uc3843an

@@ -0,0 +1,50 @@+# UC3843AN++**XBLW** · AC-DC Controllers and Regulators · DIP-8++UC3843AN from XBLW, in a DIP-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 | COMP | output | Error amplifier compensation pin. Connect external compensation components to this pin to modify the error amplifier output. |+| 2 | VFB | input | Voltage feedback pin. Inverting input to the internal error amplifier. VFB is used to control the power converter voltage-feedback loop for stability. |+| 3 | ISENSE | input | Primary-side current sense pin. Connect to current sensing resistor. The PWM uses this signal to terminate the OUTPUT switch conduction. |+| 4 | RT/CT | passive | Oscillator timing pin. Connect timing resistor RRT to VREF and timing capacitor CCT to GROUND from this pin to set the switching frequency and maximum output ratio. Max frequency up to 500 kHz. |+| 5 | GND | power_in | Ground reference for the device. |+| 6 | OUTPUT | output | Gate drive output for the external MOSFET. Peak currents of up to 1 A are sourced and sunk by this pin. |+| 7 | VCC | power_in | Positive power supply input to the device. Absolute maximum 30 V; typical operating around 12-25 V. UVLO startup threshold ~8.4 V. |+| 8 | VREF | power_out | 5 V reference voltage output. Used to provide charging current to the oscillator timing capacitor through the timing resistor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | XBLW |+| Package | DIP-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `UC3843AN`+- `UC3843ANBDTR`++## CAD (KiCad official)++- Symbol: `UC3843AN`+- Footprint: `Package_DIP:DIP-8_W7.62mm`+- 3D model: DIP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [XBLW datasheet](docs/uc3843an-datasheet.pdf) (11 pp, sha256 `a963465d88941e22`, 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](docs/uc3843an-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "uc3843an",+  "version": "0.1.0",+  "type": "component",+  "description": "XBLW AC-DC Controllers and Regulators, DIP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "pmic",+    "uc3843an"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "uc3843an.kicad_sym",+    "uc3843an.kicad_mod",+    "uc3843an.glb",+    "uc3843an.step",+    "uc3843an.lbr",+    "docs/hero.png",+    "docs/uc3843an-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file