component
OB6561PXCPA
Public Unreviewedby Ray
OB On Bright Elec AC-DC Controllers and Regulators, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownOB6561PXCPA
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.
OB6561PXCPAOB6561PXCPAAP
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).