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  • TPS92391: Inrush current when the backlight is activated.

    TI Thinks Resolved
    Part Number: TPS92391 Tool/software: Hello TI Team, When the power is turned on about 40ms it will generate a very high inrush current(~4.8A). I think it's pre-charging before the backlight is turned on. But the high current will cause system instability…

  • TPS92391: 92391 Confirm the timing relationship between PWM and EN.

    Part Number: TPS92391 Tool/software: Hi team， Please help confirm the timing relationship between 92391 PWM and EN. If PWM is output before EN, will it affect the IC?

  • TPS92391: VHEADROOM MAX value consultation

    TI Thinks Resolved
    Part Number: TPS92391 Hi team， When cold starting at low temperature (-35), a black screen appears, and the fault pin of the measured waveform is pulled low. Judging from the test voltage, it is in an overvoltage state. The customer uses the LP8866 host…
    • Answered

  • RE: TPS92391: Question of LED Output String Configuration

    Resolved
    Hi Patrick, Thank you for your help.

  • TPS92391: Some question of tps92391

    Part Number: TPS92391 Hi team, 1. Is it set based on the lowest voltage of the LED light string? 2. The FB resistor has two modes: 2-resistor voltage division and 3-resistance voltage division. Based on previous experience, it is recommended to use 3-resistance…

  • LP8866-Q1: LP8866-Q1 P2P TPS92391?

    Part Number: LP8866-Q1 Other Parts Discussed in Thread: TPS92391 , Hi team, Can LP8866-Q1 and TPS92391 be used in P2P? Need to modify software and hardware? Thanks Xiaoxiang

  • TPS92391: Driving different LED strings per each channel

    Part Number: TPS92391 Hello, I know TPS92391 is a backlight boost LED driver, but I need some special configuration with 6 different LED strings which have different number of LEDs. For example, CH2 will have 4 LEDs in series, and Vf will be 9.6V. CH1…
    • Answered

  • TPS92391: Over Current fault always on issue

    Resolved
    Part Number: TPS92391 We are having no luck with turning our LED ring on with the TPS92391 driver chip. The over current fault is always on. Please see attached schematic.
    • Resolved

  • TPS92391: TPS92391RHBR schematic diagram check

    Part Number: TPS92391 Dears, Could check schematic diagram for TPS92391RHBR design? thanks. Feature as below: vin=12v Iout=73mA single channel VOUT=21V
    • Answered

  • TPS92391: Power Line FET control pin specifications

    Resolved
    Part Number: TPS92391 Hello, Can you please provide more detailed specification of the power line FET driver circuit within the TPS92391, specifically the SD (pin 21) output structure? The datasheet specifies that the SD pin is an open drain output and…
    • Resolved

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