Add qfn-48 for tmc2041-LA (replaces #665)

Replaces #665 Script PR: https://github.com/pointhi/kicad-footprint-generator/pull/149

Datasheet: https://www.trinamic.com/fileadmin/assets/Products/ICs_Documents/TMC2041_datasheet.pdf

---

parameters:

QFN-48-1EP_7x7mm_P0.5mm_EP5.30x5.30mm:
  device_type: 'QFN'
  size_source: 'https://www.trinamic.com/fileadmin/assets/Products/ICs_Documents/TMC2041_datasheet.pdf (Page 62)'
  ipc_class: 'qfn' # 'qfn_pull_back'
  body_size_x:
    nominal: 7
    tolerance: 0
  body_size_y:
    nominal: 7
    tolerance: 0
  lead_width:
    minimum: 0.2
    maximum: 0.3
  lead_len:
    minimum: 0.35
    maximum: 0.45

  EP_size_x:
    nominal: 5.3
    tolerance: 0.1
  EP_size_y:
    nominal: 5.3
    tolerance: 0.1
  EP_num_paste_pads: [4, 4]

  thermal_vias:
    count: [5, 5]
    drill: 0.2
    paste_via_clearance: 0.1
    EP_paste_coverage: 0.6

  pitch: 0.5
  num_pins_x: 12
  num_pins_y: 12