Inicio Gestión de la energía Controladores y alimentación para pantallas LCD y OLED

Generador de tensión de referencia para ajuste VCOM

Detalles del producto

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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Documentación técnica

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Tipo Título Fecha
* Data sheet Programmable Voltage Source with Memory datasheet (Rev. A) 23 oct 2006
Application note Driving Capacitive Loads with Gamma Buffers 20 nov 2012

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

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Herramienta de cálculo

SBOC222 Resistor Divider Calculator.ZIP

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Controladores y alimentación para pantallas LCD y OLED
BUF01900 Generador de tensión de referencia para ajuste VCOM
Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TSSOP (PW) 8 Ultra Librarian
VSON (DRC) 10 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

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