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5.4 × 5.0 mm 6 pins top-emitting

BB-HBGR32L-3-TRB-8

5050 · smd · ABOC HBGR32L two-wire IC (18 mA) · American Bright Optoelectronics

SPI RGB 4.5–5.5 V active

Also sold as BL-HBGR32L-3-TRB-8, HBGR32L

At a glance

Colour
RGB8 bits per channel
Data
SPIclock + data, timing-tolerant
Supply
4.5–5.5 Vno backup data line
Size
5.4 × 5.0 × 1.6 mm6 pins · top
Max current
54 mA18 mA per channel
PWM
20 kHzno reset period
Library support
FastLED WLED Adafruit

Datasheets disagree: see the aboc-hbgr32l protocol. The BB- sheet (Ver2.0) puts Red, Blue, Green in the LED frame and gives DIN VIH 3.0 V; the BL- sheet (Ver2.2) puts Blue, Green, Red and VIH 0.7 x VCC. The part number says BGR. The two sheets also differ in the IC driver diagram (the BB- sheet’s Rev. 1.3-1.5 rows modify the IC driver diagram and pin names). The LCSC titles read ‘BB-’ for C21708551 (brand ABOC) and ‘BL-’ for C5119290 (also brand ABOC), so the same device is sold under both prefixes. Pin order 1 DI, 2 CI, 3 GND, 4 VCC, 5 CO, 6 DO. LCSC stock 0 for both SKUs on 2026-10-15.

Variants

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

Order codeFaceLensWhite PinsSiliconStatusFirst seenDatasheet
BB-HBGR32L-3-TRB-8 — clear — 6 — active 2017-11-09 Ver2.0Ver2.2 ↗
LCSC C21708551, stock 0. Ver2.0 sheet (2021-04-07).
BL-HBGR32L-3-TRB-8 — clear — 6 — active 2017-11-09 Ver2.0Ver2.2 ↗
LCSC C5119290, stock 0. Ver2.2 sheet (2021-03-31), listed as SMD-6P 5x5.

Pinout

BB-HBGR32L-3-TRB-8BL-HBGR32L-3-TRB-8
BB-HBGR32L-3-TRB-8 5050 package, top and side viewPin 1 is ringed. pin 1 DIN (data in), pin 2 CIN (clock in), pin 3 GND (ground), pin 4 VCC (power), pin 5 COUT (clock out), pin 6 DOUT (data out).11 DINdata in22 CINclock in33 GNDground44 VCCpower55 COUTclock out66 DOUTdata out5.3 mm overall5.0 mmtop view1.6 mmside view
  • Data
  • Clock
  • Ground
  • Power
  • Pin 1
  • Cut corner

Outline and pin positions checked against the manufacturer datasheet (C21708551 BB-HBGR32L-3-TRB-8 Ver2.0 p1). Top view: 1 DI, 2 CI, 3 GND down the left edge, 4 VCC, 5 CO, 6 DO up the right edge; the cut corner is at pin 1. The three-pad rows are 4.5 mm tall overall; the middle pad is shorter than the outer two on the sheet, a uniform pad is drawn. What this means.

  1. 1 DIN data in
  2. 2 CIN clock in
  3. 3 GND ground
  4. 4 VCC power
  5. 5 COUT clock out
  6. 6 DOUT data out

Protocol — ABOC HBGR32L two-wire IC (18 mA)

This is an SPI part: the clock is explicit, so there is no fixed bit period. The frame layout is shown below.

ABOC HBGR32L two-wire IC (18 mA) SPI frameABOC HBGR32L two-wire IC (18 mA) clocked frame: start frame, one 32-bit LED frame per pixel with brightness and colour bytes, and an end frame, plus data and clock waveforms1 · Frame stream (data clocked on CLK)Start frame32 × 0LED 132 bitsLED 232 bits…LED N32 bitsEnd frameclock ≥ N/2 edgeseach LED forwards what it does not keep on DO / CO2 · One LED frame: 32 bits, MSB first111brightch 1 8ch 2 8ch 3 83 marker bits (111), 5-bit global brightness 0–31, then 8-bit channels3 · DATA and CLK, first 8 bits of an LED frameDATACLK11110010111 markerbrightness bits 4..0data changes while CLK is low,LED samples on the rising edgeno fixed bit period: clock rateis set by the host
Frame layout: APA102-family 32-bit LED frames convention, see the protocol notes for end-frame differences

Compatibility

  • protocol compatible APA102

    The frame is APA102-shaped (32 zero bits, 111 + 5-bit brightness + three 8-bit values, 32 one bits) and the sheet shows the same SDI/CKI waveform. The two sheets disagree about the colour order, and neither names APA102, so only the frame structure is compared. 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.

  • 2017-11-09 datasheet revision Bright LED BL-HBGR32L-3-TRB-8 revision table: 'Initial Released 1.0 2017/11/9' ↗ day
  • 2019-11-20 datasheet revision Bright LED BB-HBGR32L-3-TRB-8 revision table: 'Initial Released 1.0 2019/11/20' ↗ 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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