← 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 GND matches pin 2; the tab's description is merged into that pin rather than dropped.

Ray ·45bf12d068 · ·parent 75dec6a
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": "GND(TAB)",-   "detail": "page.json describes pin \"TAB\" (GND(TAB)) 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": "GND",    "type": "power_in",-   "description": "Common ground reference for both input and output. Internally tied to the DPAK exposed tab, which also serves as the thermal path (RthJC = 8 degC/W).",+   "description": "Common ground reference for both input and output. Internally tied to the DPAK exposed tab, which also serves as the thermal path (RthJC = 8 degC/W). Also the package tab: dPAK exposed metal tab. Internally connected to pin 2 (GND) and used as the primary heat-sinking surface; solder to a copper pour for thermal dissipation.",    "is_pin1": false,    "source": {     "geometry": "TO-252-2.kicad_mod",
page.json+2−8
@@ -15,7 +15,7 @@     "mpn": "L78M08CDT-TR",     "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/l78m08cdt-tr.pdf",@@ -42,19 +42,13 @@         "number": "2",         "name": "GND",         "type": "power_in",-        "description": "Common ground reference for both input and output. Internally tied to the DPAK exposed tab, which also serves as the thermal path (RthJC = 8 degC/W)."+        "description": "Common ground reference for both input and output. Internally tied to the DPAK exposed tab, which also serves as the thermal path (RthJC = 8 degC/W). Also the package tab: dPAK exposed metal tab. Internally connected to pin 2 (GND) and used as the primary heat-sinking surface; solder to a copper pour for thermal dissipation."       },       {         "number": "3",         "name": "OUTPUT",         "type": "power_out",         "description": "Regulated +8 V output. Delivers up to 500 mA with internal current limit (Isc ~ 300 mA at Vi = 35 V, Iscp ~ 700 mA peak). A 0.1 uF ceramic to GND at the pin is recommended for stability."-      },-      {-        "number": "TAB",-        "name": "GND(TAB)",-        "type": "power_in",-        "description": "DPAK exposed metal tab. Internally connected to pin 2 (GND) and used as the primary heat-sinking surface; solder to a copper pour for thermal dissipation."       }     ],     "provenance": {