Addressable RGBWIC LED Chip Comparisons

Addressable RGBW IC chip is an important factor when choosing an addressable RGBW led strip light, it affects whether you can use the preferred controller to adjust the brightness and color and mode of the RGBW LED lights.

There are a variety of addressable RGBWIC chips on the market such as the most commonly used SK6812, and other UCS2904, WS2814, TM1814, TM1824, DMX512 (UCS512), SM16704, etc.

How to choose a suitable RGBW LED IC for your project needs among these many IC chips? First of all, you need to know the difference between these ARGBW (Addressable RGBW) IC chips.

Addressable LED RGBWIC Chips Comparison
Addressable LED RGBWIC Chips Comparison

IC chip will affect the following factors:

  • Whether the addressable RGBW led tape is compatible with the controller you choose
  • Requirements in terms of lighting performance such as data transmission rate, refresh rate, grayscale level, and color accuracy and consistency, etc.
IC TypePackageLED ChipInput VoltageData Transfer RatePWM Output FrequencyPort Voltage WithstandConstant Current (/CH)Grayscale
SK6812 RGBWIntegrated, SOP10SMD5050, SMD4040, SMD3535DC5V, DC12V, DC24V800KHz1200Hz26V12mA256
TM1814 RGBWSOP8SMD5050DC12V, DC24VExternal control 800KHz, Internal control 500KHz1000Hz32V6.5-38mA256
TM1824 RGBWSOP8SMD5050, SMD4040DC12V, DC24V800KHz1000Hz32V18mA256
UCS2904 RGBWSOP8SMD5050DC12V, DC24V800KHz1800HZ26V17mA256
WS2814 RGBWSOP12, SSOP10SMD5050DC12V, DC24V800KHz2000Hz12V16mA256
WS2814F RGBWSOP8/ SOT23-8COBDC24V800KHz2000Hz12V16mA256
SM16704 RGBWSOP8SMD5050DC12V, DC24V800KHz1200Hz26V17mA256
DMX RGBW (UCS512H Series)SOP10, SOP16SMD5050, SMD5050+SMD2835, SMD4040DC12V, DC24V, DC48V800KHz250-3200Hz28V120mA max65536
DMX RGBW (UCS512C4)SOP16/ SSOP16SMD5050DC24V800KHz3600Hz30V60mA max256
DMX RGBW (UCS512D)SOP16/ ESOP16SMD5050DC24V, DC36V800KHz4000Hz\200mA max65536
DMX RGBW (UCS512B)SOP16SMD5050DC24V800KHz3200Hz\17mA default, 60mA max256
Differences between LED RGBWIC chips


SK6812 RGBW is the most commonly used addressable RGBW IC chip with a wide range of compatibility with many common LED controllers and the ability to integrate into DIY lighting projects based on platforms such as Arduino, Raspberry Pi, Adafruit NeoPixel Library, FastLED library and more. There are many online resources and communities available to help novices learn how to use the SK6812 RGBW LED to create personalized lighting projects.

SK6812 RGBWIC can be presented in two ways. SK6812 IC chip is embedded in a 5050 or 4040 or 3535 4-in-1 RGBW SMD LED, and the IC chip is built-in which usually achieves a state where each LED is individually addressable. SK6812 IC placed outside of SMD5050 RGBW LED usually only allows one single IC pixel to control multiple LEDs.

PDF SK6812 RGBW Datasheet Download

VoltageIC PlacementDataLED DensityPCB WidthPCB Color
5VBuilt in LED, Individually addressableSingle data line30LEDs/m, 60LEDs/m,72LEDs/m, 96LEDs/m,  120LEDs/m, 144LEDs/m5.5mm, 8mm, 10mm, 12mmWhite, Black
12VBuilt in LED, Individually addressableSingle data line30LEDs/m, 54LEDs/m, 60LEDs/m, 120LEDs/m (not individually addressable)10mm, 12mmWhite, Black
12VExternal IC (Outside of LED)Dual data line60LEDs/m10mmWhite, Black
24VExternal IC (Outside of LED)Single data line60LEDs/m10mmWhite, Black
12-24VBuilt in LED, Individually addressableSingle data line60LEDs/m12mmWhite
SK6812 RGBW LED Strip Specifications

If you want to choose a suitable SK6812 RGBWIC type, you can start from the following two aspects:

Voltage: Low voltage system 5V SK6812 RGBW is susceptible to cable resistance and voltage drop, so it is suitable for DIY projects and small decorative lighting applications; High voltage system 12V and 24V SK6812 RGBW is more stable in long distance cable transmission, which is suitable for medium and large scale projects.

In addition, due to the circuit design of each voltage, if you wanna more pixels, please choose 5V and 12V. 24V driven IC chip usually controls multiple LED lights at a time, and a single pixel controls a longer LED segment.

Data transmission: Single data transmission has only one data line, and data transmission is immediately interrupted when a bad LED is encountered. Dual data transmission provides a data redundancy mechanism to ensure that if one channel has a problem, there is still another channel to transmit the correct data.


TM1814 RGBW is an 8pin IC chip external of LEDs and with a single line to transmit data signals. In particular, TM1814 RGBWIC has an internal control module. When the IC chip power supply is normal and detects no signal input from DIN, or the signal was normal and then suddenly lost about 500ms, the fixture enters the internal control mode. At the same time, the DO port will automatically send data to back-end chips to realize synchronous display. After the TM1814 chip enters the internal control mode, it sends data 1918 points.

PDF TM1814 RGBW Datasheet Download

PDF TM1824 RGBW Datasheet Download

TypeVoltageIC PlacementDataLED DensityPCB WidthPCB Color
TM181412VExternalSignal data line60LEDs/m, 72LEDs/m, 84LEDs/m, 120LEDs/m (double row)8mm, 10mm, 12mm, 15mmWhite
TM181424VExternalSignal data line60LEDs/m, 72LEDs/m, 84LEDs/m10mm, 12mmWhite
TM182412VExternalSignal data line78LEDs/m10mmWhite
TM182424VExternalSignal data line96LEDs/m, 100LEDs/m10mm, 12mmWhite, Black
TM1814 TM1824 RGBW LED Strip Specifications

TM1814 RGBW vs. TM1824 RGBW

TM1824 RGBWIC is more compatible with with most popular controllers on the market than the TM1814 RGBWIC. For example, SP630E and SP639E controllers do not support LEDs controlled by TM1814 RGBW IC for the time being, and it supports TM1824 RGBW IC.

TM1824 RGBW communication protocol to 0, OUT R/G/B/W port 18mA constant current output. TM1814 RGBW communication protocol to 1, 6.5-38mA 64-level constant current regulation.

TM1814 vs. SK6812

TM1814 is an IC that controls only 5050 RGBW LEDs, while the SK6812 can control multiple SMD types of RGB, RGBW, WWA, and single white LEDs. SK6812 has a voltage range as low as 5V, while the TM1814 RGBW only supports 12V or 24V. An external TM1814 RGBW IC controls three (12V) or six (24V) LEDs simultaneously, while the internal SK6812 IC chip is individually addressable.