20mm DD LED Driver ADV20MMDDFET v1.0

by ADV.
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2 layer board of 0.79x0.79 inches (20.04x20.04 mm).
Shared on January 4th, 2015 03:25.

Basic 20mm direct drive FET based LED driver, PWM on ATtiny13a PB1 (pin 6), 4.3v zener, reverse polarity protection. NO low voltage or thermal protection.

U1: ATtiny13a or equivalent

FET (U2): Infineon BSC010NE2LSI n-channel MOSFET (8-PowerTDFN package)

D1: rectifier diode (BAV116W-7-F) or jumper

D2: 4.3v zener diode (MMSZ5229B-TP)

C1: 4.3 - 10uf

R1: 200ohm

Center positive connection allows for direct connection between emitter and positive spring braid. 2mm wide ground rings with additional 1mm clearance to components.

Bench tested, not tested in light

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