← Commit history

page.json: fold the "TAB" entry into pin 2. On TO-252-2 the tab is not a separate pad - it is that lead - so nothing was ever unconnected, but the page listed it as its own pin and pads.json reported pin-not-in-symbol for a pin that cannot exist. Target chosen because net VOUT matches pin 2; the tab's description is merged into that pin rather than dropped.

Ray ·2ffefd0fbd · ·parent 8154c72
2 files changed +4−17
pads.json+2−9
@@ -24,14 +24,7 @@   "3"  ],  "paste_apertures": 4,- "issues": [-  {-   "kind": "pin-not-in-symbol",-   "pin": "TAB",-   "name": "VOUT",-   "detail": "page.json describes pin \"TAB\" (VOUT) from the datasheet, but the symbol has no such pin, so nothing can connect to it"-  }- ],+ "issues": [],  "pads": [   {    "pad": "1",@@ -84,7 +77,7 @@    "pin": "2",    "name": "VOUT",    "type": "power_out",-   "description": "Regulated 5.0 V output, up to 800 mA. Requires a 10 µF minimum output capacitor for loop stability. Electrically common with the exposed TAB.",+   "description": "Regulated 5.0 V output, up to 800 mA. Requires a 10 µF minimum output capacitor for loop stability. Electrically common with the exposed TAB. Also the package tab: metal heat-sink tab, internally connected to VOUT. Used for thermal dissipation to the PCB copper pour; carries the regulated output potential and must not be tied to ground.",    "is_pin1": false,    "source": {     "geometry": "TO-252-2.kicad_mod",
page.json+2−8
@@ -15,7 +15,7 @@     "mpn": "LD1117DT50CTR",     "manufacturer": "STMicroelectronics",     "package": "TO-252-2(DPAK)",-    "pin_count": 4,+    "pin_count": 3,     "category": "PMIC",     "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",     "datasheet": "https://www.st.com/resource/en/datasheet/ld1117dt50ctr.pdf",@@ -42,19 +42,13 @@         "number": "2",         "name": "VOUT",         "type": "power_out",-        "description": "Regulated 5.0 V output, up to 800 mA. Requires a 10 \u00b5F minimum output capacitor for loop stability. Electrically common with the exposed TAB."+        "description": "Regulated 5.0 V output, up to 800 mA. Requires a 10 \u00b5F minimum output capacitor for loop stability. Electrically common with the exposed TAB. Also the package tab: metal heat-sink tab, internally connected to VOUT. Used for thermal dissipation to the PCB copper pour; carries the regulated output potential and must not be tied to ground."       },       {         "number": "3",         "name": "VIN",         "type": "power_in",         "description": "Unregulated DC input. Absolute maximum 15 V continuous (18 V when IOUT < 20 mA). Typical dropout 1 V at full load; a 100 nF input capacitor is recommended."-      },-      {-        "number": "TAB",-        "name": "VOUT",-        "type": "power_out",-        "description": "Metal heat-sink tab, internally connected to VOUT. Used for thermal dissipation to the PCB copper pour; carries the regulated output potential and must not be tied to ground."       }     ],     "provenance": {