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LP8869C-Q1: Schematic and Layout review

Vinyas Shetty
Prodigy 50 points
Part Number: LP8869C-Q1


Tool/software:

Texas_Instruments_LP8869CQPWPRQ1.pptx

TFT_BACKLIGHT_DRIVER_Color.pdf

  • 0
    TI__Mastermind 27956 points

    Hi HaitaoVinyas

    Our expert will reply to you early next week. Thanks for waiting.

    Best regards.

  • 0
    TI__Expert 4381 points

    Hi Vinyas,

    1. We need the LED string specs and the input voltage range to check the feasibility of the FB divider design and diode/inductor selection.

    2. A high frequency output capacitor should be added to the output. (100nF, for example). For layout design, minimize the SW(pin17) -> Diode -> High frequency cap -> GND(pin18).

    Best regards,

    Suchen