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BUF01900

NOT RECOMMENDED FOR NEW DESIGNS

Reference Voltage Generator for VCOM Adjustment

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Data sheet

BUF01900

NOT RECOMMENDED FOR NEW DESIGNS
Data sheet Order now

Product details

Display type LCD unipolar IC integration Gamma buffer Vin (min) (V) 7 Vin (max) (V) 18 Applications 13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches Level shifter/scan driver (Ch) 0 Features I2C interface, VCOM or op amp Rating Catalog Operating temperature range (°C) to
Display type LCD unipolar IC integration Gamma buffer Vin (min) (V) 7 Vin (max) (V) 18 Applications 13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches Level shifter/scan driver (Ch) 0 Features I2C interface, VCOM or op amp Rating Catalog Operating temperature range (°C) to
TSSOP (PW) 8 19.2 mm² 3 x 6.4 VSON (DRC) 10 9 mm² 3 x 3
  • 10-BIT RESOLUTION
  • RAIL-TO-RAIL OUTPUT
  • ONBOARD NONVOLATILE MEMORY
  • IOUT: 100mA
  • LOW SUPPLY CURRENT: 900µA
  • SUPPLY VOLTAGE: 7V to 18V
  • DIGITAL SUPPLY: 2.0V to 5.5V
  • INDUSTRY-STANDARD, TWO-WIRE INTERFACE
  • HIGH ESD RATING: 2kV HBM, 500V CDM
  • APPLICATIONS
    • LCD PANEL VCOM CALIBRATION
    • LCD PANEL BRIGHTNESS AND CONTRAST CONTROL
    • POTENTIOMETER REPLACEMENT
    • MOTOR DRIVE
    • PROGRAMMABLE POWER SUPPLY
    • PROGRAMMABLE OFFSET ADJUSTMENT
    • ACTUATOR CONTROL

PowerPAD is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners.
  • 10-BIT RESOLUTION
  • RAIL-TO-RAIL OUTPUT
  • ONBOARD NONVOLATILE MEMORY
  • IOUT: 100mA
  • LOW SUPPLY CURRENT: 900µA
  • SUPPLY VOLTAGE: 7V to 18V
  • DIGITAL SUPPLY: 2.0V to 5.5V
  • INDUSTRY-STANDARD, TWO-WIRE INTERFACE
  • HIGH ESD RATING: 2kV HBM, 500V CDM
  • APPLICATIONS
    • LCD PANEL VCOM CALIBRATION
    • LCD PANEL BRIGHTNESS AND CONTRAST CONTROL
    • POTENTIOMETER REPLACEMENT
    • MOTOR DRIVE
    • PROGRAMMABLE POWER SUPPLY
    • PROGRAMMABLE OFFSET ADJUSTMENT
    • ACTUATOR CONTROL

PowerPAD is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners.

The BUF01900 and BUF01901 provide a programmable voltage output with 10-bit resolution. Programming of the output occurs through an industry-standard, two-wire serial interface. Once the correct VCOM voltage is established it can easily be stored into the integrated nonvolatile memory.

An initial output voltage and adjustment range can be set by an external resistor-divider. With its large output current capability (up to 100mA), the BUF01900 and BUF01901 are ideally suited as programmable VCOM calibrators in LCD panels.

The BUF01901 has the digital-to-analog converter (DAC) output brought out directly. It has a slightly lower cost than the BUF01900, and works very well with the integrated VCOM in traditional gamma buffers such as the BUFxx702, BUFxx703, BUFxx704 and BUF11705.

The BUF01900 and BUF01901 are both available in TSSOP-8 and 3mm x 3mm DFN-10 packages. The DFN-10 package (only 0.9mm in height) is especially well-suited for notebook computers. Both devices are specified from -40°C to +85°C.

The BUF01900 and BUF01901 provide a programmable voltage output with 10-bit resolution. Programming of the output occurs through an industry-standard, two-wire serial interface. Once the correct VCOM voltage is established it can easily be stored into the integrated nonvolatile memory.

An initial output voltage and adjustment range can be set by an external resistor-divider. With its large output current capability (up to 100mA), the BUF01900 and BUF01901 are ideally suited as programmable VCOM calibrators in LCD panels.

The BUF01901 has the digital-to-analog converter (DAC) output brought out directly. It has a slightly lower cost than the BUF01900, and works very well with the integrated VCOM in traditional gamma buffers such as the BUFxx702, BUFxx703, BUFxx704 and BUF11705.

The BUF01900 and BUF01901 are both available in TSSOP-8 and 3mm x 3mm DFN-10 packages. The DFN-10 package (only 0.9mm in height) is especially well-suited for notebook computers. Both devices are specified from -40°C to +85°C.
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* Data sheet Programmable Voltage Source with Memory datasheet (Rev. A) 23 Oct 2006

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