OB6563CPA
Public Made by Adomby adom
OB On Bright Elec AC-DC Controllers and Regulators, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownOB6563CPA
OB On Bright Elec · AC-DC Controllers and Regulators · SOIC-8
OB6563CPA from OB On Bright Elec, 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 | INV | input | Inverting Input of Error Amplifier. Connected to a resistor divider from the system output. Internal reference is 2.5 V. Also used for system open-loop protection (switching stops if INV < ~0.25 V). |
| 2 | COMP | output | Output of Error Amplifier. A feedback compensation network is placed between COMP and INV. Upper clamp ~4.9 V, lower clamp ~2.25 V. Dynamic OVP triggers when current into COMP reaches ~10 uA. |
| 3 | MULT | input | Input of the one-quadrant Multiplier. Connected to the rectified line voltage after the bridge diodes via a resistor divider to provide a sinusoidal reference to the current loop. Linear operating range 0 to 3.5 V. |
| 4 | CS | input | Current Sense input. Connected to the MOSFET current sensing node (sense resistor). Internal 40k/8pF RC filter with leading-edge blanking. Current sense reference clamp ~1.7 V typical. |
| 5 | ZCD | input | Zero Current Detection input, from an auxiliary winding of the boost inductor. When activated a new switching cycle starts. Pulling ZCD below the disable threshold (~250 mV) disables the device. |
| 6 | GND | power_in | Device ground reference for all internal circuitry and the gate driver return. |
| 7 | GD | output | Gate driver output for the external power MOSFET. Totem-pole output with slew-rate control and a built-in ~16 V clamp to protect the MOSFET gate. Rise ~80 ns / Fall ~30 ns into 1 nF. |
| 8 | VCC | power_in | DC supply voltage input. Operating range 11 V to 28 V (9.5 V to 28 V wide range per features). UVLO turn-on ~12 V, turn-off ~9.5 V; internal zener clamp ~33 V. Startup current ~35 uA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | OB On Bright Elec |
| Package | SOIC-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
OB6563CPAOB6563AP
CAD (KiCad official)
- Symbol:
OB6563CPA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ob6563cpa-etched.step/ob6563cpa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ob6563cpa.step/ob6563cpa.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
ob6563cpa.step |
122 KB | You want the bare part, or you mark your own boards. |
ob6563cpa-etched.step |
2.3 MB | You want the part with OB6563CPA already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 539 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: OB On Bright Elec datasheet (13 pp, sha256
384acd2abc63e9f0, 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).