WS2811M

@@ -0,0 +1,44 @@+# WS2811M++**Worldsemi** · LED Drivers · MSOP-8++WS2811M from Worldsemi, in a MSOP-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 PWM LED drive output. Open-drain, 256-level PWM at ~2 kHz. Low-level sink current IOL typ 16.5 mA (15.5-17.5 mA). Output withstands up to 20 V. |+| 2 | OUTG | output | GREEN channel constant-current PWM LED drive output. Open-drain, 256-level PWM. Low-level sink current typ 16.5 mA. Output rated to 20 V. |+| 3 | OUTB | output | BLUE channel constant-current PWM LED drive output. Open-drain, 256-level PWM. Low-level sink current typ 16.5 mA. Output rated to 20 V. |+| 4 | GND | power_in | Common signal and power ground (VSS = 0 V reference). |+| 5 | DO | output | Cascaded serial data output. Forwards the reshaped single-wire data stream (minus the first 24 bits consumed by this IC) to the DIN of the next device. Drive capability Idout ≥ 10 mA at VO = 0.4 V. |+| 6 | DIN | input | Single-wire serial data input. Accepts NRZ-coded 24-bit RGB data at up to 800 Kbps. VIH ≥ 0.7·VDD, VIL ≤ 0.3·VDD, hysteresis typ 0.35 V. Port withstands up to 9.5 V. |+| 7 | NC | unconnected | No connect. Leave floating. |+| 8 | VDD | power_in | Logic supply for the IC, 3.5 V to 5.5 V absolute maximum. An internal shunt regulator allows operation from supplies up to ~24 V by inserting a series resistor from the higher rail to VDD (e.g. 3.3 kΩ from a 12 V rail); no external Zener required. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Worldsemi |+| Package | MSOP-8 |+| Category | LED-drv |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `WS2811M`+- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`+- 3D model: MSOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Worldsemi datasheet](docs/ws2811m-datasheet.pdf) (8 pp, sha256 `6e9028cd9758beb6`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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).++[Datasheet PDF](docs/ws2811m-datasheet.pdf)

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