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Showing 30 results View by: Thread Post Sort by
  • TPS61176: Low Output Voltage & Current Issues

    Felix Taylor
    Felix Taylor
    Part Number: TPS61176 Tool/software: I'm designing a rechargeable lamp using the TPS61176 to drive 4 LED strings (4 LEDs per string). Despite seemingly correct component values, I'm getting lower than expected voltage and current. Configuration…
    • 4 months ago
    • Power management
    • Power management forum
  • Answered
  • TPS61176: Add a capacitor to the IFB pin

    user5054474
    user5054474
    Resolved
    Part Number: TPS61176 Hi, I want to add a capacitor to each IFB pin of the TPS61176 because flickering occurs in the immunity test. Please let me know if there is a recommended range for capacitor capacity. Best regards,
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: TPS61176: FRA measurement

    Patrick Yao
    Patrick Yao
    Resolved
    Hi Based on loop measurement results, I think the margin is fine. But bench test is also needed under your working conditions to double confirm if any unstable issue will be found. BR Patrick
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: TPS61176: Always PWM Dimming mode

    user5054474
    user5054474
    Resolved
    Hi, Thank you. There seems to be no problem with TPS61176. I will verify the EVM in detail after I get it. Best regards,
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS61176: Boost and output turns off when PWM duty is greater than ~60%

    3fti
    3fti
    Resolved
    Part Number: TPS61176 In the previous revision of our design we did not have the protection (PMOS) circuit and the MODE/FAULT pin was simply pulled to GND through a 1.3M resistor. In that original version the part behaved as expected. The PWM signal…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS61176: Output missing.

    Kengo.Y
    Kengo.Y
    Resolved
    Part Number: TPS61176 Hi team, In mode4, if a 120Hz PWM signal is an input, the output will be lost sometimes. Blue : IFBx Green : Input PWM signal This phenomenon only occurs in mode4. It also occurs when Duty is 10% to 0.5%. It does not occur below 0.5%…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS61176: The combined String.

    Kengo.Y
    Kengo.Y
    Resolved
    Part Number: TPS61176 Hi team, What would happen if all IFB were combined? The datasheet says that there are up to three. Sincerely. Kengo.
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS61176: PWM Duty at 100Hz.

    Kengo.Y
    Kengo.Y
    Resolved
    Part Number: TPS61176 Hi team, Is it possible to set a duty 1% at 100Hz? If it was inputting a low-frequency signal(100Hz), could you tell me if you have anything to worry about? Sincerely. Kengo.
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • TPS61176: solution select

    Denny Huang
    Denny Huang
    Part Number: TPS61176 Other Parts Discussed in Thread: LP8553 , LP8556 Dear team The customer would like to select the solution of LED driver. The spec as below Vin:2.8V~4.5V ILED=40mA/per channel VLED=30V/4ch Could TPS61176 support this spec? Many th…
    • over 3 years ago
    • Power management
    • Power management forum
  • TPS61176: Current matching of TPS61176

    Feng bin Su
    Feng bin Su
    TI Thinks Resolved
    Part Number: TPS61176 Other Parts Discussed in Thread: TPS61177A , LP8556 , LM36274 Hi team, Do we have a higher Balance rate solution for this multi-channel BL driver IC? The current typical value of TPS61176 is 1.3%. What is the maximum value of it? Thanks…
    • over 5 years ago
    • Power management
    • Power management forum
>

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