SG3525M - Commit - Adom Wiki

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pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left)

Ray ·3234a7d93d ·2mo ago ·parent d63319c

5 files changed +538−3

package.json+2−1 pads.json+523 page.json+11 sg3525m.lbr+1−1 viewers/footprint.html+1−1

package.json+2−1

@@ -24,6 +24,7 @@     "docs/hero.png",     "docs/sg3525m-datasheet.pdf",     "viewers/symbol.html",-    "viewers/footprint.html"+    "viewers/footprint.html",+    "pads.json"   ] }\ No newline at end of file

pads.jsonadded+523

@@ -0,0 +1,523 @@+{+ "schema": "adom.pads/1",+ "slug": "sg3525m",+ "footprint": "SOIC-16_3.9x9.9mm_P1.27mm",+ "generated_from": {+  "footprint": "SOIC-16_3.9x9.9mm_P1.27mm@sha256:f9b5075740f7816c",+  "pins": "page.json:component.pins",+  "overrides": null+ },+ "pin1": {+  "pad": "1",+  "at": [+   -2.475,+   -4.445+  ],+  "corner": "top-left",+  "source": "silk-marker",+  "derived_from": "SOIC-16_3.9x9.9mm_P1.27mm@sha256:f9b5075740f7816c"+ },+ "pad_count": 16,+ "symbol_pins": [+  "1",+  "10",+  "11",+  "12",+  "13",+  "14",+  "15",+  "16",+  "2",+  "3",+  "4",+  "5",+  "6",+  "7",+  "8",+  "9"+ ],+ "paste_apertures": 0,+ "issues": [],+ "pads": [+  {+   "pad": "1",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    -2.475,+    -4.445+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "1",+   "name": "Inv. Input",+   "type": "input",+   "description": "Inverting input of the internal error amplifier. Typical input offset 1.5mV, bias current ~1µA, common-mode range up to VREF (5.1V). Used with the compensation pin to close the voltage-regulation loop.",+   "is_pin1": true,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "2",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    -2.475,+    -3.175+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "2",+   "name": "Noninv. Input",+   "type": "input",+   "description": "Non-inverting input of the internal error amplifier. Common-mode range 1.5V to 5.2V, allowing direct connection to the on-chip 5.1V reference without an external divider.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "3",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    -2.475,+    -1.905+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "3",+   "name": "Sync",+   "type": "bidirectional",+   "description": "Oscillator sync pin. Used to synchronize the internal oscillator to an external clock (threshold 1.2-2.8V, sink ~1.3mA at 3.5V) or to slave/master multiple SG3525s together.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "4",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    -2.475,+    -0.635+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "4",+   "name": "OSC. Output",+   "type": "output",+   "description": "Oscillator clock output. Delivers a ~4V, 0.6µs-wide clock pulse per cycle, used for scope monitoring or as a sync source for downstream stages.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "5",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    -2.475,+    0.635+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "5",+   "name": "CT",+   "type": "passive",+   "description": "Timing capacitor pin. Connect CT to GND to set the oscillator frequency together with RT (e.g. RT=2kΩ, CT=470pF → ~400kHz; RT=200kΩ, CT=0.1µF → ~60Hz).",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "6",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    -2.475,+    1.905+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "6",+   "name": "RT",+   "type": "passive",+   "description": "Timing resistor pin. Connect RT to GND to program the oscillator charging current (charging current up to 5mA) and hence frequency, in conjunction with CT.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "7",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    -2.475,+    3.175+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "7",+   "name": "Discharge",+   "type": "passive",+   "description": "CT discharge pin. A resistor placed between CT (pin 5) and Discharge sets the dead-time (blanking) between Output A and Output B pulses.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "8",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    -2.475,+    4.445+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "8",+   "name": "Soft-Start",+   "type": "passive",+   "description": "Soft-start capacitor pin. A ~50µA (typ 51µA, 25-80µA) internal source charges an external cap here to slowly ramp the PWM duty cycle at start-up; discharged low (<0.7V) during shutdown.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "9",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    2.475,+    4.445+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "9",+   "name": "Compensation",+   "type": "output",+   "description": "Error-amplifier output / PWM comparator input. External RC network from this pin sets the loop compensation. PWM zero duty at ~0.9V, max duty (≥45%) at ~3.2V.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "10",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    2.475,+    3.175+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "10",+   "name": "Shutdown",+   "type": "input",+   "description": "Active-high shutdown input. Driving this pin above ~0.8V (threshold 0.6-1.0V) inhibits both outputs and discharges the soft-start cap, providing pulse-by-pulse current limit or emergency shutdown. Input current ~0.3mA at 2.5V.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "11",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    2.475,+    1.905+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "11",+   "name": "Output A",+   "type": "output",+   "description": "Totem-pole PWM output A. Sources/sinks >150mA (peak 400mA); VOH ≥18V at 20mA source, VOL ≤0.4V at 20mA sink. Alternates with Output B at half the oscillator frequency for push-pull/bridge drive.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "12",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    2.475,+    0.635+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "12",+   "name": "Ground",+   "type": "power_in",+   "description": "Signal / logic ground return for the reference, oscillator and control circuitry. Tie to system ground; often decoupled separately from the VC power ground in switching supplies.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "13",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    2.475,+    -0.635+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "13",+   "name": "VC",+   "type": "power_in",+   "description": "Collector supply for the output totem-pole drivers. Absolute max 40V; usually tied to VCC or a separate driver rail sized for the gate-drive current (>150mA continuous).",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "14",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    2.475,+    -1.905+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "14",+   "name": "Output B",+   "type": "output",+   "description": "Totem-pole PWM output B, complementary to Output A. Same drive characteristics (>150mA source/sink, 400mA peak). NOR-gated logic guarantees a low ('off') level during dead-time or shutdown.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "15",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    2.475,+    -3.175+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "15",+   "name": "VCC",+   "type": "power_in",+   "description": "Main chip supply. Operating range 8-35V with UVLO threshold ~7V (6-8V). Typical ICC 12mA, max 20mA at 35V. Decouple locally with 0.1µF.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  },+  {+   "pad": "16",+   "kind": "smd",+   "shape": "roundrect",+   "at": [+    2.475,+    -4.445+   ],+   "rot": 0.0,+   "size": [+    1.95,+    0.6+   ],+   "layers": [+    "F.Cu",+    "F.Mask",+    "F.Paste"+   ],+   "thermal": false,+   "pin": "16",+   "name": "Vref",+   "type": "power_out",+   "description": "Internal 5.1V ±1% reference output. Sources up to 20mA (short-circuit ~80mA). Decouple with 0.1µF to GND; can be used as bias for the error-amp non-inverting input.",+   "is_pin1": false,+   "source": {+    "geometry": "SOIC-16_3.9x9.9mm_P1.27mm.kicad_mod",+    "meaning": "page.json:component.pins",+    "correspondence": "kicad: symbol pin number == pad name"+   }+  }+ ]+}\ No newline at end of file

page.json+11

@@ -144,6 +144,17 @@     "viewers": {       "symbol": "viewers/symbol.html",       "footprint": "viewers/footprint.html"+    },+    "pin1": {+      "pad": "1",+      "at": [+        -2.475,+        -4.445+      ],+      "corner": "top-left",+      "source": "silk-marker",+      "derived_from": "SOIC-16_3.9x9.9mm_P1.27mm@sha256:f9b5075740f7816c",+      "mark": "drawn"     }   },   "metadata": {

sg3525m.lbr+1−1

@@ -78,7 +78,7 @@   <wire x1="2.0600" y1="-5.0600" x2="-2.0600" y2="-5.0600" width="0.1200" layer="21"/>   <text x="0" y="6.020" size="1.27" layer="25" align="bottom-center">&gt;NAME</text>   <text x="0" y="-6.020" size="1.27" layer="27" align="top-center">&gt;VALUE</text>-</package>+<!--adom-pin1--><polygon width="0.0500" layer="21"><vertex x="-2.6000" y="5.0100"/><vertex x="-2.8400" y="5.3400"/><vertex x="-2.3600" y="5.3400"/></polygon></package> </packages> <symbols> <symbol name="SG3525M">

viewers/footprint.html+1−1

@@ -23,7 +23,7 @@ rect.pad.hi{stroke:var(--hi);stroke-width:.15;paint-order:stroke} #tip .td{font-size:11px;color:var(--ink);margin-top:5px;line-height:1.4} </style></head><body> <div class=bar><span class=h>PCB footprint</span><span class=sp></span><button class="lyrtog on" data-lyr="copper"><span class="d" style="background:#e35d5d"></span>Copper</button><button class="lyrtog on" data-lyr="silk"><span class="d" style="background:#e6edf3"></span>Silkscreen</button><button class="lyrtog" data-lyr="fab"><span class="d" style="background:#8b949e"></span>Fab</button><button class="lyrtog" data-lyr="courtyard"><span class="d" style="background:#bc8cff"></span>Courtyard</button></div>-<div class=stage id=stage><svg xmlns='http://www.w3.org/2000/svg' viewBox='-4.100 -5.600 8.200 11.200' style='width:100%;height:100%'><line class='ly-silk' x1='-2.060' y1='-5.060' x2='2.060' y2='-5.060' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='-2.060' y1='-5.005' x2='-2.060' y2='-5.060' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='-2.060' y1='5.060' x2='-2.060' y2='5.005' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='2.060' y1='-5.060' x2='2.060' y2='-5.005' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='2.060' y1='5.005' x2='2.060' y2='5.060' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='2.060' y1='5.060' x2='-2.060' y2='5.060' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-courtyard' x1='-3.700' y1='-5.000' x2='-2.200' y2='-5.000' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='-3.700' y1='5.000' x2='-3.700' y2='-5.000' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='-2.200' y1='-5.200' x2='2.200' y2='-5.200' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='-2.200' y1='-5.000' x2='-2.200' y2='-5.200' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='-2.200' y1='5.000' x2='-3.700' y2='5.000' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='-2.200' y1='5.200' x2='-2.200' y2='5.000' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='2.200' y1='-5.200' x2='2.200' y2='-5.000' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='2.200' y1='-5.000' x2='3.700' y2='-5.000' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='2.200' y1='5.000' x2='2.200' y2='5.200' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='2.200' y1='5.200' x2='-2.200' y2='5.200' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='3.700' y1='-5.000' x2='3.700' y2='5.000' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='3.700' y1='5.000' x2='2.200' y2='5.000' stroke='#4ade80' stroke-width='0.050'/><rect class='ly-copper pad' data-num='1' data-name='Inv. Input' x='-3.450' y='-4.745' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='-4.445' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>1</text><rect class='ly-copper pad' data-num='2' data-name='Noninv. Input' x='-3.450' y='-3.475' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='-3.175' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>2</text><rect class='ly-copper pad' data-num='3' data-name='Sync' x='-3.450' y='-2.205' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='-1.905' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>3</text><rect class='ly-copper pad' data-num='4' data-name='OSC. Output' x='-3.450' y='-0.935' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='-0.635' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>4</text><rect class='ly-copper pad' data-num='5' data-name='CT' x='-3.450' y='0.335' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='0.635' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>5</text><rect class='ly-copper pad' data-num='6' data-name='RT' x='-3.450' y='1.605' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='1.905' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>6</text><rect class='ly-copper pad' data-num='7' data-name='Discharge' x='-3.450' y='2.875' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='3.175' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>7</text><rect class='ly-copper pad' data-num='8' data-name='Soft-Start' x='-3.450' y='4.145' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='4.445' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>8</text><rect class='ly-copper pad' data-num='9' 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