component
WS2814A
Public Made by Adomby adom
Worldsemi LED Drivers, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownWS2814A
Worldsemi · LED Drivers · SOP-8
WS2814A from Worldsemi, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUTR | output | Red channel constant-current LED driver output. Open-drain low-side sink, typ 16.5 mA (15.5-17.5 mA), withstands up to 20 V on the pin. PWM duty ratio set by the received 8-bit R data. |
| 2 | OUTG | output | Green channel constant-current LED driver output. Open-drain low-side sink, typ 16.5 mA, 20 V withstand. PWM duty ratio set by the received 8-bit G data. |
| 3 | OUTB | output | Blue channel constant-current LED driver output. Open-drain low-side sink, typ 16.5 mA, 20 V withstand. PWM duty ratio set by the received 8-bit B data. |
| 4 | GND | power_in | Data and power ground (VSS = 0 V reference for all logic and output-current returns). |
| 5 | DOUT | output | Cascaded data output to the DIN of the next WS2814A in the chain. Push-pull output, low-level sink ≥10 mA at Vo=0.4 V; transmission delay ≤300 ns (DIN→DOUT, CL=15 pF, RL=10 kΩ). Signal is internally reshaped so cascade length is not limited by waveform degradation. |
| 6 | DIN | input | Single-wire NZR serial data input from MCU or upstream WS2814A's DOUT. VIH ≥ 0.7·VDD, VIL ≤ 0.3·VDD, hysteresis ~0.35 V, input capacitance ≤15 pF. Withstands up to 9 V on the pin. First chip captures the initial 32-bit word into its latch and forwards the remainder to DOUT. |
| 7 | VDD | power_in | Logic power supply, 3.7-5.3 V (recommended 4.5-5.5 V for electrical spec). Built-in voltage regulator allows operation from 12 V or 24 V rails via a series dropping resistor (2.7 kΩ typical for 12 V; 8.2 kΩ for 24 V per the application circuits). |
| 8 | OUTW | output | White channel constant-current LED driver output. Open-drain low-side sink, 20 V withstand. PWM duty ratio set by the received 8-bit W data (transmitted first in the 32-bit WRGB frame). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Worldsemi |
| Package | SOP-8 |
| Category | LED-drv |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
WS2814A - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ws2814a-etched.step/ws2814a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ws2814a.step/ws2814a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Worldsemi datasheet (7 pp, sha256
b81a80f2a0cff069, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).