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  • LM3644: On the Control of Pins

    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…

  • LM3644: Illumination LED drivers Selection

    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,…

  • LM3644: can it block reverse current

    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…

  • LM3644: IR laser driver does not working

    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…

  • LM3644: PSpice model

    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. …

  • RE: LM3644: Application with 2V VCSEL

    Hi Ondrej, Sorry for the delay. I think it should be ok to use LM3644 in your case. But you should pay high attention to the thermal condition and the power loss on the current source as the device works at pass mode. We have tested LM3644 to drive a…

  • LM3644: does it has flash、psram、Sram?

    TI Thinks Resolved
    Part Number: LM3644 Hi Team, just want to check if LM3644 has flash 、 psram 、 Sram 、 DDR. Thanks. BRs Given

  • LM3644: Application problems of chips

    Part Number: LM3644 STROBE and TORCH are not connected. Can I use I2C to realize the function
    • Answered

  • LM3644: Could LM3644 read back actual driving current value from register?

    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

  • LM3644: HWEN & STROBE & TORCH pin design

    TI Thinks Resolved
    Part Number: LM3644 Hi Team, Please check schematics and especially HWEN & STROBE & TORCH pin, thanks!

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