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  • TPS923653: TPS923653 Buck-Boost Mode for Battery Charging Application?

    Resolved
    Part Number: TPS923653 Other Parts Discussed in Thread: BQ24610 Hi, I am currently evaluating the TPS923653 for a non-standard application and wanted to clarify whether the buck-boost mode is suitable for battery charging. I can see how the device…
    • Resolved

  • TPS923653: TPS923653

    TI Thinks Resolved
    Part Number: TPS923653 Tool/software: I want to use the TPS923653 in analog dimming mode. With a PWM frequency of 1kHz on ADIM/HD I should be able to have a resolution of 8-bits. However, when I enable the device ("H" on the EN/PWM pin) and then start…

  • TPS923653: LEDs glowing in OFF condition

    TI Thinks Resolved
    Part Number: TPS923653 Even if the TPS923653 ADIM/HD and EN/PWM pins are both low, the device is in the OFF mode and the Boost is not running. There is still a direct path through the inductor - Schottky diode - Rsense to the LEDs which could cause the…
    • Answered

  • TPS923653: TPS923653 Excel calculator - is new version available?

    Resolved
    Part Number: TPS923653 Tool/software: Hi TI, Thank you for updating official datasheet. Is a new version of TPS923653 Excel calculator available or V1 p2 is still the latest one? The reason why I ask is because version 1p2 does not calculate R…
    • Resolved

  • TPS923653: Design review and troubleshooting request

    Part Number: TPS923653 Other Parts Discussed in Thread: TPS922054 , , TPS923655 Tool/software: Hi everyone, I'm using the TPS923653DRRR LED driver in my circuit, but I'm currently facing an issue where the LEDs are not turning on. Application details…
    • Answered

  • TPS923653: TPS923653DYYR Excessive output current when the supply voltage drops

    Resolved
    Part Number: TPS923653 Tool/software: Hello, In our Product the TPS923653DYYR is used as backlight driver. At our typical working voltage of 24V, the driver adjusts the LED current (roughly) to the set 60mA. When the input voltage drops, the regulator…
    • Resolved

  • TPS923653: Issues with TPS923653 LED Driver: Audible Noise and Excessive Ringing with PWM Dimming

    Part Number: TPS923653 Tool/software: Dear Texas Instruments Support Team, I am currently working on a project that uses the TPS923653 LED driver as a boost converter to power an LED panel. The circuit works well when the EN/PWM and ADIM pins are both…

  • TPS923653: PWM thresholds for hybrid dimming not working as expected

    Part Number: TPS923653 Tool/software: Hi TI Team, We are using the TPS923653 for LED Backlight control. We are using the Hybrid dimming mode where ADIM is low and PWM/EN pin has a 10kHz PWM signal on it. There are two oddities we are encountering: …

  • TPS923653: Issues with VCC Voltage Dropping on TPS923653 When Using MCU for Dimming Control

    Part Number: TPS923653 Tool/software: Hello everyone, I have previously used the TPS923653 to drive an LED panel without any dimming capabilities. This time, I wanted to use it with an MCU (ATTINY806) to control the dimming via a PWM signal along with…

  • TPS923653: CC/CV backup capacitor charger

    Part Number: TPS923653 Tool/software: Hi team I want to use a TPS923653 to charge a 1000uF 50V capacitor as an energy source for emergency shutdown of a customer application. Input voltage can be between 18V and 45V, but it won't change during operation…

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