TM1824 Pixel Protocol
Manufacturer: Titan Micro ElectronicsThe TM1824 is a single-wire, self-clocking RGBW pixel IC in a SOP8 package, running across a wide 5 to 24V supply.
Specifications
| Specification | Detail |
|---|---|
| Clock Type | Data-Only |
| Color Resolution | 8 Bits |
| Physical Package | SOP8 |
| RGB | No |
| RGBW | Yes |
| Output Pixel Voltage | 5 - 24V |
| PWM Rate | 1000Hz |
| Suitable Camera | Up to 33fps |
| Redundant Data Line | No |
Strengths
- Single-wire, data-only wiring keeps installs simple: one data conductor per run with no separate clock line to route, terminate, or fault-find, which lowers cabling cost and eliminates the clock as a failure point.
- Integrated RGBW control with a dedicated white channel (8 bits per channel) supports cleaner whites and pastel mixes than an RGB-only pixel, while the wide 5 to 24V range allows higher-voltage runs that reduce voltage drop and copper over long lengths.
- Supported across ENTTEC pixel controllers (OCTO 71521, PIXELATOR MINI / MK2 70067/70068, DIN PIXIE 73539, and PLINK Injectors), which drive a wide range of pixel protocols; contact ENTTEC about any chip not listed.
Limitations
- 1000Hz PWM is comfortably flicker-free at the rated 33fps capture, but it leaves limited headroom for faster camera work; broadcast or slow-motion shoots may prefer a higher-refresh part.
- No redundant or backup data line: a single failed pixel or broken data joint blanks everything downstream, so plan for accessible spare pixels and reliable connectors on long runs.
- As a self-clocking single-wire protocol the bit timing is tight and sensitive to cable length, signal integrity, and 3.3V-to-5V level shifting; long data leads may need a buffer or a data injector to stay reliable.
Overview
The TM1824 is an addressable RGBW LED pixel driver using a single-wire, self-clocking data protocol in the WS2812 family. Each node integrates its own controller, latches 8-bit-per-channel data for red, green, blue and a dedicated white, then forwards the remaining stream down the chain. It operates across a wide 5 to 24V range and drives PWM at 1000Hz, which is comfortably flicker-free for capture up to 33fps. There is no redundant data line, so every downstream pixel depends on the node before it. ENTTEC is not affiliated with Titan Micro Electronics.
Mapping an installation? ELM, ENTTEC's free LED pixel mapping software, drives the controllers above over Art-Net and sACN, from a single fixture to building-scale maps.
ENTTEC has been engineering lighting control in Australia since 1999, and shipping LED pixel controllers since the original Pixelator in 2014.