• TLC5973: What is the maximum VLED voltage?

  

  najath

  TI Thinks Resolved

  Part Number: TLC5973 In section 9.2.3 of the TLC5973 datasheet, discussing "Internal Shunt Regulator Mode", examples has been given for the VLED value of 24VDC. I had used those calculations to design a circuit for controlling 6 RGB LEDs. A prototype…

  • over 6 years ago
  • Power management
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Answered

• TLC5973: SDI pin

  

  Eng Lih Khaw

  Resolved

  Part Number: TLC5973 Hi, I've questions regarding TLC5973 - Can I use GPIO from microcontroller to drive the SDI pin? If no, please advise the appropriate pin to drive it - Does this device has EVM? Thanks

  • Resolved

  • over 7 years ago
  • Power management
  • Power management forum
Answered

• TLC5973: 24VDC power for this device allowed

  

  Dirk Ketting

  Resolved

  Part Number: TLC5973 Regarding this part, the maximum voltage that can be used for Vled is 21V. Is it possible to also use 24V since that is a "standard" voltage which is commonly available. If this is not advised, how to use the this device with a…

  • Resolved

  • over 7 years ago
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• TLC5973: Set up

  

  Laura Shuey

  TI Thinks Resolved

  Part Number: TLC5973 (1) Can you confirm if the SDI pin for TLC5973 can be connected to host controller GPIO pin directly? (2) Does it need any pullups? (3) Does it need to connect to specific 1-wire interface controller?

  • over 8 years ago
  • Power management
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• TLC5973: Power dissipation

  

  Macit Seyedin

  Part Number: TLC5973 hi in datasheet the max absolute rating of output current is 60mA. but I could not find absolute max rating of power dissipation (mW) . how can I calculate the max absolute rating for power ? regards

  • over 8 years ago
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Answered

• TLC5973: Minimum Shunt regulator sink current

  

  user5089073

  Resolved

  Part Number: TLC5973 Hi, I used 6 series leds and Vsupply (VLed) is 24V in my design. According to equantion 2. in datasheet, Rvcc must be Rmin=1.3kΩ and Rmax=1.6kΩ. And I used Rvcc=1.5kΩ and Rvcc=3.3kΩ separately in my design. For these values…

  • Resolved

  • over 8 years ago
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• TLC5973: Firmware example for EasySet

  

  Keith Nicholas

  Part Number: TLC5973 Hello Team, Do we have any firmware examples or source code that shows how to implement EasySet for the TLC5973? Thank you, Keith N.

  • over 8 years ago
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• TLC5973: PWM output resets with GSLAT

  

  Jef Van Themsche

  TI Thinks Resolved

  Part Number: TLC5973 I can get the TLC5973 working, but I see a major flaw in the design: When I send a GSLAT signal to latch the data, the whole PWM generator resets and starts with the new data. This generates a glitch/jitter in the PWM. Even if the…

  • over 9 years ago
  • Power management
  • Power management forum
Answered

• RE: TLC5973: Use in new fixture design to control a string of LEDs

  

  najath

  Resolved

  Thank you.

  • over 8 years ago
  • Power management
  • Power management forum

• TLC5973

  

  Jamaal_Charles

  Other Parts Discussed in Thread: TLC5973 Hello, we are using designing with the TLC5973, and the chart below from the data sheet suggests that there is a dropout voltage or an overhead at the driver output to maintain constant current regulation. It…

  • over 11 years ago
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