Advance Information

176RGB x 220 TFT LCD Integrated Source and Gate COLOR Driver

SSD1278A TFT Driver is an all in one driver that integrated the power circuits, gate driver and source driver into single chip. It can drive a 262k color a-TFT panel with resolution of 176 RGB x 220.

SSD1278A embeds DC-DC Converter and Voltage generator to provide all necessary voltage required by the driver with minimum external components. A Common Voltage Generation Circuit is included to drive the TFT-display counter electrode. An Integrated Gamma Control Circuit is also included that can be adjusted by software commands to provide maximum flexibility and optimal display quality.

SSD1278A can be operated down to 1.16V and provide different power save modes. It is suitable for any portable battery-driven applications requiring long operation period with compact size.

• Power Supply: V_DD = 1.65V –2.50V (non-regulated input for logic)
                       V_DDIO = 1.16V – 3.60V (regulated input for logic)
                        V_CI = 2.50V - 3.60V (power supply for internal analog circuit)

• Maximum Gate Driving Output Voltage : 30V p-p

• Source Driving Output Voltage: 0-5V

• Low Current Sleep Mode and 8-color display mode for power saving

• Display Size: 176 RGB x 220

• Display Color Support: 262k colors a-TFT displays

• Support N-Line inversion

• Source and Gate scan direction control

• On-Chip Voltage Generator

• On-Chip DC-DC Converter up to 6x / -5x

• Typical Source Output Voltage variation: ±10 mV

• Programmable Gamma Correction Curve

• Non-Volatile Memory (OTP) for VCOM calibration

• Programmable Common Electrode Voltage amplitude and level for both Cs on gate or Cs on common structure

• Available in COG package