component
LTC2945CMS#PBF - Wide Range I2C Power Monitor
Public Made by Adomby adom
Analog Devices (Linear Technology) LTC2945CMS#PBF: wide range I2C power monitor, 0 V to 80 V current and voltage sensing, 12-bit ADC, 24-bit power, min/max and alerts, split SDA for opto-isolation, 0 C to 70 C, MSOP-12. KiCad, Fusion and Altium libraries, 3D model and datasheet.
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{
"schema": "adom/footprint-check@1",
"reference": "Analog Devices LTC2945 datasheet Rev. D p.32, MS Package 12-Lead Plastic MSOP, LTC DWG 05-08-1668 Rev A, RECOMMENDED SOLDER PAD LAYOUT",
"values_mm": {
"pitch": 0.65,
"pad_width": 0.42,
"pad_length": 0.889,
"inner_gap_printed": [
3.2,
3.45
],
"inner_gap_used": 3.325,
"pad_centre_x": 2.107,
"outer_extent": 5.103,
"outer_extent_printed_min": 5.1
},
"choice": "The drawing prints the inner gap as a range (3.20 to 3.45 mm) and the outer extent as 5.10 mm minimum; the page uses the middle of the range, 3.325 mm, which gives an outer extent of 5.103 mm (meets the 5.10 minimum).",
"page_footprint": "ltc2945cms-pbf.kicad_mod",
"all_pads_match": true,
"pads": [
{
"pad": "1",
"adi": {
"x": -2.107,
"y": -1.625,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": -2.107,
"y": -1.625,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": -2.15,
"y": -1.625,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
"x": -0.043,
"y": 0.0,
"w": 0.561,
"h": -0.02
}
},
{
"pad": "2",
"adi": {
"x": -2.107,
"y": -0.975,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": -2.107,
"y": -0.975,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": -2.15,
"y": -0.975,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
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"y": 0.0,
"w": 0.561,
"h": -0.02
}
},
{
"pad": "3",
"adi": {
"x": -2.107,
"y": -0.325,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": -2.107,
"y": -0.325,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": -2.15,
"y": -0.325,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
"x": -0.043,
"y": 0.0,
"w": 0.561,
"h": -0.02
}
},
{
"pad": "4",
"adi": {
"x": -2.107,
"y": 0.325,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": -2.107,
"y": 0.325,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": -2.15,
"y": 0.325,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
"x": -0.043,
"y": 0.0,
"w": 0.561,
"h": -0.02
}
},
{
"pad": "5",
"adi": {
"x": -2.107,
"y": 0.975,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": -2.107,
"y": 0.975,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": -2.15,
"y": 0.975,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
"x": -0.043,
"y": 0.0,
"w": 0.561,
"h": -0.02
}
},
{
"pad": "6",
"adi": {
"x": -2.107,
"y": 1.625,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": -2.107,
"y": 1.625,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": -2.15,
"y": 1.625,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
"x": -0.043,
"y": 0.0,
"w": 0.561,
"h": -0.02
}
},
{
"pad": "7",
"adi": {
"x": 2.107,
"y": 1.625,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": 2.107,
"y": 1.625,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": 2.15,
"y": 1.625,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
"x": 0.043,
"y": 0.0,
"w": 0.561,
"h": -0.02
}
},
{
"pad": "8",
"adi": {
"x": 2.107,
"y": 0.975,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": 2.107,
"y": 0.975,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": 2.15,
"y": 0.975,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
"x": 0.043,
"y": 0.0,
"w": 0.561,
"h": -0.02
}
},
{
"pad": "9",
"adi": {
"x": 2.107,
"y": 0.325,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": 2.107,
"y": 0.325,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": 2.15,
"y": 0.325,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
"x": 0.043,
"y": 0.0,
"w": 0.561,
"h": -0.02
}
},
{
"pad": "10",
"adi": {
"x": 2.107,
"y": -0.325,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": 2.107,
"y": -0.325,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": 2.15,
"y": -0.325,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
"x": 0.043,
"y": 0.0,
"w": 0.561,
"h": -0.02
}
},
{
"pad": "11",
"adi": {
"x": 2.107,
"y": -0.975,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": 2.107,
"y": -0.975,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": 2.15,
"y": -0.975,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
"x": 0.043,
"y": 0.0,
"w": 0.561,
"h": -0.02
}
},
{
"pad": "12",
"adi": {
"x": 2.107,
"y": -1.625,
"w": 0.889,
"h": 0.42
},
"page": {
"shape": "rect",
"x": 2.107,
"y": -1.625,
"w": 0.889,
"h": 0.42
},
"page_minus_adi": {
"x": 0.0,
"y": 0.0,
"w": 0.0,
"h": 0.0
},
"match": true,
"kicad": {
"shape": "roundrect",
"x": 2.15,
"y": -1.625,
"w": 1.45,
"h": 0.4
},
"kicad_minus_adi": {
"x": 0.043,
"y": 0.0,
"w": 0.561,
"h": -0.02
}
}
],
"kicad_comparison": "KiCad MSOP-12_3x4.039mm_P0.65mm (IPC-7351 nominal, generated from the same LTC drawing 05-08-1668): pads 1.45 x 0.40 mm roundrect 25 % at x = +-2.15; ADI's are 0.889 x 0.42 rectangles at x = +-2.107. KiCad's pad is 0.561 mm longer and 0.02 mm narrower; its inner edge sits 1.425 mm from centre (ADI 1.6625, so 0.2375 mm further under the body) and its outer edge 2.875 mm (ADI 2.5515, 0.3235 mm further out). Pitch and pin order identical. The page follows ADI's drawing.",
"model_contact": {
"method": "section of the 3D model at z = 0.01 mm, one bounding box per lead, flipped to footprint Y down",
"leads": [
{
"pad": "1",
"contact_x": [
-2.45,
-1.9902
],
"contact_width": 0.3,
"pad_x": [
-2.5515,
-1.6625
],
"contact_inside_pad": true
},
{
"pad": "2",
"contact_x": [
-2.45,
-1.9902
],
"contact_width": 0.3,
"pad_x": [
-2.5515,
-1.6625
],
"contact_inside_pad": true
},
{
"pad": "3",
"contact_x": [
-2.45,
-1.9902
],
"contact_width": 0.3,
"pad_x": [
-2.5515,
-1.6625
],
"contact_inside_pad": true
},
{
"pad": "4",
"contact_x": [
-2.45,
-1.9902
],
"contact_width": 0.3,
"pad_x": [
-2.5515,
-1.6625
],
"contact_inside_pad": true
},
{
"pad": "5",
"contact_x": [
-2.45,
-1.9902
],
"contact_width": 0.3,
"pad_x": [
-2.5515,
-1.6625
],
"contact_inside_pad": true
},
{
"pad": "6",
"contact_x": [
-2.45,
-1.9902
],
"contact_width": 0.3,
"pad_x": [
-2.5515,
-1.6625
],
"contact_inside_pad": true
},
{
"pad": "12",
"contact_x": [
1.9902,
2.45
],
"contact_width": 0.3,
"pad_x": [
1.6625,
2.5515
],
"contact_inside_pad": true
},
{
"pad": "11",
"contact_x": [
1.9902,
2.45
],
"contact_width": 0.3,
"pad_x": [
1.6625,
2.5515
],
"contact_inside_pad": true
},
{
"pad": "10",
"contact_x": [
1.9902,
2.45
],
"contact_width": 0.3,
"pad_x": [
1.6625,
2.5515
],
"contact_inside_pad": true
},
{
"pad": "9",
"contact_x": [
1.9902,
2.45
],
"contact_width": 0.3,
"pad_x": [
1.6625,
2.5515
],
"contact_inside_pad": true
},
{
"pad": "8",
"contact_x": [
1.9902,
2.45
],
"contact_width": 0.3,
"pad_x": [
1.6625,
2.5515
],
"contact_inside_pad": true
},
{
"pad": "7",
"contact_x": [
1.9902,
2.45
],
"contact_width": 0.3,
"pad_x": [
1.6625,
2.5515
],
"contact_inside_pad": true
}
],
"all_inside": true
}
}