At a glance
- Colour
- RGBW8 bits per channel
- Data
- 1-wiretimed pulses on one line
- Supply
- 3.5–7.5 Vno backup data line
- Size
- 5.4 × 5.0 × 1.6 mm4 pins · top
- Max current
- —per-channel not recorded
- PWM
- 4 kHzreset 80 µs
- Library support
- FastLED WLED Adafruit
Four-channel (RGBW) driver in a 5050 package. The sheet calls the IC a “four-channel LED driver IC” with an MCU digital interface, data latch and LED drive; GRBW data order, 32 bits per pixel plus an optional 20-bit gain word (five bits per channel, 2.4 mA to 39.6 mA in 1.2 mA steps). Default drive is 12 mA per channel; the sheet says the controller may omit the 20 gain bits when the 12 mA default is wanted. White channel 4-6 lm; the FW601 sheet prints colour temperature 6000-6500 K and the FW802 sheet 8000-10000 K. Pins 1 VDD, 2 DO, 3 GND, 4 DIN (same drawing as the RGB TX1812 5050 sheets). Supply: absolute 3.5-7.5 V, 5.0 V typical.
The FW802 sheet is a copy of the FW601 sheet with the title and the colour temperature (8000-10000 K) changed; both label the colour-temperature row with the symbol “W8”. The sheets do not say how the 3xx / 6xx / 8xx / 610 digits in the -FW suffix map to colour temperature beyond those two printed ranges.
The four CWBL-FW SKUs (FW301, FW601, FW610, FW802) have no datasheet on LCSC. They are placed here because their -FW suffix matches only this RGBW sheet family (no RGB sheet carries FW), but the third and fourth letters differ (CWBL against CLL), so channel count and colour temperature are an inference.
Variants
One row per orderable SKU. Everything not listed is inherited from the part above.
| Order code | Face | Lens | White | Pins | Silicon | Status | First seen | Datasheet |
|---|---|---|---|---|---|---|---|---|
| TX1812CLL-FW601 | — | — | — | 4 | — | active | 2023-02-25 | A2 |
| Sheet prints white 6000-6500 K, 4-6 lm at 12 mA. Cover date 2023-02-25, version A2, 0.2 W. LCSC stock 935 on 2026-10-15. | ||||||||
| TX1812CLL-FW802 | — | — | — | 4 | — | active | 2023-02-25 | A2A2 ↗ |
| Sheet is the FW601 sheet with the title and white colour temperature (8000-10000 K) changed. Cover date 2023-02-25, version A2. LCSC stock 695 on 2026-10-15. | ||||||||
| TX1812CWBL-FW301 | — | — | — | 4 | — | active | 2023-02-25 | A2 |
| No datasheet is listed on LCSC for this SKU. Package, pin order and drawing are taken from the sibling sheet TX1812CLL-FW601 and -FW802 because both share IC code 1812 and package letter C (suffix -FW); that is an inference from the part number, not something any sheet states. Drive current, timing window and the meaning of the remaining letters are not confirmed for this SKU. LCSC stock 995 on 2026-10-15. | ||||||||
| TX1812CWBL-FW601 | — | — | — | 4 | — | active | 2023-02-25 | A2 |
| No datasheet is listed on LCSC for this SKU. Package, pin order and drawing are taken from the sibling sheet TX1812CLL-FW601 because both share IC code 1812 and package letter C (suffix -FW601); that is an inference from the part number, not something any sheet states. Drive current, timing window and the meaning of the remaining letters are not confirmed for this SKU. LCSC stock 5 on 2026-10-15. | ||||||||
| TX1812CWBL-FW610 | — | — | — | 4 | — | active | 2023-02-25 | A2 |
| No datasheet is listed on LCSC for this SKU. Package, pin order and drawing are taken from the sibling sheet TX1812CLL-FW601 because both share IC code 1812 and package letter C (suffix -FW); that is an inference from the part number, not something any sheet states. Drive current, timing window and the meaning of the remaining letters are not confirmed for this SKU. LCSC stock 960 on 2026-10-15. | ||||||||
| TX1812CWBL-FW802 | — | — | — | 4 | — | active | 2023-02-25 | A2 |
| No datasheet is listed on LCSC for this SKU. Package, pin order and drawing are taken from the sibling sheet TX1812CLL-FW802 because both share IC code 1812 and package letter C (suffix -FW802); that is an inference from the part number, not something any sheet states. Drive current, timing window and the meaning of the remaining letters are not confirmed for this SKU. LCSC stock 0 on 2026-10-15. | ||||||||
Pinout
- Power
- Data
- Ground
- Pin 1
- Cut corner
Outline and pin positions checked against the manufacturer datasheet (C7495080 TX1812CLL-FW601 rev A2 p4). Pin 1 is top-left, numbering runs counter-clockwise, and the chamfer sits at pin 3 (GND), as in the WS2812B. The sheet marks "+" on the pin 1-2 side and "-" on the pin 3-4 side. Pad sizes read from the drawing; the part spans 5.4 mm across the leads. What this means.
- 1 VDD power
- 2 DO data out
- 3 GND ground
- 4 DIN data in
Protocol — TX1812CLL (RGBW)
Timings shown from datasheet.
Compatibility
-
protocol compatible of this
TCWIN T69
The T69 timing, voltage, thresholds, 32-bit GRBW frame and 20-bit gain table are identical to the TX1812CLL RGBW sheets; the defaults differ (R/G/B 8 mA, W 16 mA against 12 mA) and T69 adds a separate white supply pin VDDW. The T69 sheet does not mention TX1812. Numbers only.
Dating evidence
Nobody announces these parts, so this records what we can actually cite rather than a release date. Library support proves only that the part existed by that date.
Where to buy
Stub data — a few rows so purchase links can grow later. Prices are not tracked.
Similar parts
Same protocol or package first, then the same data scheme and colour channels.
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