BUF20800

활성

두 개의 프로그래머블 VCOM 채널을 지원하는 18채널 감마 전압 발생기

지금 주문하기

데이터 시트

document-pdfAcrobat 18-Channel, Gamma Voltage Generator with Two Programmable Vcom Channels datasheet (Rev. E) (영어)

BUF20800

활성

데이터 시트

지금 주문하기

제품 상세 정보

Display type

LCD unipolar

IC integration

Gamma buffer, VCOM

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

Source driver voltage (min) (V)

7

Source driver voltage (max) (V)

18

Level shifter/scan driver (Ch)

0

Features

Gamma buffer, I2C interface, VCOM or op amp

Rating

Catalog

Operating temperature range (°C)

-40 to 95

Display type

LCD unipolar

IC integration

Gamma buffer, VCOM

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

Source driver voltage (min) (V)

7

Source driver voltage (max) (V)

18

Level shifter/scan driver (Ch)

0

Features

Gamma buffer, I2C interface, VCOM or op amp

Rating

Catalog

Operating temperature range (°C)

-40 to 95

HTSSOP (DCP)

38

62.08 mm² (9.7 mm × 6.4 mm)

18-CHANNEL GAMMA CORRECTION
2-CHANNEL PROGRAMMABLE V_COM:
100mA I_OUT
10-BIT RESOLUTION
RAIL-TO-RAIL OUTPUT
LOW SUPPLY CURRENT: 900µA/ch
SUPPLY VOLTAGE: 7V to 18V
DIGITAL SUPPLY: 2.0V to 5.5V
INDUSTRY-STANDARD, TWO-WIRE INTERFACE:
3.4MHz High-Speed Mode
HIGH ESD RATING:
4kV HBM, 1kV CDM, 200V MM
DEMO BOARD AND SOFTWARE AVAILABLE
APPLICATIONS
- REPLACES RESISTOR-BASED GAMMA SOLUTIONS
- TFT-LCD REFERENCE DRIVERS
- DYNAMIC GAMMA CONTROL

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

18-CHANNEL GAMMA CORRECTION
2-CHANNEL PROGRAMMABLE V_COM:
100mA I_OUT
10-BIT RESOLUTION
RAIL-TO-RAIL OUTPUT
LOW SUPPLY CURRENT: 900µA/ch
SUPPLY VOLTAGE: 7V to 18V
DIGITAL SUPPLY: 2.0V to 5.5V
INDUSTRY-STANDARD, TWO-WIRE INTERFACE:
3.4MHz High-Speed Mode
HIGH ESD RATING:
4kV HBM, 1kV CDM, 200V MM
DEMO BOARD AND SOFTWARE AVAILABLE
APPLICATIONS
- REPLACES RESISTOR-BASED GAMMA SOLUTIONS
- TFT-LCD REFERENCE DRIVERS
- DYNAMIC GAMMA CONTROL

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

The BUF20800 is a programmable voltage reference generator designed for gamma correction in TFT-LCD panels. It provides 18 programmable outputs for gamma correction and two channels for V_COM adjustment, each with 10-bit resolution.

This programmability replaces the traditional, timeconsuming process of changing resistor values to optimize the various gamma voltages and allows designers to determine the correct gamma voltages for a panel very quickly. Required changes can also be easily implemented without hardware changes.

The BUF20800 uses TI’s latest, small-geometry analog CMOS process, which makes it a very competitive choice for full production, not just evaluation.

Programming of each output occurs through an industry-standard, two-wire serial interface. Unlike existing programmable buffers, the BUF20800 offers a high-speed mode that allows clock speeds up to 3.4MHz.

For lower channel count, please contact your local sales or marketing representative.

The BUF20800 is available in an HTSSOP-38 PowerPAD™ package. It is specified from –40°C to +85°C.

The BUF20800 is a programmable voltage reference generator designed for gamma correction in TFT-LCD panels. It provides 18 programmable outputs for gamma correction and two channels for V_COM adjustment, each with 10-bit resolution.

This programmability replaces the traditional, timeconsuming process of changing resistor values to optimize the various gamma voltages and allows designers to determine the correct gamma voltages for a panel very quickly. Required changes can also be easily implemented without hardware changes.

The BUF20800 uses TI’s latest, small-geometry analog CMOS process, which makes it a very competitive choice for full production, not just evaluation.

Programming of each output occurs through an industry-standard, two-wire serial interface. Unlike existing programmable buffers, the BUF20800 offers a high-speed mode that allows clock speeds up to 3.4MHz.

For lower channel count, please contact your local sales or marketing representative.

The BUF20800 is available in an HTSSOP-38 PowerPAD™ package. It is specified from –40°C to +85°C.

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3개 모두 보기

상위 문서	유형	직함	날짜
*	데이터 시트	18-Channel, Gamma Voltage Generator with Two Programmable Vcom Channels datasheet (Rev. E)	2007. 12. 5
	애플리케이션 노트	Driving Capacitive Loads with Gamma Buffers	2012. 11. 20
	EVM User's guide	BUF20800/BUF20820EVM User Guide	2011. 4. 8