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OB6561PXCPA

Public Made by Adom

by adom

OB On Bright Elec AC-DC Controllers and Regulators, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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README.md Initial commit: component/ob6561pxcpa · Ray 1mo ago

OB6561PXCPA

OB On Bright Elec · AC-DC Controllers and Regulators · SOP-8

OB6561PXCPA from OB On Bright Elec, in a SOP-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 INV input Inverting input of the internal error amplifier. Connected to a resistor divider from the system output for regulation feedback. Also used for system open-loop protection.
2 COMP output Output of the error amplifier. A feedback compensation network is placed between COMP and the INV pin to shape the voltage loop response.
3 MULT input Input of the internal multiplier. Connected to the rectified line voltage after the bridge diodes via a resistor divider to provide the sinusoidal reference to the current loop. Analog input range 0 to 7V (absolute max).
4 CS input Current sense input. Connected to the MOSFET source current-sensing node (sense resistor) for cycle-by-cycle current limiting with built-in leading-edge blanking. Analog input range 0 to 7V (absolute max).
5 ZCD input Zero current detection input. When activated, a new switching cycle starts (transition-mode operation). If tied to GND, the device is disabled. Max current 50mA source / -10mA sink.
6 GND power_in Ground reference for the device.
7 GD output Totem-pole gate driver output for driving an external power MOSFET. Features high-state clamping for gate protection.
8 VCC power_in DC supply voltage input. Operating range 9.5V to 28V with UVLO hysteresis; absolute max 30V.

Key specifications

Parameter Value
Manufacturer OB On Bright Elec
Package SOP-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • OB6561PXCPA
  • OB6561PXCPAAP

CAD (KiCad official)

  • Symbol: OB6561PXCPA
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: OB On Bright Elec datasheet (6 pp, sha256 4986c654ff826960, 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