SBOS277E − JUNE 2004 − REVISED DECEMBER 2004

18V SUPPLY MULTICHANNEL GAMMA CORRECTION BUFFER

BUF05704,BUF06704

BUF07704,BUF11704

FEATURES

− Gamma Channels:

300 V MM

(1) See Typical Characteristic curves for details.

BUFx x704

V

DD

V

COM

So urce Driver

Gamma 1

Gamma 2

Gamma 3

Gamma (n

− 2)

Gamma (n

− 1)

Gamma (n )

DESCRIPTION

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 family 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

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 pin out 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).

MODEL

GAMMA

CHANNELS

VCOM CHANNELS

BUF11704

10

1

BUF07704

6

1

BUF06704

6

0

BUF05704

4

1

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Copyright

 2004, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

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