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  • TPS61193: TPS61193

    TI Thinks Resolved
    Part Number: TPS61193 Hi, I have a question on TPS61193 PWM dimming input. The datasheet specify the PWM Brightness control frequency range is 100Hz~20KHz. If the input PWM frequency is 130KHz, what would happen? Can the TPS61193 still work? I ever tested…

  • TPS61193: About output current

    TI Thinks Resolved
    Part Number: TPS61193 Hi, The formula for calculating the current limit is described as follows. RISET = 2342 / (IOUT ⁻ 2.5) Is "IOUT" the total current of ILED (ILEDx3)? Our customer will use 15mA per channel. Iout = 15 × 3 = 45mA RISET ≒ …
    • Answered

  • TPS61193-Q1: Required AC characteristics of Internal switching MOSFET to calculate Maximum Power Dissipation & Boost Output Voltage Formula Clarification.

    Resolved
    Part Number: TPS61193-Q1 Other Parts Discussed in Thread: TPS61193 , LP8867-Q1 We are using the TI TPS61193 LED DRIVER in our design (In Boost Mode), hence we have some below queries & so please clarify it immediately. 1) To calculate Maximum Power…
    • Resolved
    • Answered

  • TPS61193: TPS61193: Startup flickering of LCD backlight

    Resolved
    Part Number: TPS61193 Hi I am using the TPS61193 to drive the backlight of a LCD display. The backlight is flickering during startup as can be seen on the screenshots of output voltage of the TPS61193 to the LEDs (see image) Sometimes it takes several…
    • Resolved

  • TPS61193-Q1: fault will not be triggered when SW pin exceeds max current

    TI Thinks Resolved
    Part Number: TPS61193-Q1 Other Parts Discussed in Thread: TPS61193 Dear expert: It’s found that fault will not be triggered when SW pin exceeds max current. Since application condition where the 2A limit is exceeded continuously is not allowed, does tps61193…

  • TPS61193-Q1: output capacitor has terrible audible noise

    TI Thinks Resolved
    Part Number: TPS61193-Q1 Other Parts Discussed in Thread: TPS61193 Hi TI team, As expected, by using PWM dimming product TPS61193, we can hear terrible audible noise, I have uploaded my SCH, can you help to have a look? From my understanding, the audible…
    • Answered

  • TPS61193: TPS61193 Open LED Protection

    Resolved
    Part Number: TPS61193 Hi team, Could you please help to check the time between 61193 detected Open/short LED fault and Fault Pin pull down?
    • Resolved
    • Answered

  • TPS61193: Display backlight brightness is decreasing over time

    Resolved
    Part Number: TPS61193 Hello, i have a problem with my custom pcb, using the TPS61193 for a backlight of a display. Powering the PCB, the controller starts PWM and enables the TPS-Driver. Then my Display starts to show me a picture with a good brightness…
    • Resolved
    • Answered

  • TPS61193: LDO, digital inputs

    Resolved
    Part Number: TPS61193 The datasheet says that, "The VDDIO/EN pin provides the supply voltage for digital IOs (PWM and SYNC inputs)and at the same time enables the device." I'm not quite sure what that means. Does it mean that there are an…
    • Resolved

  • TPS61193: LED driver for TFT

    TI Thinks Resolved
    Part Number: TPS61193 Hi, I'm looking for a LED driver to drive the backlight of a TFT display. At the moment my reference pn is MAX16814BEUP +, I would like to know if there is an alternative TI. Here are the features: - I have to drive 3 channels…

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