Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

NCP1654BD200R2G

onsemi · AC-DC Controllers and Regulators · SOIC-8

NCP1654BD200R2G 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 GND power_in Device ground reference. Return path for VCC supply, gate drive current, and all internal analog/digital circuitry.
2 Vin output Multiplier Voltage output (VM). Provides the voltage used for PFC duty-cycle modulation; input impedance is proportional to an external resistor RM connected here. An external capacitor CM to this pin selects average current mode; without CM, the device operates in peak current mode.
3 CS input Current Sense Input. Sources a current ICS proportional to the boost inductor current IL; used for overcurrent protection (OCP, threshold ~200 μA), overpower limitation (OPL) and PFC duty-cycle modulation. When ICS exceeds ~200 μA the drive output is disabled.
4 VBO input Brown-Out / Input voltage sense. Connect to a resistor divider from the rectified input voltage to ground with a filter capacitor; measures a voltage proportional to the RMS input for brown-out detection (VBOL 0.7 V typ, VBOH 1.3 V typ), overpower limitation and duty-cycle modulation. When VBO < VBOL the driver is held low until VBO > VBOH.
5 Vcontrol bidirectional Control Voltage / Soft-Start pin. Voltage on this pin (typ 0.6-3.6 V) directly controls the input impedance of the regulation loop; connect external type-2 compensation network here to limit Vcontrol bandwidth below ~20 Hz for near-unity power factor. Also implements soft-start; no drive output until Vcontrol > Vcontrol(min).
6 VFB input Feedback / Shutdown input. Receives feedback signal proportional to the PFC output voltage for regulation, overvoltage protection (OVP trips at 105% VREF), and undervoltage protection (UVP). When VFB < 8% VREF the device enters low-consumption shutdown.
7 VCC power_in Positive supply voltage for the IC. Startup threshold (VCC rising) 10.5 V typ, UVLO turn-off 9.0 V typ; operating range after start-up is 9 V to 20 V. Absolute max continuous VCC is +20 V (+25 V transient).
8 DRV output Totem-pole gate Drive Output. ±1.5 A peak source/sink capability suitable for directly driving high gate-charge power MOSFETs. Source resistance 9 Ω typ, sink resistance 6.6 Ω typ.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • NCP1654BD200R2G
  • NCP1654BD200R2GBD65R2G
  • NCP1654BD200R2GBD133R2G

CAD (KiCad official)

  • Symbol: NCP1654BD200R2G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ncp1654bd200r2g-etched.step / ncp1654bd200r2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncp1654bd200r2g.step / ncp1654bd200r2g.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ncp1654bd200r2g.step 122 KB You want the bare part, or you mark your own boards.
ncp1654bd200r2g-etched.step 3.2 MB You want the part with NCP1654BD200R2G already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 771 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: onsemi datasheet (25 pp, sha256 0c75ab135913f4c0, retrieved 2026-08-17, tier: manufacturer)
  • 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