6 Channel LED Driver
author: AtticusG3
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
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.
