8002B

@@ -36,6 +36,20 @@ - Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm` - 3D model: SOP-8 (KiCad packages3D, STEP) +## 3D model downloads++Two STEP files. Same geometry, different body top:++| File | Size | Use it when |+|---|---|---|+| [`8002b.step`](8002b.step) | 122 KB | You want the bare part, or you mark your own boards. |+| [`8002b-etched.step`](8002b-etched.step) | 1.7 MB | You want the part with `8002B` already on it. |++The marking in the etched file is real recessed geometry cut into the solid, not a+texture or a decal: 410 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:

@@ -1,6 +1,6 @@ {   "slug": "8002b",-  "version": "0.1.0",+  "version": "0.2.0",   "type": "component",   "description": "IDCHIP Audio Power OpAmps, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",   "tags": [

@@ -4,7 +4,7 @@   "slug": "8002b",   "title": "8002B",   "brief": "IDCHIP Audio Power OpAmps, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",-  "version": "0.1.0",+  "version": "0.2.0",   "license": "CC-BY-SA-4.0",   "tags": [     "component",@@ -34,37 +34,37 @@         "number": "1",         "name": "SD",         "type": "input",-        "description": "Shutdown control input. Logic HIGH (VIH = 1.5V to VDD) puts the amplifier into shutdown (IOFF \u2248 0.6\u00b5A typical); logic LOW (VIL = 0 to 1V) enables normal operation. Must NOT be left floating - tie to GND when the shutdown feature is unused."+        "description": "Shutdown control input. Logic HIGH (VIH = 1.5V to VDD) puts the amplifier into shutdown (IOFF ≈ 0.6µA typical); logic LOW (VIL = 0 to 1V) enables normal operation. Must NOT be left floating - tie to GND when the shutdown feature is unused."       },       {         "number": "2",         "name": "BYP",         "type": "passive",-        "description": "Bypass pin - internal VDD/2 mid-supply reference output. Connect an external bypass capacitor (typically 1\u00b5F) from this pin to GND to filter the mid-supply bias and improve PSRR / low-frequency THD+N."+        "description": "Bypass pin - internal VDD/2 mid-supply reference output. Connect an external bypass capacitor (typically 1µF) from this pin to GND to filter the mid-supply bias and improve PSRR / low-frequency THD+N."       },       {         "number": "3",         "name": "NC",         "type": "unconnected",-        "description": "No connection / no internal function. Datasheet notes '\u82af\u7247\u7b2c3\u811a\u65e0\u529f\u80fd' (pin 3 has no function). Note that the typical application schematic labels this pin 'INP' but the pin description table and features list both confirm it is NC on the 8002B variant."+        "description": "No connection / no internal function. Datasheet notes '芯片第3脚无功能' (pin 3 has no function). Note that the typical application schematic labels this pin 'INP' but the pin description table and features list both confirm it is NC on the 8002B variant."       },       {         "number": "4",         "name": "INN",         "type": "input",-        "description": "Inverting analog audio input. Signal is AC-coupled through Ci (typ. 0.39\u00b5F) and Ri (typ. 20k\u03a9). With feedback resistor Rf (typ. 68k\u03a9), the differential closed-loop gain is AVD = 2*(Rf/Ri)."+        "description": "Inverting analog audio input. Signal is AC-coupled through Ci (typ. 0.39µF) and Ri (typ. 20kΩ). With feedback resistor Rf (typ. 68kΩ), the differential closed-loop gain is AVD = 2*(Rf/Ri)."       },       {         "number": "5",         "name": "VO1",         "type": "output",-        "description": "Bridge-tied load audio output 1. Connect one terminal of the speaker between VO1 and VO2. Output is DC-biased at VDD/2 - no output coupling capacitor required. Delivers up to 2.8W into 4\u03a9 BTL at 5V (THD+N=10%)."+        "description": "Bridge-tied load audio output 1. Connect one terminal of the speaker between VO1 and VO2. Output is DC-biased at VDD/2 - no output coupling capacitor required. Delivers up to 2.8W into 4Ω BTL at 5V (THD+N=10%)."       },       {         "number": "6",         "name": "VDD",         "type": "power_in",-        "description": "Positive supply voltage input. Operating range 2.2V to 5.5V (absolute max 6.5V). Bypass with 10\u00b5F + 0.1\u00b5F ceramic capacitors placed close to the pin. Quiescent current IDD \u2248 10mA (no load)."+        "description": "Positive supply voltage input. Operating range 2.2V to 5.5V (absolute max 6.5V). Bypass with 10µF + 0.1µF ceramic capacitors placed close to the pin. Quiescent current IDD ≈ 10mA (no load)."       },       {         "number": "7",@@ -76,7 +76,7 @@         "number": "8",         "name": "VO2",         "type": "output",-        "description": "Bridge-tied load audio output 2. Connect the other terminal of the speaker between VO2 and VO1. Internally driven 180\u00b0 out of phase with VO1 by a fixed unity-gain inverter (set by two internal 20k\u03a9 resistors), giving 4\u00d7 the output power of a single-ended amplifier at the same supply."+        "description": "Bridge-tied load audio output 2. Connect the other terminal of the speaker between VO2 and VO1. Internally driven 180° out of phase with VO1 by a fixed unity-gain inverter (set by two internal 20kΩ resistors), giving 4× the output power of a single-ended amplifier at the same supply."       }     ],     "provenance": {@@ -150,9 +150,9 @@     "docs/hero.png",     "docs/8002b-datasheet.pdf",     "viewers/symbol.html",-    "viewers/footprint.html"+    "viewers/footprint.html",+    "pads.json"   ],-  "visibility": {-    "public": true-  }+  "visibility": "public",+  "description": "IDCHIP Audio Power OpAmps, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D." }\ No newline at end of file