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docs al8861qmp-13: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers al8861qmp-13: viewers · Ray 2mo ago
al8861qmp-13-etched.fit.json al8861qmp-13: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
al8861qmp-13-etched.glb al8861qmp-13: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
al8861qmp-13-etched.step al8861qmp-13: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
al8861qmp-13.glb Publish 0.1.0 · Ray 2mo ago
al8861qmp-13.kicad_mod Publish 0.1.0 · Ray 2mo ago
al8861qmp-13.kicad_sym Publish 0.1.0 · Ray 2mo ago
al8861qmp-13.lbr al8861qmp-13: factory component page (tier=lcsc) · Ray 2mo ago
al8861qmp-13.step Publish 0.1.0 · Ray 2mo ago
package.json Publish 0.1.0 · Ray 2mo ago
page.json al8861qmp-13: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 1mo ago
README.md al8861qmp-13: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

AL8861QMP-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)
  • 3D model files: al8861qmp-13-etched.step / al8861qmp-13-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); al8861qmp-13.step / al8861qmp-13.glb are the bare package body.

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).

Datasheet PDF