BUF05704, BUF06704
BUF07704, BUF11704
SBOS277E − JUNE 2004 − REVISED DECEMBER 2004
18 V SUPPLY MULTI CHANNEL GAMMA CORRECTION BUFFER
FEATURES
D
Wide Supply Range: 4.5 V to 18 V
D
Gamma Correction Channels: 10, 6, and 4
D
Integrated V
COM
Buffer
D
Excellent Output Current Drive:
− Gamma Channels:
> 30 mA at 0.5 V Swing to Rails
(1)
− V
COM
:
> 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
V
DD
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
savings, a V
COM
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 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
BUF11704
GAMMA
CHANNELS
10
6
6
4
VCOM CHANNELS
1
1
0
1
D
D
D
D
D
D
(1) See Typical Characteristic curves for details.
BUFx x704
So urce Driver
Gamma 1
Gamma 2
Gamma 3
Gamma (n
−
2)
Gamma (n
−
1)
BUF07704
BUF06704
BUF05704
Gamma (n )
V
COM
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.
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.
Copyright
2004, Texas Instruments Incorporated
www.ti.com
BUF05704, BUF06704
BUF07704, BUF11704
www.ti.com
SBOS277E − JUNE 2004 − REVISED DECEMBER 2004
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1)
PARAMETERS
Supply Voltage, VDD(2)
Input Voltage Range, VI
Continuous Total Power Dissipation
Operating Free-Air Temperature Range, TA
Maximum Junction Temperature, TJ
Storage Temperature Range, TSTG
Lead Temperature 1.6mm (1/16 inch) from Case for 10s
ESD Rating:
Human Body Model (HBM)
Charged-Device Model (CDM)
8
2
kV
kV
BUFxx704
19
UNIT
V
±V
DD
See Dissipation Rating Table
−25 to 85
125
−65 to 150
260
°C
°C
°C
°C
Machine Model (MM)
300
V
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to GND.
ORDERING INFORMATION
(1)
PRODUCT
BUF05704
BUF06704
BUF07704
PACKAGE-LEAD
TSSOP-14
TSSOP-16
TSSOP-20
PACKAGE MARKING
BUF05704
BUF06704
BUF07704
BUF11704
TSSOP-28
BUF11704
(1) For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet.
DISSIPATION RATING TABLE
PACKAGE TYPE
TSSOP-28
TSSOP-20
TSSOP-16
TSSOP-14
PACKAGE
DESIGNATOR
PWP (28)
PWP (20)
PWP (16)
PWP (14)
θ
JC(1)
(°C/W)
0.72
1.40
2.07
2.07
q
JA(1)
(°C/W)
27.9
32.63
36.51
37.47
TA
≤
25°C
POWER RATING
3.58 W
3.06 W
2.74
2.67
(1) PowerPAD attached to PCB, 0 lfm airflow, and 76mm x 76mm copper area.
RECOMMENDED OPERATING CONDITIONS
MIN
Supply Voltage, VDD
Operating Free-Air Temperature, TA
7
−25
NOM
MAX
18
+85
UNIT
V
°C
2
Analogue and Mixed Signal
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