TPS65642 LCD Bias with Integrated Gamma Reference for Notebook PCs and Tablet PCs | TI.com

TPS65642
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
LCD Bias with Integrated Gamma Reference for Notebook PCs and Tablet PCs

 

Recommended alternative parts

  • TPS65642A  -  This device has an AVDD range from 7V to 10.1V (instead of 6.0 to 9.1V) Sequence: Vio & Vcore are sync (instead of Vcore after Vio)
  • TPS65640  -  This device has no integrated gamma buffer, 2 OpAmps

Description

The TPS65642 is a compact LCD bias solution primarily intended for use in Notebook and Tablet PCs. The device comprises two boost converters to supply the LCD panel’s source driver and gate driver/level shifter; two buck converters and an LDO linear regulator to supply the system’s logic voltages; a programmable VCOM generator with two high-speed amplifiers; 14-channel gamma voltage correction; and a gate voltage shaping function.

Features

  • 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

Parametrics

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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
TPS65642 Order now LCD Unipolar     Gamma Buffer
LCD Bias
VCOM    
2.6     6     6     9.1     0     Adjustable Sequencing
GPM/GVS
Gamma Buffer
I2C I/F
Output Discharge
Reset Generator
Temperature Sensor/Compensation
VCOM/OpAmp    
        Catalog     56DSBGA: 9 mm2: 2.8 x 3.2 (DSBGA | 56)     DSBGA | 56