TX6143

{
 "schema": "adom.pads/1",
 "slug": "tx6143",
 "footprint": "SOT-89-5",
 "generated_from": {
  "footprint": "SOT-89-5@sha256:9abcedfc1a89eea0",
  "pins": "page.json:component.pins",
  "overrides": null
 },
 "pin1": {
  "pad": "1",
  "at": [
   -1.85,
   -1.5
  ],
  "corner": "top-left",
  "source": "silk-marker",
  "derived_from": "SOT-89-5@sha256:9abcedfc1a89eea0"
 },
 "pad_count": 5,
 "symbol_pins": [
  "1",
  "2",
  "3",
  "4",
  "5"
 ],
 "paste_apertures": 0,
 "issues": [],
 "pads": [
  {
   "pad": "1",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -1.85,
    -1.5
   ],
   "rot": 0.0,
   "size": [
    1.5,
    0.7
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "1",
   "name": "SW",
   "type": "output",
   "description": "Switch node - drain of the internal 60V power MOSFET (RDSon ~300 mΩ, max 1.2A). Connects to the inductor / freewheel Schottky cathode in the buck topology.",
   "is_pin1": true,
   "source": {
    "geometry": "SOT-89-5.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "2",
   "kind": "smd",
   "shape": "custom",
   "at": [
    0.0,
    0.0
   ],
   "rot": 0.0,
   "size": [
    0.8,
    2.0
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "2",
   "name": "VSS",
   "type": "power_in",
   "description": "Chip ground / return for internal MOSFET source and control circuitry.",
   "is_pin1": false,
   "source": {
    "geometry": "SOT-89-5.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "3",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    -1.85,
    1.5
   ],
   "rot": 0.0,
   "size": [
    1.5,
    0.7
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "3",
   "name": "DIM",
   "type": "input",
   "description": "Brightness/dimming control input. Accepts PWM (up to 20 kHz) or analog (0.5V-2.5V) dimming; VIH ≥ 2.5V, VIL ≤ 0.3V. Internal ~500 kΩ pull-up to a 5V internal LDO - leave floating if dimming is not used. VDIM absolute-max is 6V. Output shuts off (standby) when DIM < 0.3V.",
   "is_pin1": false,
   "source": {
    "geometry": "SOT-89-5.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "4",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    1.85,
    1.5
   ],
   "rot": 0.0,
   "size": [
    1.5,
    0.7
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "4",
   "name": "CS",
   "type": "input",
   "description": "High-side current-sense input. External sense resistor RCS between VIN and CS sets the LED current: ILED ≈ 0.2V / RCS. Hysteretic thresholds are 240 mV (peak) and 160 mV (valley) across VIN-CS. Input bias ~10 µA.",
   "is_pin1": false,
   "source": {
    "geometry": "SOT-89-5.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  },
  {
   "pad": "5",
   "kind": "smd",
   "shape": "roundrect",
   "at": [
    1.85,
    -1.5
   ],
   "rot": 0.0,
   "size": [
    1.5,
    0.7
   ],
   "layers": [
    "F.Cu",
    "F.Mask",
    "F.Paste"
   ],
   "thermal": false,
   "pin": "5",
   "name": "VIN",
   "type": "power_in",
   "description": "Main supply input, 5.5V to 60V operating (68V absolute max). UVLO rising ≈ 5.1V with 0.4V hysteresis. Bypass with 47-100 µF bulk capacitor rated above max VIN. Standby current ~320 µA at 12V when DIM=0.",
   "is_pin1": false,
   "source": {
    "geometry": "SOT-89-5.kicad_mod",
    "meaning": "page.json:component.pins",
    "correspondence": "kicad: symbol pin number == pad name"
   }
  }
 ]
}