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  • UCD3138: Definition of IOMUX register - FFF7F030

    TI Thinks Resolved
    Part Number: UCD3138 UCD3138 experts, If you look at the TRM for UCD3138, page 355 in Rev E describes the register bit fields for IOMUX. The section starts with Figure 9-5 which matches up with the following 6 tables. But then there's Table 9-11, which…

  • UCD3138: UCD3138: PWM waveform cannot be expanded according to normal feedback logic

    Part Number: UCD3138 Tool/software: One of our mass-produced products using the UCD3138 experienced a problem with the PWM waveform not expanding properly during customer application, resulting in abnormal output voltage. After receiving the module in…
    • Answered

  • UCD3138: Ramp Delay Complete pulse timing confirmation

    Resolved
    Part Number: UCD3138 Hi Team, Posting on behalf of our customer. As shown in the figure, I want to confirm whether the Ramp Delay Complete pulse is generated before the master ramp starts or after the master ramp completes. Please provide the hardware…
    • Resolved
    • Answered

  • UCD3138: 2 UCD3138 on the same PMBUS

    Resolved
    Part Number: UCD3138 Tool/software: HI. My hardware designer has put 2 UCD3138 on the same PMBUS. I am in charge of the firmware design. According to docs, in Romcode, @ for PMBUS is set at <0xB> How can I flash the UCD when they are empty…
    • Resolved
    • Answered

  • UCD3138: Multiple interleaved converters and control scheme. Is it possible with multiple UCD3138?

    Resolved
    Part Number: UCD3138 Other Parts Discussed in Thread: UCD7138 , Tool/software: Hi, Just have seen this topic and I have some questions: UCD3138: Multiple Interleaved Dual Active Bridge Converters with Phase Shedding I need to control four different…
    • Resolved

  • UCD3138: Looking solution for Power Shelf/ Management Controller (PSC/PMC)

    TI Thinks Resolved
    Part Number: UCD3138 Hi TI Team, I am planning to design a Power Shelf/Management Controller . While I do not have detailed specifications at this stage, could you please share a few design references for PSC/PMC controllers? This will help me better…

  • UCD3138: Need programmable DAC power controller product selection assistance

    Part Number: UCD3138 Note: This is a resubmittal of my information request (case #CS3304970) to the E2E forum. ------------------------------------------------------------------------------------------------------ Hello, I have an RF amplifier application…

  • UCD3138: UCD3138 PFC OK abnormal

    TI Thinks Resolved
    Part Number: UCD3138 Tool/software: Hi E2E, Please help to check the following question, thanks, Normal operation (upper left picture): When MCU_VDD 3.3V is established, it is judged that V_Bulk > 390V, PFC_OK transitions (from HI to LO), and the…
    • Answered

  • UCD3138064: UCD3138 communication interruption

    Resolved
    Part Number: UCD3138064 Other Parts Discussed in Thread: UCD3138 , , USB-TO-GPIO2 I used ucd3138 as the main control chip for the bridgeless totem-pole PFC power supply. After manually running the code using the Device GUI, the bridgeless totem-pole PFC…
    • Resolved

  • UCD3138: question about bridgeless totem pole pfc with ucd3138

    TI Thinks Resolved
    Part Number: UCD3138 Other Parts Discussed in Thread: , PMP20873 Tool/software: 1. May I ask if there are any relevant documents about the code that I can learn? 2.In the code, is there an implementation of the documented content? How to reduce current…

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