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Contents

README

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NCL30188BDR2G

onsemi · LED Drivers · SOIC-8

NCL30188BDR2G from onsemi, in a SOIC-8. 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 ZCD input Zero Crossing Detection. Connected to the auxiliary winding, this pin detects the core reset event for quasi-resonant operation.
2 VS input Input Voltage Sensing. Observes the input voltage rail for brown-out protection, power factor correction, and valley lockout. Recommended range -0.3 V to +4.0 V (optimal ~1.5 V).
3 COMP passive Filtering Capacitor for power factor correction. Typical capacitor values range from 1 to 4.70 uF.
4 SD input Thermal Foldback and Shutdown. Connect an NTC to program thermal current foldback threshold and slope. A Zener diode can also pull the pin up to stop the controller for adjustable OVP protection.
5 CS input Current Sense. Monitors the primary peak current. Internal current limit threshold V_ILIM = 1.00 V (typ), with 300 ns leading-edge blanking.
6 GND power_in Controller ground pin. Reference for all internal circuitry.
7 DRV output Driver Output to an external MOSFET. Totem-pole driver rated 300 mA / 500 mA with 12 V gate clamp. Max continuous voltage -0.3 to V_DRV(high); max current -300/+500 mA.
8 VCC power_in IC Supply Pin (positive supply). Startup threshold V_CC(on) = 18 V typ; turn-off V_CC(off) = 8.8 V typ. Post-startup operating range 9.4 V to 25.5 V (V_CC(OVP) min). Absolute max 30 V.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category LED-drv
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • NCL30188BDR2G

CAD (KiCad official)

  • Symbol: NCL30188BDR2G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: onsemi datasheet (26 pp, sha256 00bbb60e7bb22ad5, 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