Frequent Questions

  • [FAQ] AM62P: McASP on MCU-R5F Core (mcu-r5fss0-0) — AM62Px MCU+ SDK

    Part Number: AM62P Other Parts Discussed in Thread: SYSCONFIG The AM62P MCU+ SDK only provides McASP examples for the wkup-r5fss0-0 core. How do I port McASP to run on the mcu-r5fss0-0 core with DMA support on the AM62Px platform?

  • [FAQ] MSPM0-SDK: [FAQ] MSPM0C1104/MSPM0G3507: Software Uart example

    Part Number: MSPM0-SDK Other Parts Discussed in Thread: MSPM0C1104 , MSPM0G3507 Small-package MSPM0 devices often run into hardware UART count limitations due to pin constraints. When you need more serial interfaces than the on-chip UART modules can…

  • [FAQ] AM625: eMMC Boot with only R5 SPL (tiboot3.bin) on boot0 and tispl.bin/u-boot.img on UDA

    Part Number: AM625 Overview This guide documents how to configure AM62X to boot from eMMC when only tiboot3.bin fits on boot0 , and tispl.bin / u-boot.img must be loaded from a FAT32/ext4 filesystem on the UDA. This differs from the standard SDK layout…

  • [FAQ] LMx518x: What are the different products in LMx518x family and how they differ?

    Part Number: LM5180-Q1 Other Parts Discussed in Thread: LM25180 , LM5180 , LM25185 , LM5185 , LM5181 , LM25183 , LM25184 If you are going for PSR Flyback topology for power requirement of 1W to 50W, you can take these LMx518x devices into your design…

  • [FAQ] LMx518x: What are design considerations for Flyback transformer?

    Flyback transformers play a crucial role in Flyback topology design, Flyback topology requires coupled inductors with proper turns ratio, better magnetizing inductance and minimum leakage. Turns Ratio: Turns ratio must be selected considering recommended…

  • [FAQ] LMx518x: What is the maximum output power deliverable?

    Other Parts Discussed in Thread: LM5181 , LM25180 For converter parts (LM5181/0, LM25180/3/4), to calculate maximum output power, you can use these formulae: POWER DELIVERY CURVES Pout vs Vin for all variants on same graph at different turns ratio…

  • [FAQ] LMx518x: How to select Snubber circuits?

    Snubber circuits are designed to suppress voltage spikes, limit the rate of voltage and current changes, and protect switching devices from damage. It is recommended to use snubber circuits across SW and Vin, and across Flyback diode. Refer this technical…

  • [FAQ] LMx518x: Why is my output voltage not as expected/calculated?

    Part Number: LM5180-Q1 Flyback transformer To operate as flyback converter, transformer polarity has to be as expected, reversing polarity makes the converter work as forward converter which cannot provide expected output when loaded. Also, check…

  • [FAQ] LMx518x: How to select RSET, RFB, RTC?

    RSET resistor is used to set the internal 1.21-V reference to the input of the error amplifier for internal closed loop. RSET is recommended to keep at 12.1 Kohm to maintain 100uA current in RFB and RSET resistors, and vary RFB to obtain required output…

  • [FAQ] LMx518x: How to select Flyback Diode?

    Select a Schottky diode for this application to account for inevitable diode voltage overshoot and ringing related to the resonance of transformer leakage inductance and diode parasitic capacitance. Connect an appropriate RC snubber circuit (for example…

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