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Frequent questions

  • [FAQ] BQ25883: FAQ BQ2588X VSYS Soft Start

    Part Number: BQ25883 The BQ25883 and other devices in the family have a Soft Start Feature on Vsys output. This can be seen in datasheet fig77 that Vsys has a slow ramps-up. The Soft-Start feature at power up is noted in par 8.3.3.4. Slow rate of…

  • [FAQ] BQ25171-Q1: BQ2517X FAQ Home Page

    Part Number: BQ25171-Q1 Other Parts Discussed in Thread: BQ25172 , BQ25173-Q1 , BQ25173 , , BQ25170 This home page is for common questions in relation to the BQ25171-Q1, BQ25173-Q1, BQ25170, BQ25172, BQ25173

  • [FAQ] TPS3842: Power rail monitoring and sequencing

    Part Number: TPS3842 I need to monitor and sequence 3 power supply rails. The main bus voltage in my design is 12V, followed by LDOs for 5V, 3.3V, and 1.8V. Can please provide the simplest solution? Also board size is very limited so I need smallest…

  • [FAQ] BQ25785EVM: BQ25785 BQZ FILE

    Part Number: BQ25785EVM Other Parts Discussed in Thread: BQ25785 , BQSTUDIO Please see attached for the BQ25785 BQZ file to be used with BQSTUDIO software. To use the GUI you will need to download Battery management studio software from TI.com, then…

  • [FAQ] TPS23881B: Power-On Sequence

    Part Number: TPS23881B Other Parts Discussed in Thread: TPS23861 , TPS23881 , TPS23882 TPS23881B is an IEEE802.3bt compliant, 8-channel power sourcing equipment (PSE) that injects power onto CAT5 Ethernet cables. When using this device in any wired…

  • [FAQ] TPS3842: TPS3842 CTS function

    Part Number: TPS3842 What is the function of CTS pin in TPS3842? Can you please explain how to use it?

  • [FAQ] TPS3842: Overvoltage monitoring of a noisy power supply

    Part Number: TPS3842 Hello, I have a noisy power supply and need to monitor for OV conditions. Size and noise immunity are very important. Can you please recommend a solution? Thank you.

  • [FAQ] TPS3842: 24V undervoltage detector

    Part Number: TPS3842 Hello, I am looking for a very small solution to monitor my 24V rail for undervoltage conditions. What is your best recommendations? Thank you.

  • [FAQ] TPS546E25: How to Change TPS546E25 PMB_ADDR (0xD3) on a Secondary Device in a 2-Phase Configuration

    Part Number: TPS546E25 How to Change TPS546E25 PMB_ADDR (0xD3) on a Secondary Device in a 2-Phase Configuration There are multiple devices on the serial bus and need to change the address from the default pin strap address to avoid conflict

  • [FAQ] TPS546E25: When I write to VOUT_SCALE_LOOP (0x29) on TPS546E25 but the device NACKs and does not change value.

    Part Number: TPS546E25 When I write to VOUT_SCALE_LOOP (0x29) on TPS546E25 but the device NACKs and does not change value.

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