ꢔꢅꢕ ꢖ ꢗ ꢘ ꢖ ꢙ ꢚ ꢔꢅ ꢕꢖ ꢛꢘꢖ ꢙ
ꢔꢅꢕ ꢖ ꢘ ꢘ ꢖ ꢙ ꢚ ꢔ ꢅꢕ ꢀꢀꢘ ꢖꢙ
SBOS277E − JUNE 2004 − REVISED DECEMBER 2004
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FEATURES
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.
D
D
D
D
Wide Supply Range: 4.5 V to 18 V
Gamma Correction Channels: 10, 6, and 4
Integrated V Buffer
COM
Excellent Output Current Drive:
− Gamma Channels:
(1)
> 30 mA at 0.5 V Swing to Rails
− V
:
COM
(1)
> 100 mA typ at 2 V Swing to Rails
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
D
D
D
D
D
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
savings, a V
channel with > 100mA drive capability
COM
is integrated into the BUF11704, BUF07704, and
BUF05704.
D
Specified for −25°C to +85°C
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.
(1)
See Typical Characteristic curves for details.
VDD
Source Driver
Gamma 1
BUFxx704
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).
Gamma 2
Gamma 3
GAMMA
CHANNELS
−
Gamma (n 2)
MODEL
V
COM
CHANNELS
BUF11704
BUF07704
BUF06704
BUF05704
10
6
1
1
0
1
−
Gamma (n 1)
6
4
Gamma (n)
VCOM
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.
PowerPAD is a trademark of Texas Instruments Incorporated. All other trademarks are the property of their respective owners.
ꢆꢓ ꢒ ꢜꢅ ꢌ ꢊꢋ ꢒꢏ ꢜ ꢎꢊꢎ ꢝꢞ ꢟꢠ ꢡ ꢢꢣ ꢤꢝꢠꢞ ꢝꢥ ꢦꢧ ꢡ ꢡ ꢨꢞꢤ ꢣꢥ ꢠꢟ ꢩꢧꢪ ꢫꢝꢦ ꢣꢤꢝ ꢠꢞ ꢬꢣ ꢤꢨꢭ ꢆꢡ ꢠꢬꢧ ꢦꢤꢥ
ꢦ ꢠꢞ ꢟꢠꢡ ꢢ ꢤꢠ ꢥ ꢩꢨ ꢦ ꢝ ꢟꢝ ꢦ ꢣ ꢤꢝ ꢠꢞꢥ ꢩ ꢨꢡ ꢤꢮꢨ ꢤꢨ ꢡ ꢢꢥ ꢠꢟ ꢊꢨꢯ ꢣꢥ ꢋꢞꢥ ꢤꢡ ꢧꢢ ꢨꢞꢤ ꢥ ꢥꢤ ꢣꢞꢬ ꢣꢡ ꢬ ꢰ ꢣꢡ ꢡ ꢣ ꢞꢤꢱꢭ
ꢆꢡ ꢠ ꢬꢧꢦ ꢤ ꢝꢠ ꢞ ꢩꢡ ꢠ ꢦ ꢨ ꢥ ꢥ ꢝꢞ ꢲ ꢬꢠ ꢨ ꢥ ꢞꢠꢤ ꢞꢨ ꢦꢨ ꢥꢥ ꢣꢡ ꢝꢫ ꢱ ꢝꢞꢦ ꢫꢧꢬ ꢨ ꢤꢨ ꢥꢤꢝ ꢞꢲ ꢠꢟ ꢣꢫ ꢫ ꢩꢣ ꢡ ꢣꢢ ꢨꢤꢨ ꢡ ꢥꢭ
Copyright 2004, Texas Instruments Incorporated
www.ti.com
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