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Xinglight 2812B yellow/white 12 V 5050 (9-14 V, 8.5 mA)

1-wire W · Xinglight · xinglight

Channels
W
Bits / channel
8
Supply
9–14 V
PWM
—
Backup data
no
Packages
1

No datasheet names the driver IC or its maker: the sheets are Xinglight letterhead documents titled with the SKU only, so this protocol is defined by the figures the sheets print (supply, per-channel current, timing table, pin set), not by a known die.

Three dies (yellow, cool white, warm white), 24-bit frame in “YWWW” order as printed (four letters for 24 bits - see xl-2812b-sk75-white). The sheet says preset 8 mA/channel in prose and Iout 8.5 mA in the test condition; the reliability test current is 8 mA.

Datasheets disagree: “preset 8 mA / channel” (p2) against “Iout RGB = 8.5 mA” (electrical table) on the same sheet.

Refresh & flicker

IDD 0.26 mA at 12 V, VIH 2.3 V, VIL 1.9 V, tPLH 70 ns (5050YWWWC-12V sheet C51900945).

Timing

Xinglight 2812B yellow/white 12 V 5050 (9-14 V, 8.5 mA) bit timingXinglight 2812B yellow/white 12 V 5050 (9-14 V, 8.5 mA) bit timing: a zero bit is 300 nanoseconds high then 900 low; a one bit is 900 high then 300 low; reset 200 microseconds low1 · Bit encoding, to scaleDINhighlowbit 0 period 1200 nsbit 1 period 1200 nsT0H 300 nsT1H 900 nsT0L 900 nsT1L 300 ns"0" bit"1" bit020040060080010001200140016001800200022002400time, ns2 · One frame: 8 bits, most-significant bit firstDIN1701100100bitch 1 · 8 bitsChannel order not recorded for this protocol · frame = 8 × ~1200 ns ≈ 9.6 µs · example data, first bits 1 0 1 …3 · RESET / latchlast bits of frame 1first bits of frame 2LEDs latch the data they receivedRESET: DIN low ≥ 200 µs (not to scale)4 · Cascade: each DOUT feeds the next DINMCULED 1DINDOUTLED 2DINDOUTLED NDINDOUTLED 1 keeps the first 8 bits, re-shapes the signal and sends the rest out on DOUT;LED 2 keeps the next 8, and so on. The last LED's DOUT is left unconnected.
T0H 300 / T0L 900 · T1H 900 / T1L 300 ns · period 1200 ns · reset 200 µs source: datasheet
SourceT0HT0LT1HT1LPeriodRateReset±
datasheet ↗ 300 ns 900 ns 900 ns 300 ns 1200 ns 833 kHz 200 µs —
Minimum-only table: Tin0h >= 0.3, Tin1h >= 0.9, T0L >= 0.9, T1L >= 0.3, cycle >= 1.2 us, reset > 200 us.

Library support

Not checked against any library. The sheets state a 24-bit (32-bit for IC-01W) frame sent high bit first at 800 kbps.

Parts using this protocol

Dating evidence

Evidence, not a release date. A library commit proves the part existed by that date and says nothing about how long before.

  • 2025-12-30 estimate PDF CreationDate metadata of Xinglight sheet XL-5050YWWWC-2812B-12V (LCSC C51900945); the sheet has no revision table, so this is only the date the PDF file was produced ↗ day