component
AL8861QMP-13
Public Unreviewedby Ray
Diodes Incorporated LED Drivers, MSOP-8-EP. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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markdownAL8861QMP-13
Diodes Incorporated · LED Drivers · MSOP-8-EP
AL8861QMP-13 from Diodes Incorporated, in a MSOP-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 | ISENSE | input | Current sense input. Connect resistor RS from this pin to VIN to define nominal average output current (IOUT_NOM = 0.1/RS). Mean current-sense threshold is 100mV typical. |
| 2 | GND | power_in | Ground (0V) reference. |
| 3 | GND | power_in | Ground (0V) reference. |
| 4 | VSET | input | Multi-function On/Off, brightness control and soft-start pin. Float for normal operation; drive <0.2V to shut down; DC voltage 0.3V-2.5V for analog dimming (5%-100% of IOUT_NOM); PWM drive (for f<500Hz) for 1%-100% linear dimming; a capacitor to GND sets soft-start time (~1.5ms/nF, default 0.1ms). |
| 5 | LX | output | Drain of internal 40V NDMOS switch. Switching node connecting to inductor/freewheeling diode; RDS(on) ~0.2Ω, current limit 2A typ. |
| 6 | LX | output | Drain of internal 40V NDMOS switch. Parallel-bonded with pin 5 for current-carrying capability. |
| 7 | N/C | unconnected | No connection. Leave floating. |
| 8 | VIN | power_in | Input voltage supply (4.5V to 40V, absolute max 42V). Decouple to GND with a 10µF or larger X7R ceramic capacitor placed close to the device. |
| EP | EP | power_in | Exposed thermal pad. Connect to GND and thermal mass for enhanced thermal impedance. Should not be used as an electrical ground conduction path. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | MSOP-8-EP |
| Category | LED-drv |
| Pins | 9 |
Ordering variants
Same part, different packaging or reel option.
AL8861QMP-13
CAD (KiCad official)
- Symbol:
AL8861QMP-13 - Footprint:
Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm - 3D model: MSOP-8-EP (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (15 pp, sha256
c6a5a3dadc3a438c, 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).