Frequent Questions

  • [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] TDA4VL-Q1: POK Untrimmed Bandgap Configuration Issue

    Part Number: TDA4VL-Q1 POK (Power OK) undervoltage detection fails during software diagnostic testing in the bootloader, causing boot failures in approximately 1-3% of devices. The POK diagnostic module fails to detect undervoltage events even when…

  • [FAQ] PRU Arbitration Delay

    I am writing a PRU application for a PRU-ICSS device (AM261x, AM263Px, AM263x, AM335x, AM437x, AM57x)**, PRUSS device (AM62x), or a PRU_ICSSG device (AM24x, AM64x, AM65x). Arbitration delay can add additional clock cycles to a PRU read or write command…

  • [FAQ] PRU Read & Write Latencies

    I am writing a PRU application for a PRU-ICSS device (AM261x, AM263Px, AM263x, AM335x, AM437x, AM57x), PRUSS device (AM62x), or a PRU_ICSSG device (AM24x, AM64x, AM65x). I want to calculate how many clock cycles a read or a write will take. How do I do…

  • [FAQ] AM62A7: Early MCU_I2C and MCU_UART response

    Part Number: AM62A7 Other Parts Discussed in Thread: SK-AM62A-LP Can you let me know the steps I can use to reduce the MCU_I2C & MCU_UART response time using MCU+SDK/FreeRTOS SDK and the method to measure this time?

  • [FAQ] AM6442: MPU ARMv7 configurations for Serial OSPI/QSPI Flash

    Part Number: AM6442 The MPU ARMv7 flash region must be configured with appropriate memory attributes and access permissions to enable flash write operations. Incorrect configurations such as read-only permissions, misaligned region boundaries, or improper…

  • [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

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