• LM3644: Torch mode meaning

  

  Fred Cheng

  TI Thinks Resolved

  Part Number: LM3644 Hi team, 1. Can I said flash mode is just a mode that is lighter than torch mode? 2. If I pull TX pin to high or pull TORCH/TEMP to high, does this mean I can't enter flash mode forever? or can I still use register to enter…

  • 2 months ago
  • Power management
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Answered

• LM3644: Max current for flash mode

  

  Frank(DLP) Liu

  Resolved

  Part Number: LM3644 hi, Can I parallel the LED1\2 to drive 3A in flash mode? BR, frank

  • Resolved

  • 9 months ago
  • Power management
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Answered

• LM3644: Thermal shutdown

  

  Jim Tseng

  Resolved

  Part Number: LM3644 Hey Expert, could you please check the TSD function is ok for us to read the Flags1 Register(0X0A) of Bit2 when IC over thermal and shut down.

  • Resolved

  • over 1 year ago
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Answered

• LM3644: Information on what to do with unused TORCH/TEMP and TX pins

  

  Srinjay Bhattacharya

  Resolved

  Part Number: LM3644 Hi everyone, I was designing a circuit using the LM3644 and do not require the functions of TORCH/TEMP and TX pins. I want to enquire on what to with the unused pins. Can we keep them floating or do we need to connect it to…

  • Resolved

  • 10 months ago
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Answered

• LM3644: to do the alternative solution for LM3648

  

  Henry Wang3

  Resolved

  Part Number: LM3644 Other Parts Discussed in Thread: LM3648 Hi Sirs, May I know the LM3644 can connect 2-ch to drive one LED(peak current max = 2A)? It means we will use it to do the 2nd source device for the LM3648.

  • Resolved

  • over 1 year ago
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• LM3644: LM3644 is hung under CPU I2C or CPU Sensor HUB I2C

  

  andy li1

  TI Thinks Resolved

  Part Number: LM3644 Hi I want to know the lm3644 is hung under CPU I2C or CPU Sensor HUB I2C? the cpu is Intel Tiger Lake UP4. Notebook project

  • over 1 year ago
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Answered

• LM3644: Control two LEDs separately?

  

  Jayden Li

  Resolved

  Part Number: LM3644 Hi team, I am promoting our LM3644 to our customer. And they are considering using this device in their new projects! Here is their question about this device: Can the two LEDs be controlled separately? Both on brightness and ON/OFF state…

  • Resolved

  • over 1 year ago
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• LM3644: Ripple Control

  

  Mark Philip Felipe

  TI Thinks Resolved

  Part Number: LM3644 Hi Team, we would like to seek your inputs on this.We need to control the burrs(ripple) in 100mv (3.3V). Is there any suggestion? Thank you very much. Regards, Mark

  • over 1 year ago
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• LM3644: LM3644

  

  Rajesh Kora

  TI Thinks Resolved

  Part Number: LM3644 Hi Team, Just a few question about LM3644 LED driver, 1. Can we drive 1.5A from each LED channel (1.5A + 1.5A, total of 3A) ? 2. If we are not using TX, STROBE & Torch pins, can we left it floating? Thanks you, K. Rajesh

  • over 2 years ago
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• LM3644: Need a automotive grade part like LM3644 with IR mode feature

  

  Alpha Ting

  TI Thinks Resolved

  Part Number: LM3644 Other Parts Discussed in Thread: TL4242-Q1 , , TPS92515AHV-Q1 Hi Sir, I have a serdes camera with IR LED and want to drive 1A@20% duty by IR mode. I need a small package IR LED driver automotive grade. Please help me suggest one. thanks…

  • over 2 years ago
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