Startseite Energiemanagement Stromversorgung und Treiber für LCD & OLED -Displays

Mehrkanal-Gamma-Korrekturpuffer mit 18 V Stromversorgung

Produktdetails

Display type LCD unipolar IC integration Gamma buffer, VCOM Vin (min) (V) 4.5 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 Gamma buffer, VCOM or op amp Rating Catalog Operating temperature range (°C) to
Display type LCD unipolar IC integration Gamma buffer, VCOM Vin (min) (V) 4.5 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 Gamma buffer, VCOM or op amp Rating Catalog Operating temperature range (°C) to
HTSSOP (PWP) 14 32 mm² 5 x 6.4
  • Wide Supply Range: 4.5 V to 18 V
  • Gamma Correction Channels: 10, 6, and 4
  • Integrated VCOM Buffer
  • Excellent Output Current Drive:
    • Gamma Channels:
      > 30 mA at 0.5 V Swing to Rails(1)
    • VCOM:
      > 100 mA typ at 2 V Swing to Rails(1)
  • Large Capacitive Load Drive Capability
  • Rail-to-Rail Output
  • PowerPAD™ Package
  • Low-Power/Channel: < 500 µA
  • High ESD Rating: 8 kV HBM, 2 kV CDM, 300 V MM
  • Specified for –25°C to +85°C

(1) See Typical Characteristic curves for details.
PowerPAD is a trademark of Texas Instruments Incorporated.
All other trademarks are the property of their respective owners.

  • Wide Supply Range: 4.5 V to 18 V
  • Gamma Correction Channels: 10, 6, and 4
  • Integrated VCOM Buffer
  • Excellent Output Current Drive:
    • Gamma Channels:
      > 30 mA at 0.5 V Swing to Rails(1)
    • VCOM:
      > 100 mA typ at 2 V Swing to Rails(1)
  • Large Capacitive Load Drive Capability
  • Rail-to-Rail Output
  • PowerPAD™ Package
  • Low-Power/Channel: < 500 µA
  • High ESD Rating: 8 kV HBM, 2 kV CDM, 300 V MM
  • Specified for –25°C to +85°C

(1) See Typical Characteristic curves for details.
PowerPAD is a trademark of Texas Instruments Incorporated.
All other trademarks are the property of their respective owners.

The BUFxx704 are a series of multi-channel buffers targeted towards gamma correction in high-resolution LCD panels. They are pin-compatible with the existing BUFxx702 and BUFxx703 families and operate at higher supply voltages up to 18 V (19 V absolute max). The higher supply voltage enables faster response times and brighter images in large-screen LCD panels. This is especially important in LCD TV applications.

The number of gamma correction channels required depends on a variety of factors and differs greatly from design to design. Therefore, 10, 6, and 4 channel options are offered. For additional space and cost savings, a VCOM channel with > 100mA drive capability is integrated into the BUF11704, BUF07704, and BUF05704.

The BUF11704, BUF07704, BUF06704, and BUF05704 are available in the TSSOP-28, TSSOP-20, TSSOP-16, and TSSOP-14 PowerPAD packages for dramatically increased power dissipation capability. This way, a large number of channels can be handled safely in one package.

A flow-through pinout has been adopted to allow simple PCB routing and maintain the cost-effectiveness of this solution. All inputs and outputs of the BUFxx704 incorporate internal ESD protection circuits that prevent functional failures at voltages up to 8 kV (HBM), 2 kV (CDM), and 300 V (MM).

The BUFxx704 are a series of multi-channel buffers targeted towards gamma correction in high-resolution LCD panels. They are pin-compatible with the existing BUFxx702 and BUFxx703 families and operate at higher supply voltages up to 18 V (19 V absolute max). The higher supply voltage enables faster response times and brighter images in large-screen LCD panels. This is especially important in LCD TV applications.

The number of gamma correction channels required depends on a variety of factors and differs greatly from design to design. Therefore, 10, 6, and 4 channel options are offered. For additional space and cost savings, a VCOM channel with > 100mA drive capability is integrated into the BUF11704, BUF07704, and BUF05704.

The BUF11704, BUF07704, BUF06704, and BUF05704 are available in the TSSOP-28, TSSOP-20, TSSOP-16, and TSSOP-14 PowerPAD packages for dramatically increased power dissipation capability. This way, a large number of channels can be handled safely in one package.

A flow-through pinout has been adopted to allow simple PCB routing and maintain the cost-effectiveness of this solution. All inputs and outputs of the BUFxx704 incorporate internal ESD protection circuits that prevent functional failures at voltages up to 8 kV (HBM), 2 kV (CDM), and 300 V (MM).

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Technische Dokumentation

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Typ Titel Datum
* Data sheet BUFxx704: 18-V Supply Multi-Channel Gamma Correction Buffer datasheet (Rev. F) 05 Dez 2007
Application note Driving Capacitive Loads with Gamma Buffers 20 Nov 2012

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