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The TI E2E™ design support forums will undergo maintenance from July 11 to July 13. If you need design support during this time, open a new support request with our customer support center.



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  • LM3644: Keep ON state

    Michael Jeong1
    Michael Jeong1
    Part Number: LM3644 Other Parts Discussed in Thread: TPS92201 Hello Expert, Is there a way to keep ON at FLASH and IR MODE regardless of TIME OUT? Isn't it possible? Best Regards, Michael
    • over 1 year ago
    • Power management
    • Power management forum
  • LM3644: On the Control of Pins

    Tonyx.wu
    Tonyx.wu
    TI Thinks Resolved
    Part Number: LM3644 Regarding the LM3644YFFR LED driver, would you like to confirm if it is our main control unit that can be disconnected from the B2/C2/C3/D2 pins, And completely using I2C for control? The specification states that the function of LM3644…
    • over 1 year ago
    • Power management
    • Power management forum
  • LM3644: Illumination LED drivers Selection

    Anna
    Anna
    Part Number: LM3644 Other Parts Discussed in Thread: TPS922055 , TPS923655 Hi Dear, The customer is looking for Illumination LED drivers, which are industrial cameras. The specific requirements are as follows“” 3A or above driving current,…
    • over 1 year ago
    • Power management
    • Power management forum
  • LM3644: can it block reverse current

    Given Ding
    Given Ding
    TI Thinks Resolved
    Part Number: LM3644 Hi team, if Vin=0, Vout is high, can LM3644 block Vout to go into VIn? from datasheet, the sync MOS is a PMOS, body diode is from SW to Vout, then it should be able to block the voltage from Vout into Vin. Is it right? thanks. BR…
    • over 2 years ago
    • Power management
    • Power management forum
  • LM3644: IR laser driver does not working

    muhammet kocak
    muhammet kocak
    TI Thinks Resolved
    Part Number: LM3644 Hi I want to drive LM3644 using MCU. My strobe signal from Camera is connected to LM3644. TX Pin diasbled 0 Strobe type 0 Strobe enable 1 Torch pin 0 Mode IR drive 01 LED2 off 0 LED 1 ENABLE 0x25 my enable register value. There is…
    • over 2 years ago
    • Power management
    • Power management forum
  • LM3644: PSpice model

    Marvn Arcangel
    Marvn Arcangel
    Part Number: LM3644 Other Parts Discussed in Thread: TCA9548A Hi Team, I am looking for a simulation model of LM3644. Do we have any available for Pspice of TINA? I found no available in TI.com. I was wondering if there is any available on your side. …
    • over 2 years ago
    • Power management
    • Power management forum
  • LM3644: Application with 2V VCSEL

    Ondrej Fisar
    Ondrej Fisar
    TI Thinks Resolved
    Part Number: LM3644 Hi, I would like to use LM3644 to strobe VCSEL at its typical If=600mA. In this condition the VCSEL's Vf=2V. 1. Is LM3644 suitable to drive a LED/VCSEL with Vf lower than 2.3V? 2. What is the lowest Vf supported by this IC? I found…
    • over 2 years ago
    • Power management
    • Power management forum
  • LM3644: does it has flash、psram、Sram?

    Given Ding
    Given Ding
    TI Thinks Resolved
    Part Number: LM3644 Hi Team, just want to check if LM3644 has flash 、 psram 、 Sram 、 DDR. Thanks. BRs Given
    • over 2 years ago
    • Power management
    • Power management forum
  • LM3644: Application problems of chips

    Tonyx.wu
    Tonyx.wu
    Part Number: LM3644 STROBE and TORCH are not connected. Can I use I2C to realize the function
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • LM3644: Could LM3644 read back actual driving current value from register?

    Will Tsai
    Will Tsai
    Resolved
    Part Number: LM3644 Hi Expert, Is the value of Last Flash Register (0x0D) only a setting value? or a real driving current value? I read back Register (0x0D) value in flash mode, but the value is always 0x7F, no change in value. It is really not like t…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
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