component

DK2649CC

Public Made by Adom

by adom

Shenzhen DongKe Semicon AC-DC Controllers & Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower supply chipdk2649ccfactory-2.0.0extractor-text

Verified DK2649CC

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, 8 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: DK2649CC · SOP-8 · 8 pins
  • ✓copper: 8 copper pads, none touching another net
  • ✓datasheet: all 8 pin names found in the 9-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOIC-8_3.9x4.9mm_P1.27mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-8t90xff4/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: 8 pins = 8 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ dk2649cc.kicad_sym✓ dk2649cc.kicad_mod✓ dk2649cc.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray
viewers dk2649cc: viewers · Ray
dk2649cc-etched.glb Publish 0.1.0 · Ray
dk2649cc-etched.step dk2649cc: factory component page (tier=lcsc) · Ray
dk2649cc-hero.glb dk2649cc: hero GLB from the etched model (keeps the MPN mark) · Ray
dk2649cc-hero.overlay.json Publish 0.1.0 · Ray
dk2649cc.glb Publish 0.1.0 · Ray
dk2649cc.kicad_mod Publish 0.1.0 · Ray
dk2649cc.kicad_sym Publish 0.1.0 · Ray
dk2649cc.lbr Publish 0.1.0 · Ray
dk2649cc.step Publish 0.1.0 · Ray
package.json Publish 0.1.0 · Ray
page.json Set visibility: public · Ray
README.md Publish 0.1.0 · Ray
verification.json Verified: Published by the parts factory: tier lcsc, 8 pins · Ray

DK2649CC

Shenzhen DongKe Semicon · AC-DC Controllers & Regulators · SOP-8

DK2649CC from Shenzhen DongKe Semicon, in a SOP-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 GND power_in Ground reference pin for the controller, which the datasheet lists as the chip's ground terminal.
2 VDD power_in Supply pin with an operating range of 9 V to 34 V (typ. 17 V) for AC input 85 V to 265 V, with UVLO turn-off at 15.5 V to 17 V and overvoltage protection at 35 V to 38 V.
3 FB input Feedback input where FB falling below 1.6 V enters burst (skip) mode and FB open-circuit voltage is 4.8 V to 6.2 V.
4 CS input Current sense input for cycle-by-cycle over-current protection at 0.71 V to 0.8 V, with 270 ns leading-edge blanking and 40 kΩ input impedance.
5 DRAIN passive Drain of the built-in 650 V high-voltage power MOSFET, which should have enlarged, tinned copper area for heat dissipation and at least 1.5 mm clearance from low-voltage parts.
6 DRAIN passive Drain of the built-in 650 V high-voltage power MOSFET, which should have enlarged, tinned copper area for heat dissipation and at least 1.5 mm clearance from low-voltage parts.
7 DRAIN passive Drain of the built-in 650 V high-voltage power MOSFET, which should have enlarged, tinned copper area for heat dissipation and at least 1.5 mm clearance from low-voltage parts.
8 DRAIN passive Drain of the built-in 650 V high-voltage power MOSFET, which should have enlarged, tinned copper area for heat dissipation and at least 1.5 mm clearance from low-voltage parts.

Key specifications

Parameter Value
Manufacturer Shenzhen DongKe Semicon
Package SOP-8
Category Power Supply Chip
Pins 8

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Operating temperature range TR -25 125 ℃ 3
Storage temperature range TSTG -55 155 ℃ 3
Junction temperature TJ -40 150 ℃ 3
Power MOSFET drain-source voltage VDRAIN_MAX 650 V 3
VDD supply voltage VDD 40 V 3
IDD supply current IDD 10 mA 3
FB input voltage VFB -0.3 7 V 3
CS input voltage VCS -0.3 7 V 3
VDD operating voltage VDD 9 17 34 V AC input 85V-265V 3
Startup current IDD_ST 5 20 uA VDD=11V, test VDD pin current 3
Operating current IOP 0.67 0.83 1 mA VDD=17V, VFB=3V, VCS=0V 3
UVLO turn-on (VDD falling, IC off) threshold Vuvlo(ON) 7 7.7 8.4 V VDD falls to IC off 3
UVLO turn-off (VDD rising, IC on) threshold Vuvlo(OFF) 15.5 16 17 V VDD rises to IC on 3
Frequency-hopping protection voltage VDD_ET 7.7 8.2 8.7 V FB=0V, CS=0V 3
VDD overvoltage protection VOVP 35 35.7 38 V VDD=17V, VCS=0V, VFB=3V, VDD rises until DRAIN frequency disappears 3
FB open-loop voltage VFB_OPEN 4.8 5.55 6.2 V 3
FB short-circuit current IFB_SHORT 0.24 mA VDD=17V, FB shorted to GND 3
Green-mode threshold VTH_GREEN 2.2 V VDD=17V, VCS=0V, VFB=3V, FB falling, DRAIN frequency below 35KHz 3
Burst-mode (frequency hopping) threshold VTH_BM 1.6 V VDD=17V, FB falling 3
Leading-edge blanking time TLEB 270 ns 3
CS pin input impedance ZCS_IN 40 kΩ 3
CS overcurrent protection threshold VTH_OC 0.71 0.77 0.8 V VDD=17V, VFB=3V, CS rising to turn off power MOSFET 3
Overcurrent protection delay TD_OC 120 ns Delay from overcurrent protection to start of MOSFET turn-off 3
Oscillation frequency FOSC 60 65 70 KHz VDD=17V, VFB=3V, VCS=0V 3
Maximum duty cycle DMAX 65 70 85 % VDD=17V, VFB=3.3V, VCS=0V 3
Burst (frequency-hopping) frequency FBURST 25 KHz 3
Frequency dither range ΔFOSC -4 4 % 3
Power MOSFET on-resistance RDS(ON) 1.2 1.3 1.4 Ω 3
Overtemperature protection TOTP 150 ℃ 3

CAD (KiCad official)

  • Symbol: DK2649CC
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: dk2649cc-etched.step / dk2649cc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dk2649cc.step / dk2649cc.glb are the bare package body.

Provenance

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

  • Datasheet: Shenzhen DongKe Semicon datasheet (9 pp, sha256 65f86e8fc8f68b47, 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