Difference between revisions of "20W RGB LED Driver Board Assembly (WS2811 version)"
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[[File:20w-ws2811-kit-v4-2.jpg]] | [[File:20w-ws2811-kit-v4-2.jpg]] | ||
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+ | '''Cut leads''' | ||
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+ | Cut leads as close to PCB as possible. | ||
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+ | [[File:10w-ws2811-kit-v2-s2.jpg]] | ||
+ | |||
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+ | '''Solder diodes''' | ||
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+ | Pay attention to polarity, diode's cathode (stripe) should be on the left side of PCB, pointing towards the LED. | ||
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+ | [[File:20w-ws2811-kit-v4-3.jpg]] | ||
+ | |||
+ | |||
+ | '''Solder monolithic capacitor, transistors, and LDO''' | ||
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+ | Check markings on components, 78L05 is LDO (IC4,) 3904 are transistors. LDO and transistors should be soldered about 0.1" from PCB, total height should be ~0.3". | ||
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+ | [[File:20w-ws2811-kit-v4-4.jpg]] | ||
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+ | '''Solder inductors''' | ||
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+ | Inductors should be as close as possible to PCB. Apply pressure when soldering, heat for ~2-3 seconds, 2-3 times each lead. | ||
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+ | Some inductors may have isolation sticking out on the bottom, trim if that's the case. | ||
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+ | [[File:10w-ws2811-kit-v2-s5.jpg]] | ||
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+ | '''Solder electrolytic capacitor''' | ||
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+ | Use PCB to bend capacitor's leads. Pay attention to polarity. | ||
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+ | [[File:10w-ws2811-kit-v2-s6.jpg]] | ||
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+ | "-" lead should be facing 33R resistors. | ||
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+ | [[File:10w-ws2811-kit-v2-s7.jpg]] | ||
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+ | '''Trim leads''' | ||
+ | |||
+ | Trim all leads, remove excess solder if necessary. | ||
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+ | [[File:10w-ws2811-kit-v2-s8.jpg]] | ||
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+ | [[File:10w-ws2811-kit-v2-s8-2.jpg]] | ||
+ | |||
+ | |||
+ | '''Solder LED''' | ||
+ | |||
+ | Pay attention to polarity and alignment. LED's "+" (anode) should be on the top (left side on the image below,) close to 0.33R resistors. LED's pins cannot touch GND pour. | ||
+ | |||
+ | [[File:10w-ws2811-v2.jpg]] |
Revision as of 06:39, 24 August 2015
BOM
QTY Part Description 3 IC1,IC2,IC3 PT4115 constant current buck driver (soldered) 1 IC4 78L05 LDO 1 IC5 WS2811 (soldered) 3 L1,L2,L3 100uH inductor, 6x8mm, 500ma 3 T1,T2,T3 2N3904 transistor 3 D1,D2,D3 1N5819 diode 3 R1,R2,R3 0.33R resistor 3 R4,R5,R6 10K resistor 3 R7,R8 33R resistor 1 C1 47uF/50V capacitor 1 C2 0.1uF capacitor
Solder resistors
Use as little solder as possible.
Cut leads
Cut leads as close to PCB as possible.
Solder diodes
Pay attention to polarity, diode's cathode (stripe) should be on the left side of PCB, pointing towards the LED.
Solder monolithic capacitor, transistors, and LDO
Check markings on components, 78L05 is LDO (IC4,) 3904 are transistors. LDO and transistors should be soldered about 0.1" from PCB, total height should be ~0.3".
Solder inductors
Inductors should be as close as possible to PCB. Apply pressure when soldering, heat for ~2-3 seconds, 2-3 times each lead.
Some inductors may have isolation sticking out on the bottom, trim if that's the case.
Solder electrolytic capacitor
Use PCB to bend capacitor's leads. Pay attention to polarity.
"-" lead should be facing 33R resistors.
Trim leads
Trim all leads, remove excess solder if necessary.
Solder LED
Pay attention to polarity and alignment. LED's "+" (anode) should be on the top (left side on the image below,) close to 0.33R resistors. LED's pins cannot touch GND pour.