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EV Charger Touch Solutions

Adding a Modern User Interface to EV Charger Stations

Touchscreens are a modern trend for the user interface on Electric Vehicle (EV) chargers, where not only the large public chargers, but also the wall boxes are adopting touchscreens for their designs. These terminals are mostly used outdoors and are exposed to harsh outdoor environments of rain, snow, dust, sunlight exposure and vandalism. Secure PIN entry on the main touchscreen can help EV charger manufacturers avoid the use of a separate smaller touchscreen terminal for the payment function.

Key features of our EV charger touch solutions include:

  • Support for screen sizes of up to 25 inches
  • Cover glass thickness of up to 10 mm
  • Multi-finger support, even with thick gloves
  • Immunity against water drops, moving drops or cleaning liquids
  • Encryption and firmware authentication for secure payment
  • Payment Card Interface (PCI) certification support
  • IEC 61000-4-6, 10 VRMS, Class A conducted noise immunity
  • Communication via USB, I2C, USB Human Interface Design (HID) and I2C HID

Level 3 Fast DC Charging Station Interactive Block Diagram

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Level 3 Fast DC Charging Station Block Diagram

maXTouch® Touchscreen Controllers With Encryption

Product Package Number of X Lines Number of Y Lines Channels Max Number of Nodes (X*Y) Typical Screen Size Max Temp Range
ATMXT2952TD 2.0 162 UFBGA
10 mm × 5 mm		 Up to 41 Up to 71 112 2911 21 inches −40°C to 85°C
ATMXT1664TD 2.0 162 UFBGA
10 mm × 5 mm		 Up to 41 Up to 71 112 1664 15 inches −40°C to 85°C
ATMXT640UD 3.0 UFBGA88
6 mm × 6 mm		 Up to 32 Up to 20 52 640 10 inches −40°C to 85°C
ATMXT336UD 3.0 XQFN56
6 mm × 6 mm		 Up to 14 Up to 24 38 336 7 inches −40°C to 85°C