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STD Constant current LED driver 8 channels (PT4115)

Constant current LED driver 8 channels (PT4115)

Project tags

License

GPL 3.0

License: GPL 3.0

Mode:

Mode

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Update time: 2024-01-04 14:33:07
Creation time: 2023-08-01 13:12:30
Description

Description

  • Constant current LED driver with 8 channels based on PT4115.
  • Controlled by ESP32, for use with ArtNet protocol.
  • Power supply from 8V to 30V (use suitable capacitor voltage) allow connecting several LEDs in series on each channel.
  • Change 0.13R resistor to set max current (Current = 0.1/R).
  • Some pin headers for future extensions, like servo to make a tiny moving head projector.

 

Provided source code is for ArtNet control with 2 RGB and 2 White with following DMX config :

  1. Master dimmer
  2. RGB0 Color
  3. RGB0 Dimmer
  4. RGB0 Saturation
  5. RGB1 Color
  6. RGB1 Dimmer
  7. RGB1 Saturation
  8. Cold White Dimmer
  9. Warm White Dimmer

 

Design Drawing

Design Drawing

schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 1u C1,C2,C3,C4,C9,C10,C11,C12 CP_TANTALUM_CASE-B_EIA-3528-21_REFLOW 8
2 100u C5,C6,C7,C8,C13,C14,C15,C16 CP_TANTALUM_CASE-D_EIA-7343-31_REFLOW 8
3 SS34 D1,D2,D3,D4,D5,D6,D7,D8,D9 SMA_L4.3-W2.5-LS5.0-FD 9
4 100uH L1,L2,L3,L4,L5,L6,L7,L8 IND-SMD_L7.3-W7.3_CDRH74 8
5 LED0 P1 CONN-TH_2P-P5.00_KF301-2P 1
6 LED1 P2 CONN-TH_2P-P5.00_KF301-2P 1
7 LED2 P3 CONN-TH_2P-P5.00_KF301-2P 1
8 LED3 P4 CONN-TH_2P-P5.00_KF301-2P 1
9 LED4 P5 CONN-TH_2P-P5.00_KF301-2P 1
10 LED5 P6 CONN-TH_2P-P5.00_KF301-2P 1
11 LED6 P7 CONN-TH_2P-P5.00_KF301-2P 1
12 LED7 P8 CONN-TH_2P-P5.00_KF301-2P 1
13 0.13 R1,R2,R3,R4,R5,R6,R7,R8 R1206 8
14 PT4115 U1,U2,U3,U4,U5,U6,U7,U8 SOT-89-5_L4.5-W2.5-P1.50-LS4.5-BR 8
15 220u C17 CAP-SMD_BD6.3-L6.6-W6.6-LS7.6-FD 1
16 10uF C18 C1206 1
17 470u C19 CAP-SMD_BD10.0-L10.3-W10.3-LS11.0-FD-1 1
18 100nF C20,C21,C23 C0805 3
19 22uF C24 C1206 1
20 SERVO1 J1 HDR-M-2.54_1X3 1
21 PROG J2 HDR-M-2.54_1X3 1
22 SERVO2 J3 HDR-M-2.54_1X3 1
23 UART2 J4 HDR-M-2.54_1X3 1
24 EXT J5 HDR-M-2.54_1X5 1
25 47uH L9 IND-SMD_L10.0-W10.0_SUMIDA_CDRH104 1
26 LED LED1,LED2 LED0805_RED 2
27 3MMHOLE_PTH P9,P10,P11,P12 MOUNTINGHOLE_2.7MM_M2.5_PAD 4
28 EN PUSH1 KEY-SMD_4P-L6.0-W6.0-P4.50 1
29 IO0 PUSH2 KEY-SMD_4P-L6.0-W6.0-P4.50 1
30 1k R9,R10 R0805 2
31 10k R11,R12,R13,R14,R15,R16,R17,R18,R19,R20,R21,R22 R0805 12
32 AMS1117-3.3 U9 SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR 1
33 POWER U10 CONN-TH_2P-P5.00_KF301-2P 1
34 ESP32-WROOM-32E-N16 U11 WIFI-SMD_ESP32-WROOM-32E 1
35 LM2596S-5.0 U12 TO-263-5_L10.2-W8.9-P1.70-BR 1

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Project Attachments

Project Attachments

Order File name Download times
1

Pt4115-8Ch-DualRGB2Wp.zip

35
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