Application Reference

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• Touch Key + LED Demo Board

• The SB3628 Demo Board composed of ENE 6-CH touch key IC and 7 COM x 8 SEG LED driver. This Demo Board supports 1628 LED driver. The host is able to communicated with SB3628 via communication ports (STB, CLK, DIO) to drive LED and access the statys of touch keys.

  characteristics and functions:

  • 6-CH independent touch key
  • Good SNR, stable sensitivity
  • Supports 1628 LED driver protocol
  • 7 GRID × 8 SEG LED driver (with 8 interval grayscale)
  • Able to adjust sensitivity through external resistor (with 8 interval grayscale, suitable for various thickness covers)
  • Simple application circuit, requires very few peripheral devices, low cost