2 layers335 × 340.9 mm
RCA Radio Telescope
Glaubinator/Radio-Telescope-RCA
Radio Telescope System for 1 GHz to 2 GHz Operation
81 parts3GPL-3.0
2 layers70 × 40 mm
Led driver
j9brown/led-driverDrives 4 RGB/W LEDs with PWM for a total of up to 3 A controlled over an I2C bus.
- Size
- 70 × 40 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 42
- Pads
- 178
- Tracks, vias
- 423, 40
- Pours
- 204
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 3 May 2025
- Updated
- 3 May 2025
Overview
Led driver is an open-source printed circuit board by j9brown, from the j9brown/led-driver repository on GitHub, published under the MIT licence. It is a 2-layer board of 70 × 40 mm with 34 parts on 42 nets, routed with 423 tracks and 40 vias.
It is built around the DMN2041LSD, B5B-XH-AM and 746X101104JP, with the BM04B-SRSS-TB, RGEF300K-2 and SMF16A-E3-08 among its other parts. Its parts include 8 transistors, 7 connectors, 6 resistors, 4 capacitors and 1 IC. It belongs with the lEDs and displays boards of this library.
Main components
6
DMN2041LSD
SO-8-55℃~+150℃ 1.16W 1.2V 15.6nC 2 N-Channel 20V 28mΩ@4.5V 550pF 7.63A 81pF SO-8 MOSFETs ROHSDiodes IncorporatedMOSFETs
B5B-XH-AM
插件,P=2.5mm-25℃~+85℃ 1 14.9mm 1x5P 2.5mm 250V 3A 5 5.75mm 5P 7mm Brass K Pin、With post PA66 Through Hole Tin UL94V-0 White XH 插件,P=2.5mm Wire To Board Connector ROHSJSTWire To Board Connector746X101104JP
SMD-10P,1.6x3.2mm10 100kΩ 31mW 8 ±200ppm/℃ ±5% SMD-10P,1.6x3.2mm Resistor Networks, Arrays ROHSCTS Electronic ComponentsResistor Networks & Arrays
BM04B-SRSS-TB
Header SR 1.0 SMT top entry, 1mm pitchJSTUncategorised
RGEF300K-2
插件-40℃~+85℃ 100A 16V 1s 2.3W 38mΩ 3A 5.1A 97.5mΩ 插件 Resettable Fuses ROHSLittelfuseResettable Fuses
SMF16A-E3-08
SMF(DO-219AB)1 100nA 16V 19.7V 200W 26V 343pF 7.7A@10/1000us ESD IEC 61000-4-2 SMF(DO-219AB) ESD and Surge Protection (TVS/ESD) ROHSVishay IntertechnologyESD And Surge Protection (TVS/ESD)
README
README.mdLED Driver
Drives 4 RGB/W LEDs with PWM for a total of up to 3 A controlled over an I2C bus.
Design
This design is based around a PCA9685 I2C PWM chip with 16 channels. Each channel drives an N-channel MOSFET low-side switch. Each group of 4 channels and a positive common rail feeds a JST XH 5-pin connector to which an RGB/W LED lamp may be attached.
The I2C bus must be referenced to the same ground as the negative input.
The board is designed for use with a 12 V nominal power supply but should work with anything from about 5 V to 16 V. It includes a 3 A polyfuse and transient voltage suppression. In case of reverse polarity connection, the TVS shunts the power input across the polyfuse.
Notice
The software, documentation, design, and all copyright protected artifacts are released under the terms of the MIT license.
The hardware is released under the terms of the CERN-OHL-W license.
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | DMN2041LSD | DMN2041LSD-13:SOIC127P600X175-8N | Q201, Q202, Q203, Q204, Q301, Q302, Q303, Q304 |
| 4 | B5B-XH-A | Connector_JST:JST_XH_B5B-XH-A_1x05_P2.50mm_Vertical | J201, J202, J301, J302 |
| 3 | 100K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R104, R105, R106 |
| 3 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP101, JP102, JP103 |
| 2 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R101, R102 |
| 2 | 746X101104JP | 746X:RESCAXS64P320X160X70-10N | RN101, RN102 |
| 2 | BM04B-SRSS-TB | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J101, J102 |
| 1 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C104 |
| 1 | 10u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C102 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C103 |
| 1 | 22K | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R103 |
| 1 | 680u | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C101 |
| 1 | NetTie_2 | Generic:NetTie-2_SMD_Pad1.6mm | NT101 |
| 1 | PCA9685PW_118 | PCA9685PW_118:SOP65P640X110-28N | U101 |
| 1 | RGEF300K-2 | RGEF300K-2:FUSRR505W81L660T250H1360 | F101 |
| 1 | SMF16A-E3-08 | Diode_SMD:D_SMF | D101 |
| 1 | VH_S2P-VH | Connector_JST:JST_VH_S2P-VH_1x02_P3.96mm_Horizontal | J103 |
Questions
How big is the Led driver PCB?
It measures 70 × 40 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Led driver use?
34 parts, built around the DMN2041LSD, B5B-XH-AM, 746X101104JP and BM04B-SRSS-TB. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Led driver KiCad files?
From the j9brown/led-driver repository on GitHub, at the commit this page was made from: the board is hardware/led-driver.kicad_pcb and its schematic hardware/led-driver.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Led driver design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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