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  • TPS92641: how to know the voltage of HG or LG , Vgs for external NMOS in TPS92641?

    Part Number: TPS92641 Dear Sir, Just like the question, it seem no these parameters in the datasheet of TPS92641, the real Vgs for NMOS in HG and LG pin. Best regards. David

  • TPS92641: TPS92641 Schematic review & UDIM

    Part Number: TPS92641 Other Parts Discussed in Thread: , TPS92640 Hi, I am trying operate LEDS through TPS92641EVM with below spec Vin= 52V Iin = 7A VLed = 49V ILed = 6A Ripple Current: 200mA How to calculate the UDim frequency range for…
    • Answered

  • TPS92641: SDIM to output current delay

    Resolved
    Part Number: TPS92641 Tool/software: Hi team, 1) I would like to know how much delay there is between PWM signal hitting the SDIM pin and current passing though the LEDs (the red arrow in diagram below, in terms of ns/us). Also, 2) what is the maximum…
    • Resolved

  • TPS92641: TIDA-080008 source file

    TI Thinks Resolved
    Part Number: TPS92641 Other Parts Discussed in Thread: TIDA-080008 Tool/software: Dears， Do you have TIDA-080008 source file, SCH and PCB, the web site have only PDF document.

  • TPS92641: Issue with Non-Linearity and Flickering in Constant Current LED Driver Using Shunt FET Control

    Part Number: TPS92641 Tool/software: I have designed CC driver controlling through Shunt Fet at 25Khz PWM frequency I am not getting proper linear out and the LEDs are also flickering at particular values like 52% intensity Vled = 27V Iout = 2.5A Vin…
    • Answered

  • TPS92641: Is it possible to use UDIM pin as an Enable pin?

    Resolved
    Part Number: TPS92641 Other Parts Discussed in Thread: TPS92640 , Tool/software: Dear TI Experts, I would like to ask whether it is possible to use the UDIM pin as an enable pin. I understand that the UDIM pin has a 3-in-1 function, including…
    • Resolved

  • TPS92641: looking for a solution for LED flash 1-4uS

    Part Number: TPS92641 Tool/software: Looking for a led flash circuit with the following demands On time 1-4uS Flash freq. 50-100Hz Possible to adjust the current level to LED 1-3A, Vf LED 1-3V Trigger signal since the flash circuit will be activated…

  • TPS92690-Q1: TPS92690 with SHUNT MOSFET,just like TPS92641

    Part Number: TPS92690-Q1 Other Parts Discussed in Thread: TPS92690 , TPS92641 Tool/software: Dear Sir, I use TPS92690 to driver a 8A/14V-16V high power LED, and VIN is 12V.. I also want this boost LED driver with SHUNT MOSFET functionality, can I…

  • TPS92641: Ripple current at 400mA

    TI Thinks Resolved
    Part Number: TPS92641 Hi team, Referring to data sheet Figure 12, it seems that a ripple of about 300mA occurs when 1A flows. Could you please confirm how much ripple there is at 400mA, pulse width 10µs, duty 1%? Regards, Taito Takemura

  • TPS92641: What is recommended TI NMOS FET for TPS92641 PWM on/off FET (Qsdim)?

    TI Thinks Resolved
    Part Number: TPS92641 Other Parts Discussed in Thread: CSD17303Q5 , CSD17573Q5B , CSD19538Q3A , CSD19538Q2 , TPS922053 Hello guys, One of my customers is considering using TPS92641 for their new products. Also they are looking for TI NMOS FET as TPS92641…

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