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5.0 × 5.0 mm 4 pins top-emitting

IN-PI55QATPRPGPBPW-XX

5050 · smd · Inolux PI RGBW (single-trace IC, 32 bit) · Inolux Corporation

1-wire RGBW 3.7–5.5 V active

Also sold as IN-PI55QATPRPGPBPW-XX

At a glance

Colour
RGBW8 bits per channel
Data
1-wiretimed pulses on one line
Supply
3.7–5.5 Vno backup data line
Size
5.0 × 5.0 × 1.6 mm4 pins · top
Max current
45 mA12 mA per channel
PWM
1.2 kHzreset 80 µs
Library support
FastLED WLED Adafruit

RGBW 5050 pixel, 32 bit per pixel (G, R, B, W; MSB first). White option suffix -60 on the LCSC SKU (see the protocol note). Timing T0H 0.2 / 0.3 / 0.4 us, T1H 0.62 / 0.75 / 1.0 us, reset >80 us; supply 3.7-5.5 V, ESD 2 kV. LCSC stock 0 on 2026-10-15.

Variants

One row per orderable SKU. Everything not listed is inherited from the part above.

Order codeFaceLensWhite PinsSiliconStatusFirst seenDatasheet
IN-PI55QATPRPGPBPW-60 — — — 4 — active 2018-05-31 1.4
LCSC C21157095, stock 0. White option -60 (probably 6000 K; not stated on the sheet).

Pinout

IN-PI55QATPRPGPBPW-60
IN-PI55QATPRPGPBPW-XX 5050 package, top and side viewPin 1 is ringed. pin 1 GND (ground), pin 2 DIN (data in), pin 3 VDD (power), pin 4 DOUT (data out).11 GNDground22 DINdata in33 VDDpower44 DOUTdata out5.0 mm4.9 mmtop view1.6 mmside view
  • Ground
  • Data
  • Power
  • Pin 1
  • Cut corner

Outline and pin positions checked against the manufacturer datasheet (C21157095 IN-PI55QATPRPGPBPW-XX v1.4 p1-2). Bottom-view pads 0.8 x 0.9 mm, 3.4 mm between the columns' inner edges and 2.3 mm between the rows; the PCB land is 1.6 x 1.1 mm pads. Body 5.0 x 4.9 mm as dimensioned. Pin 1 (GND) is the bottom-right pad beside the cut corner. What this means.

  1. 1 GND ground
  2. 2 DIN data in
  3. 3 VDD power
  4. 4 DOUT data out

Protocol — Inolux PI RGBW (single-trace IC, 32 bit)

Timings shown from datasheet.

Inolux PI RGBW (single-trace IC, 32 bit) bit timingInolux PI RGBW (single-trace IC, 32 bit) bit timing: a zero bit is 300 nanoseconds high then 800 low; a one bit is 750 high then 200 low; reset 80 microseconds low1 · Bit encoding, to scaleDINhighlowbit 0 period 1100 nsbit 1 period 950 nsT0H 300 nsT1H 750 nsT0L 800 nsT1L 200 ns"0" bit"1" bit0200400600800100012001400160018002000time, nsDatasheet lists unequal bit periods (1100 vs 950 ns); each bit is drawn with its own.2 · One frame: 32 bits, most-significant bit firstDIN1701100100071001101017001011001711000010bitch 1 · 8 bitsch 2 · 8 bitsch 3 · 8 bitsch 4 · 8 bitsChannel order not recorded for this protocol · frame = 32 × ~1100 ns ≈ 35.2 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 ≥ 80 µs (not to scale)4 · Cascade: each DOUT feeds the next DINMCULED 1DINDOUTLED 2DINDOUTLED NDINDOUTLED 1 keeps the first 32 bits, re-shapes the signal and sends the rest out on DOUT;LED 2 keeps the next 32, and so on. The last LED's DOUT is left unconnected.
T0H 300 / T0L 800 · T1H 750 / T1L 200 ns · reset 80 µs source: datasheet

Compatibility

  • protocol compatible SK6812 RGBW

    Frame layout only: 32 bit, G R B W, MSB first, one wire, which is the layout the sk6812-rgbw protocol records. The typical T1H here is 750 ns (640 on the PI33QB sheet), not the 600 ns of the SK6812 rev. 02 table. The Inolux sheets never name SK6812. source ↗

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.

  • 2018-05-31 datasheet revision Inolux IN-PI55QATPRPGPBPW-XX revision table: 'Initial Release 1.0 05-31-2018' ↗ day

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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