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6 Channel LED Driver

author: AtticusG3
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4 layer board of 2.40 x 1.55 inches (61.0 x 39.4 mm)
Uploaded: August 03, 2014
Shared: August 03, 2014
Total Price: $37.20

Alpha prototype stage.

This board uses an onboard Atmega328p to drive 6 N-Channel Mosfets with it’s PWM pins.

D2, D4, A0 and A1 are broken out along with GND 5v and Vin to a 2x5 header designed to run an external switch panel.

ISCP pins are also broken out to allow in-situ programming.

Heatsinking will be required for the Voltage regulator as it’s using an adjustable regulator to regulate from 12v down to 5v.

An LM1117MPX-5.0 fixed regulator can be used instead, leave R9 unpopulated and bridge R10 with a 0R link. C5 and C7 can be replaced with suitable Ceramics, though the datasheet suggests tantalum’s.

Heatsinking maybe required for the MOSFET’s depending on current draw, I suggest soldering them to the underside of the board and heatsinking them to your case, insulate them of course.

BOM

  • Atmega328p-au
  • Voltage Regulator
  • Reset Switch
  • MOSFETS
  • Crystal
  • Screw Terminals
  • LED’s
  • Resistors/Capacitors
  • Tantalum Caps

Alpha prototype stage.

This board uses an onboard Atmega328p to drive 6 N-Channel Mosfets with it’s PWM pins.

D2, D4, A0 and A1 are broken out along with GND 5v and Vin to a 2x5 header designed to run an external switch panel.

ISCP pins are also broken out to allow in-situ programming.

Heatsinking will be required for the Voltage regulator as it’s using an adjustable regulator to regulate from 12v down to 5v.

An LM1117MPX-5.0 fixed regulator can be used instead, leave R9 unpopulated and bridge R10 with a 0R link. C5 and C7 can be replaced with suitable Ceramics, though the datasheet suggests tantalum’s.

Heatsinking maybe required for the MOSFET’s depending on current draw, I suggest soldering them to the underside of the board and heatsinking them to your case, insulate them of course.

BOM

  • Atmega328p-au
  • Voltage Regulator
  • Reset Switch
  • MOSFETS
  • Crystal
  • Screw Terminals
  • LED’s
  • Resistors/Capacitors
  • Tantalum Caps
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      Ordering shared project

      Hey there! Before ordering, make sure you have all the info you need to complete and use this design. This usually means a component list, and sometimes additional information such as assembly notes, source code, or usage guides.
      Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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