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  • TPS923650: TPS923650 for low-current backlight

    Resolved
    Part Number: TPS923650 Other Parts Discussed in Thread: TPS923652 Hello, I would like to ask for clarification about some of the TPS923650 characteristics. I am looking for a buck-boost converter supplied by about 24V to supply an LCD backlight of 20mA…
    • Resolved

  • TPS923650: Can't get TPS923650 boost converter to work properly

    Part Number: TPS923650 Hello I've built this boost converter with the TPS92365D1: Input voltage is meant to be 13V-26V, output voltage 29V, 350 mA. However, I cannot get the circuit to work properly. The operation is unstable, sometimes delivering…

  • TPS923650: TPS923650 BOOST CONVERTER IC FAILURE ISSUE

    Part Number: TPS923650 Tool/software: I am using the Boost converter IC (Part No: TPS923650D1DRLR ) for a DC-DC LED Driver application, with the following specifications: Sr. No. Parameter Value 1 Input Voltage …

  • TPS923650: Clarification on COMP Pin Resistor and DIM Pin Behavior in TPS923650

    Part Number: TPS923650 Tool/software: 1. Is it mandatory to add a resistance of very high value typically 10 mega ohms in parallel with the COMP pin capacitor, which I have seen in LED-39? 2. TPS923650 datasheet says that there is a delay in application…

  • TPS923650: Capacitor selection equation missing

    Part Number: TPS923650 Greetings, I'm looking at using the TPS923650 for a backlight application and it seems the Input Capacitor Selection equation is missing (in sections 8.2.1.2.2 and 8.2.2.2.2). Even the text refers to ESRin and KDR which would…
    • Answered

  • TPS923650: Regarding current control function on buck-boost condition

    Resolved
    Part Number: TPS923650 Hi team, We are considering TPS923650 for an LED constant-current application (ILED = 140 mA). The assumed input voltage is 9 V, while the expected output voltage (LED Vf + sense resistor) is approximately 8.3 V to 10.1 V, meaning…
    • Resolved
    • Answered

  • TPS923650: Csense purpose

    Resolved
    Part Number: TPS923650 Hello team, I design a LED driver based on buck-boost topology with TPS923650D1. During debugging I found out that when Vled > 11V, driver stops regulate current, current increases up to 350mA while regulated current should…
    • Resolved

  • TPS923650: Inductor Calculation for Buck Converter

    Part Number: TPS923650 Dear technical support team, Please tell me how to calculate the inductance value when using the TPS923650 in a buck converter . I calculated using the formula in the datasheet, but it does not come out to 35 µH, and the calculation…

  • TPS923650: Instability Under All the Dimming Range - Boosting Mode.

    TI Thinks Resolved
    Part Number: TPS923650 Hello E2E Experts, I have the following circuit: Layout as it is in the Datasheet. Back of PCB is a full GND plane. 2 layers PCB. Issue is very similar to the following post: https://e2e.ti.com/support/power-management…

  • TPS923650: Dimming Issue

    Part Number: TPS923650 Tool/software: Hi I have 3 questions regarding the TPS923650D2. It is being used in Boost mode to drive a string of LEDs and this is working fine. 1) Can the VCC pin (5v) be used in a resistor divider (resistor divider between…

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