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480 x 272RGB TFT LCD Driver
Integrated Power Circuit, Gate and Source Driver

SSD2123 is an all in one driver that integrated the power circuits, gate driver and source driver into single chip. It can drive a 16.7M/262k/8 color a-TFT panel with resolution of 480 x 272 RGB.

SSD2123 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. The driver supports three separated RGB Gamma settings. An Integrated Gamma Control Circuit is also included that can be adjusted by software commands to provide maximum flexibility and optimal display quality.

SSD2123 can be operated down to 1.6V and provide different power save modes. It is suitable for any portable battery-driven applications requiring long operation period with compact size.

• 480 x 272 RGB single chip controller driver IC for 16.7M/262k/8 color amorphous TFT LCD

• RGB color filter arrangement at Gate

• Power Supply 

  • VDDIO = 1.6V - 3.6V (I/O Interface)

  • VCI = 2.5V - 3.6V (power supply for internal analog circuit)

• Output Voltages

  • Gate Driver:

    • VGH-GND = 6V ~ 18V

    • VGL-GND = -6V ~ -15V

    • VGH-VGL = 32Vp-p 

  • Source Driver: 

    • Source = VSS + 0.1 ~ AVDD - 0.1V

    • Typical Source Output Voltage variation: ±30 mV

  • VCOM drive: 

    • VCOMH = 2.5V ~ 6.0V

    • VCOML = 0V ~ -3.0V

    • VCOM amplitude = 6V (max)

    • VCOMH in ~10mV resolution steps

• System Interface

  • Serial Peripheral Interface (SPI), 3 wire (9bit), 4 wire and SPID 24 bit interface

• Video interface 

  • 24-bit RGB interface (DEN, DOTCLK, HSYNC, VSYNC, RR[7:0], BB[7:0], GG[7:0])

  • 18-bit RGB interface (DEN, DOTCLK, HSYNC, VSYNC, RR[7:2], BB[7:2], GG[7:2])

  • 8-bit serial RGB interface

  • 6-bit serial RGB interface

• Support low power consumption: 

  • Low voltage supply

  • Low current sleep mode

  • 8-color display mode for power saving

  • Charge sharing function for switching circuits

  • Software settable for Shut and 8 color modes

• Internal power supply circuit 

  • Voltage generator

  • DC-DC converter up to +18/-12 or +15/-15 (VGH - VGL < 32V)

  • AVDD generator of 2x, 2.5x or 3x of VCI 

• Support separate RGB gamma control

• Support line / frame inversion

• TFT storage capacitance: Cs on common

• Support source and gate scan direction control

• Built-in Non Volatile Memory (MTP) for VCOM calibration