TPS65642A LCD Bias with Integrated Gamma Reference for Notebook PCs, Tablet PCs and Moni |

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LCD Bias with Integrated Gamma Reference for Notebook PCs, Tablet PCs and Moni



The TPS65642A device is a compact LCD bias solution primarily intended for use in notebook and tablet PCs. The device comprises two boost converters to supply the source driver and gate driver, or level shifter, of the LCD panel; two buck converters and a low-dropout (LDO) linear regulator to supply the system logic voltages; a programmable VCOM generator with two high-speed amplifiers; 14-channel gamma-voltage correction; and a gate-voltage shaping function.


  • 2.6 V to 6 V Input Voltage Range
  • Synchronous Boost Converter (AVDD)
  • Non-Synchronous Boost Converter With Temperature
    Compensation (VGH)
  • Synchronous Buck Converter (VCORE)
  • Synchronous Buck Converter (VIO1)
  • Low Dropout Linear Regulator (VIO2)
  • Programmable VCOM Calibrator With Two
    Integrated Buffer Amplifiers
  • Gate Voltage Shaping
  • Panel Discharge Signal (XAO)
  • System Reset Signal (RST)
  • 14-Channel, 10-Bit Programmable Gamma Voltage Correction
  • On-Chip EEPROM with Write Protect
  • I2C™ Interface
  • Thermal Shutdown
  • Supports GIP and Non-GIP Displays
  • 56-Ball, 3,16-mm × 3,45-mm 0,4-mm Pitch DSBGA


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Part number Order Display type IC integration Vin (Min) (V) Vin (Max) (V) Source driver voltage (Min) (V) Source driver voltage (Max) (V) Level shifter/scan driver (ch) Special function Topology Type Rating Package size: mm2:W x L (PKG) Package Group
TPS65642A Order now LCD Unipolar     Gamma Buffer
LCD Bias
2.6     6     7     10.1     0     Adjustable Sequencing
Gamma Buffer
Output Discharge
Reset Generator
Temperature Sensor/Compensation
        Catalog     56DSBGA: 9 mm2: 2.8 x 3.2 (DSBGA | 56)     DSBGA | 56