermistor. When the battery is removed but the simulated thermistor is still present, the charger continues to change the BAT as a battery is present. The charger…

  • [FAQ] BQ25792: What is the expected output voltage and how much dc resistive load can the SDRV pin provide?

    Part Number: BQ25792 The BQ25792 SDRV pin output rises to approximately 5V above the voltage sensed at the BATP pin. The SDRV pin charge pump output is designed only for charging a capacitive load, like at the gate of a FET. It cannot drive a dc resistive…

  • [FAQ] BQ25792: What voltage does this narrow voltage DC (NVDC) charger regulate the SYS output to if no battery is attached and charge is disabled?

    Part Number: BQ25792 With charge disabled and no battery attached, BQ25792 regulates SYS to the MINSYS (SYSMIN) voltage set by the BQ25792 Minimal System Voltage Register REG00[5:0].

  • [FAQ] TPS544C25: How to set Vout using Pin strap and using PMBUS

    Part Number: TPS544C25 Other Parts Discussed in Thread: TPS544B25 This FAQ discusses how to set the Vout for TPS544C25, TPS544B25 Using Feedback Divider Network without PMBUS If you want the converter to start to a default 0.84V as an example, here…

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