component
AL8843QSP-13
Public Made by Adomby adom
Diodes Incorporated LED Drivers, SOIC-8-EP. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+48@@ -0,0 +1,48 @@+# AL8843QSP-13++**Diodes Incorporated** · LED Drivers · SOIC-8-EP++AL8843QSP-13 from Diodes Incorporated, in a SOIC-8-EP. 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 | GND | power_in | Ground of IC. Tie to system ground plane. |+| 2 | GND | power_in | Ground of IC. Primary conducted-heat return path; connect to a maximum earth plane with thermal vias to minimize self-heating. |+| 3 | SET | input | Set Nominal Output Current pin. Connect an R_SET resistor from this pin to VIN to define the nominal average LED current; mean current-sense threshold is 100mV (typ) referenced to VIN. Absolute max voltage +42V. |+| 4 | NC | unconnected | No Connection. Leave floating or tie to GND for mechanical support. |+| 5 | CTRL | input | Multi-function on/off, analog and PWM brightness control, and soft-start pin. Float for normal operation; drive <0.3V to shut down output; DC voltage 0.4V-2.5V adjusts output current from 10%-100%; >2.6V gives 100% I_OUT_NOM; also accepts a PWM signal (V_L<0.3V, V_H>2.6V, edges <1us). A capacitor from CTRL to GND sets additional soft-start time (~1.5ms/nF over the 0.1ms default). Absolute max +6V. |+| 6 | VIN | power_in | Input voltage supply, 4.5V-40V (absolute max +42V). Decouple to GND with a 10uF or larger X7R ceramic capacitor placed close to the device. |+| 7 | SW | output | Switch pin - drain of the internal 40V NMOS power switch (R_ON ~0.2Ω @ 100mA). Connect the inductor and freewheeling diode here; minimize track length to reduce EMI. |+| 8 | SW | output | Switch pin - internally tied to pin 7 (drain of internal 40V NMOS power switch). Connect the inductor and freewheeling diode here; minimize track length to reduce EMI. |+| EP | EP | passive | Exposed pad / thermal tab on package bottom. Connect to GND and to a thermal copper mass for enhanced thermal impedance (θJA = 45°C/W with recommended layout). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Diodes Incorporated |+| Package | SOIC-8-EP |+| Category | LED-drv |+| Pins | 9 |++## Ordering variants++- `AL8843QSP-13`++## CAD (KiCad official)++- Symbol: `AL8843QSP-13`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm`+- 3D model: SOIC-8-EP (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Diodes Incorporated datasheet](https://www.diodes.com/assets/Datasheets/AL8843QSP-13.pdf) (18 pp, sha256 `1c5463a652278ea6`, 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/al8843qsp-13-datasheet.pdf)
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