component

DX1244

Public Made by Adom

by adom

Dersem LED Drivers, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentled driversdx1244factory-2.0.0extractor-text

Verified DX1244

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier lcsc, 9 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: DX1244 · ESOP-8 · 9 pins
  • ✓copper: 9 copper pads, none touching another net
  • •datasheet (warn): 1/9 pin names appear NOWHERE in the datasheet text: ['9:EP@p1']
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-51p4os4y/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 9 pins = 9 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 9 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ dx1244.kicad_sym✓ dx1244.kicad_mod✓ dx1244.step
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Contents

README

markdown

DX1244

Dersem · LED Drivers · ESOP-8

DX1244 from Dersem, in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 DIM input PWM dimming input with detection thresholds of 0.5VDD (rising) and 0.3VDD (falling), absolute maximum VDIM -0.3 to 6.0 V, and it defaults to high when left floating.
2 NC unconnected No connection, left floating (悬空).
3 CS1 passive Output current sense pin 1, where the output current is set by the external sense resistor Rcs according to IOUT = 0.137 / Rcs.
4 CS2 passive Output current sense pin 2 for the constant-current output, with CS port voltage limited to -0.3 to 6 V.
5 VDDO power_out 5V supply pin (VDD port absolute maximum -0.3 to 6 V) that the text states powers an external PWM controller only on DX1240 and DX12410.
6 DRAIN passive LED drive pin connected to the internal NMOS drain, with constant-current output voltage rated -0.3 to 40 V for DX1244.
7 VIN power_in Chip supply input with operating range 2.5 to 40 V and absolute maximum -0.3 to 46 V.
8 GND power_in Chip ground.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Dersem
Package ESOP-8
Category LED Drivers
Pins 9

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VIN chip supply voltage (absolute maximum) VIN -0.3 46 V 3
Output port withstand voltage, DX1244 (absolute maximum) VIOUT -0.3 40 V 3
PWM input voltage (absolute maximum) VDIM -0.3 6 V 3
CS port withstand voltage (absolute maximum) VCS -0.3 6 V 3
DRV port withstand voltage (absolute maximum) VDRV -0.3 6 V 3
VDD port withstand voltage (absolute maximum) VDD -0.3 6 V 3
Storage temperature (absolute maximum) TSTG -40 150 ℃ 3
Operating temperature (absolute maximum table) TA -40 125 ℃ 3
HBM ESD rating VESD 2 KV HBM human body discharge model; printed as >2 KV 3
VIN voltage range VIN 3 40 V 4
Constant-current regulation voltage VCS 132 137 142 mV VCC＝5V 4
Output current IOUT 2 A 4

CAD (KiCad official)

  • Symbol: DX1244
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)
  • 3D model files: dx1244-etched.step / dx1244-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dx1244.step / dx1244.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Dersem datasheet (9 pp, sha256 dcd1102efc9dac6e, retrieved 2026-11-05, 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: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF