Breakout Board for TLC5947 LED Driver or other 32-Pin HTSSOP and TSSOP Package
This is a breakout board for the TI TLC5947 IC, a constant-current LED driver supporting 24 channels and 12-bit PWM control per channel. Unfortunately, this powerful yet easy-to-drive IC is only available in high-density packages that are hard to solder without special equipment and skill. Even more so considering that the TSSOP package not only features a 0.65mm pitch but also requires an integrated heat sink underneath — this is what TI calls a DAP/PowerPAD Thermally Enhanced package. That means that there is a thermal pad at the bottom side of this HTSSOP package that needs to be connected (i.e., soldered) to a heat sink (i.e., two or more copper planes connected through thermal vias) integrated such as designed) into the PCB.
Features
- breakout board for TI TLC5947 constant-current LED driver
- supporting 24 channels and 12-bit PWM control per channel
- heat sink integrated in PCB using thermal vias
- available with TLC5947 IC soldered on
- available with R1 preconfigured for 15, 20mA constant current
- also available as a plain item without any components soldered on for use with any other TSSOP IC (up to 32 pins) in a 0.65mm pitch
- standard 2.54mm (100 mils) pitch, narrow size, making this board very suitable for use on a breadboard
- size: 22.86×43.18mm
- high-quality PCBs designed in KiCad and produced by Aisler (Germany), PCBWay (China), and OSH Park (USA)
Usage
- This board has a TLC5947 IC soldered on and a plain, empty item that can break out any other TSSOP IC (up to 32 pins) in a 0.65mm pitch.
- This breakout board’s standard 2.54mm (100 mils) pitch and narrow size make it suitable for use on a breadboard.
- I have used this board to drive 16-segment LED displays when developing a display and effect library for this type of element in C for AVR8.
- For people willing to create their design using the TLC5947 IC, a footprint for KiCad is available here.
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