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  • TPS61158: LED Driver for 1Sx5P Configuration

    Resolved
    Part Number: TPS61158 Other Parts Discussed in Thread: TPS61169 Hello, Is there a recommended white LED driver configured as 1Sx5P (5x LEDs in parallel, anode and cathodes are connected together) with the following specifications? I was considering the…
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    • Answered

  • RE: TPS61158: SW node periodically halts at low PWM duty

    Resolved
    hi Tsugumi 1. From your result, it seems the peak voltage value is only 15.64V while the OVP point is 28.2V. So I do not think OVP has been triggered. 2. The TPS61158 actually enters burst mode when LED current is relatively small. I think a longer…
    • Answered

  • TPS61158: Start up delay time and shutdown delay time for PWM mode

    Resolved
    Part Number: TPS61158 Hello, I have question regarding the parameter on the datasheet. TPS61158 datasheet Figure 8 shows the timing diagram for startup and shutdown for the PWM mode, but I can't find the values for the startup delay, FB ramp and shutdown…
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  • TPS61158: TPS61158

    TI Thinks Resolved
    Part Number: TPS61158 Can I power the part with 6 Volt source on the input side of the inductor while the rest of the IC is on 3.3V source
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  • TPS61166: Dimming method of TPS61166 and TPS61158

    Resolved
    Part Number: TPS61166 Other Parts Discussed in Thread: TPS61158 Hi team, I'd like to check about dimming method for TPS61166 and TPS61158. I think that TPS61166 employs PWM dimming, and TPS61158 employs analog dimming by PWM signal. Is my understanding…
    • Resolved

  • TPS61158: Lower PWM frequency then recommended range 20k~100kHz

    TI Thinks Resolved
    Part Number: TPS61158 Hi Team, My customer wants to use 10kHz PWM frequency for dimming if possible. We are understanding our recommendation is 20k~100kHz for CTRL control though, what side effect will be expected if they use the lower frequency for CTRL…

  • TPS61158: TPS61158 No Load Issue.

    TI Thinks Resolved
    Part Number: TPS61158 Dear TI Team, This is an extension of the question linked below. In Open Load, Open Load Protection does not seem to work as shown below. I'm still having trouble, and I want to check if there is a problem with my circuit implementation…
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  • TPS61158: TPS61158 Open Load Issue

    Resolved
    Part Number: TPS61158 Dear TI Team, The TPS61158 is designed and in use. VCC: 5V Vout: 18V LED Load: 10mA In the process of producing and testing the board, Anode / Gnd is measured by the tester with no load on the output and tested. However, the chip dead…
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  • TPS61158: standard operating conditions 3.3V 20mA

    TI Thinks Resolved
    Part Number: TPS61158 Other Parts Discussed in Thread: TPS61161 Hi, My customer is using TPS61158 as a driver led for a backlight. I can't find on the TI simulator to understand if in standard conditions (3V3, 20mA, 35 ° C) there can be particular criticalities…
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  • TPS61158: Doesn't recover from shutdown

    Resolved
    Part Number: TPS61158 Hi We use the TPS61158 in PWM mode in one of our products as display backlight driver. The PWM signal is 50kHz and varies between 2...100%. In general, the device works as expected but we sometimes get returns from customers where…
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