component
PT4115B89E
Public Made by Adomby adom
PowTech CR PowTech Shanghai LED Drivers, SOT-89-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
main
Ray
pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left)
b4ef3aa
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{
"schema": "adom.pads/1",
"slug": "pt4115b89e",
"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 output. Drain of the internal high-side N-channel MOSFET switch (Rds(on) ~0.4-0.6 Ω, Isw <=1.2 A continuous, absolute max 1.5 A, -0.3 to 45 V). Connects to the inductor (and the freewheel diode cathode) in the buck power stage.",
"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": "GND",
"type": "power_in",
"description": "Signal and power ground. Connect directly to the ground plane; also serves as the return for the internal MOSFET switch current.",
"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": "Logic-level dimming / enable input. Drive below 0.3 V to disable the current regulator (shutdown, Iq ~95 µA); drive >=2.5 V to enable full LED current. Accepts a DC voltage from 0.5-2.5 V for linear brightness control, or a PWM signal from 100 Hz up to 20 kHz for duty-cycle dimming (5000:1 range). Internally pulled to a 5 V rail via a ~200 kΩ resistor, so the pin may be left floating for always-on operation. Absolute max -0.3 to 6 V.",
"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": "CSN",
"type": "input",
"description": "High-side current-sense input. Connects to the low side of the external sense resistor Rs (which sits between VIN and CSN). The internal comparator regulates the average voltage (VIN - VCSN) to ~100 mV (98 mV A-type / 102 mV B-type), giving ILED_avg ≈ 0.1 V / Rs. Input current ~8 µA; absolute max +0.3 V to -6.0 V with respect to VIN.",
"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": "Input supply pin. Operating range 6 V to 30 V (absolute max -0.3 to 45 V); UVLO ~5.1 V with ~500 mV hysteresis. Must be locally bypassed (typ. 100 µF ceramic/electrolytic to GND close to the pin). Also serves as the high-side reference for the current-sense comparator.",
"is_pin1": false,
"source": {
"geometry": "SOT-89-5.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
}
]
}