PN8680PSEC-R1

@@ -0,0 +1,48 @@+# PN8680PSEC-R1++**Wuxi Chipown Micro electronics** · AC-DC Controllers and Regulators · SOP-8++PN8680PSEC-R1 from Wuxi Chipown Micro electronics, 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 | VDD | power_in | Chip supply input pin. Operating range 10-30 V; VDDon typ 16.5 V (14.5-18.5 V), VDDoff typ 8.5 V (7.5-9.5 V), OVP threshold typ 34 V. Provide bulk decoupling from auxiliary winding rectification. |+| 2 | GND | power_in | Device ground reference for all internal analog and digital circuitry as well as the source of the integrated power MOSFET return path. |+| 3 | FB | input | Primary-side feedback input. Senses reflected output voltage from the auxiliary winding via a resistor divider for regulation. VREF_CV typ 2.5 V; FBOVP typ 3.0 V; UVP typ 1.55 V; max cable-compensation current Icable typ 36 uA. |+| 4 | CS | input | Current-sense input for cycle-by-cycle peak-current control and OCP. Connect to a sense resistor from the internal MOSFET source path. VTH_OC typ 500 mV (485-515 mV), VTH_OC_MAX typ 560 mV; also used for CS open/short protection. External resistor on CS sets constant-current point. |+| 5 | SW | power_out | Drain pin of the integrated 650 V smart power MOSFET, connected to the transformer primary winding. Pins 5, 6, 7, 8 are tied together internally for current-handling and heat-sinking. RDS(on) typ 2.5 Ω at ISW=1 A; avalanche pulse current 3 A (Tpulse=100 us). |+| 6 | SW | power_out | Drain of the integrated 650 V power MOSFET, paralleled with pins 5, 7, 8 to form the SW node connecting to the transformer primary. |+| 7 | SW | power_out | Drain of the integrated 650 V power MOSFET, paralleled with pins 5, 6, 8 to form the SW node connecting to the transformer primary. |+| 8 | SW | power_out | Drain of the integrated 650 V power MOSFET, paralleled with pins 5, 6, 7 to form the SW node connecting to the transformer primary. Recommended copper area >20 mm^2 for thermal dissipation (RθJC ~80 °C/W package, ~40 °C/W actual with good copper). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Wuxi Chipown Micro electronics |+| Package | SOP-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `PN8680PSEC-R1PSEC-R1`++## CAD (KiCad official)++- Symbol: `PN8680PSEC-R1`+- 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:** [Wuxi Chipown Micro electronics datasheet](docs/pn8680psec-r1-datasheet.pdf) (11 pp, sha256 `e49a8f29de1494da`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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](docs/pn8680psec-r1-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "pn8680psec-r1",+  "version": "0.1.0",+  "type": "component",+  "description": "Wuxi Chipown Micro electronics AC-DC Controllers and Regulators, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "pmic",+    "pn8680psec-r1"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "pn8680psec-r1.kicad_sym",+    "pn8680psec-r1.kicad_mod",+    "pn8680psec-r1.glb",+    "pn8680psec-r1.step",+    "pn8680psec-r1.lbr",+    "docs/hero.png",+    "docs/pn8680psec-r1-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file