component
AL8861Y-13
Public Made by Adomby adom
Diodes Incorporated LED Drivers, SOT-89-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+46@@ -0,0 +1,46 @@+# AL8861Y-13++**Diodes Incorporated** · LED Drivers · SOT-89-5++AL8861Y-13 from Diodes Incorporated, in a SOT-89-5. 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 | LX | output | Drain of the internal 40V NDMOS switching MOSFET. Connect to the inductor/freewheel-diode node of the buck power stage. RDS(on) ~0.2Ω, peak inductor current limit 2A. |+| 2 | GND | power_in | Device ground (0V) reference for the internal regulator and control circuitry. |+| 3 | VSET | input | Multi-function on/off and brightness control input. Floats internally to ~4.5V via a 1.4µA source; drive <0.2V to shut down, 0.3-2.5V DC for 0-100% analog dimming (5-100% recommended), or apply PWM (f<500Hz, 1-100% duty) via an open-drain transistor. A capacitor to GND sets soft-start (default 0.1ms, ~1.5ms per nF). Absolute max 6V. |+| 4 | ISENSE | input | High-side current-sense input. Connect sense resistor RS between VIN and this pin to program the nominal average LED current: IOUT(NOM) = 0.1V / RS (100mV mean sense threshold, ±13% hysteresis). |+| 5 | VIN | power_in | Input supply, 4.5V to 40V (absolute max 42V). Decouple to GND with a ≥10µF X7R ceramic capacitor placed close to the device. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Diodes Incorporated |+| Package | SOT-89-5 |+| Category | LED-drv |+| Pins | 5 |++## Ordering variants++- `AL8861Y-13Y-13`+- `AL8861Y-13WT-7`+- `AL8861Y-13MP-13`++## CAD (KiCad official)++- Symbol: `AL8861Y-13`+- Footprint: `Package_TO_SOT_SMD:SOT-89-3`+- 3D model: SOT-89-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Diodes Incorporated datasheet](https://www.diodes.com/assets/Datasheets/AL8861Y-13.pdf) (18 pp, sha256 `b1b15e2023cebf87`, retrieved 2026-08-17, tier: manufacturer)+- **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/al8861y-13-datasheet.pdf)
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