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picobuck_3-channel_led_driver

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picobuck_3-channel_led_driver [2013/04/09 19:46] – external edit 127.0.0.1picobuck_3-channel_led_driver [2023/03/23 02:48] (current) – external edit 127.0.0.1
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 For project updates, visit [[http://protofusion.org/picobuck|http://protofusion.org/picobuck]] For project updates, visit [[http://protofusion.org/picobuck|http://protofusion.org/picobuck]]
  
-The PicoBuck is a small and inexpensive 3-channel LED driver. It employs constant-current buck driving which approaches an efficiency of 95% (theoretical).+For purchasing, visit [[https://www.sparkfun.com/products/11850|SparkFun Electronics]] 
 + 
 +The PicoBuck is a small and inexpensive 3-channel LED driver. It employs constant-current buck driving which approaches an efficiency of 95%.
  
  
 =====Capabilities===== =====Capabilities=====
   * Input voltage: 6V to 20V   * Input voltage: 6V to 20V
-  * Up to 0.6A / channel drive strength+  * 350mA current regulation (default)
   * Current regulation for each channel set by 0805 resistors   * Current regulation for each channel set by 0805 resistors
   * 3 channels   * 3 channels
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   * Does not support common anode / cathode LEDs   * Does not support common anode / cathode LEDs
   * Internal pullup on control pins: standalone "on" operation   * Internal pullup on control pins: standalone "on" operation
 +
 +===== I want more current! =====
 +You can set drive currents up to around 0.7A (untested!) / channel drive strength by changing the current limiting resistor. The resistor is in a fairly easy-to-solder 0805 package.
 +
 +**More documentation is on the way!** If you have any questions, please email [[ethanzonca@protofusion.org]]
 +
  
 =====Usage===== =====Usage=====
 The controller IC provides two control modes which may be used individually or in conjunction. The controller IC provides two control modes which may be used individually or in conjunction.
 +
 +==== Always-On ====
 +
 +If you don't need to control your LEDs and simply want them to be on all the time, leave the inputs to the PicoBuck disconnected. Internal pullups will drive the LED at full brightness without any connection!
  
 ====Digital Mode==== ====Digital Mode====
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 =====Availability===== =====Availability=====
  
-The PicoBuck is currently not available for purchase; check back soon for more informationTo recieve updates on the PicoBuck and other Protofusion projects, sign up for our mailing list on the right of this page.+The PicoBuck is currently available for purchase from SparkFun Electronics[[https://www.sparkfun.com/products/11850|Buy one now]]!
picobuck_3-channel_led_driver.1365536794.txt.gz · Last modified: 2023/03/23 02:48 (external edit)