TLC5940 LED driver board
About the TLC5940 LED driver board
TLC5940 LED driver board is an open source PCB design by PinBus, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 75 × 50 mm, with 28 components from 11 distinct parts.
Other key parts include the TLC5940NT. By type, the board carries 20 connectors, 3 resistors, 2 diodes, 2 capacitors and 1 IC.
From the project
This is a board designed for a TLC5940 LED driver IC. Each of the TLC5940's outputs has a separate connector. It can be used with the 1206 LED Satellite Board.
This is a board designed for a TLC5940 LED driver IC. Each of the TLC5940's outputs has a separate connector. It can be used with the 1206 LED Satellite Board.
The values of the parts listed in the BOM are chosen based on VCC = +5V, VO = +12V, and IOLC = 30mA. If you want another value for IOLC, change the value of resistor R1 using the formula given on page 17 of the datasheet.
Main components on the TLC5940 LED driver board
TLC5940 LED driver board bill of materials (BOM)
28 components, 11 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TLC5940NT | DIP-28_W7.62mm_Socket | U1 |
| 16 | Conn_01x02_Male | JST_XH_B02B-XH-A_02x2.50mm_Straight | J0, J1, J2, J3, J4, J5, J6, J7 +8 |
| 1 | Conn_01x03_Male | Socket_Strip_Straight_1x03_Pitch2.54mm | J16 |
| 2 | Conn_01x06_Male | JST_XH_B06B-XH-A_06x2.50mm_Straight | J17, J18 |
| 1 | Conn_01x03_Male | Molex_KK-41791-03_03x3.96mm_Straight | J20 |
| 2 | LED | LED_D3.0mm | D1, D2 |
| 1 | 100nF | C_Rect_L7.0mm_W2.0mm_P5.00mm | C1 |
| 1 | 1uF | CP_Radial_D4.0mm_P2.00mm | C2 |
| 1 | 1.3K | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1 |
| 1 | 180 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2 |
| 1 | 560 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3 |
TLC5940 LED driver board design files
The KiCad project lives in the PinBus/TLC5940_LED_driver_board repository on GitHub; these links point at the commit this page was built from.
TLC5940 LED driver board: common questions
How big is the TLC5940 LED driver board?
The TLC5940 LED driver board measures 75 × 50 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the TLC5940 LED driver board?
28 components, from 11 distinct parts. The full bill of materials is listed on this page.
Where can I download the TLC5940 LED driver board design files?
From the PinBus/TLC5940_LED_driver_board repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the TLC5940 LED driver board design in my own project?
Yes, under the terms of its GPL-3.0 license, which PinBus chose for the repository.