¨
¨
¨
BUF07703
BUF06703
BUF05703
SBOS269A – MARCH 2003 – REVISED JUNE 2003
MULTI CHANNEL LCD GAMMA CORRECTION BUFFER
FEATURES
D
Gamma Correction Channels: 6, 4
D
Integrated V
COM
Buffer
D
Excellent Output Current Drive:
D
D
D
D
D
D
D
– Gamma Channels: > 10mA
– V
COM
: > 100mA typ
Large Capacitive Load Drive Capability
Rail-to-Rail Output
PowerPAD Package: BUF07703
Low-Power/Channel: < 250µA
Wide Supply Range: 4.5V to 16V
Specified for 0°C to 85°C
High ESD Rating: 4kV HBM, 1.5kV CDM
DESCRIPTION
The BUFxx703 are a series of multi-channel buffers
targeted towards gamma correction in high-resolution
liquid crystal display (LCD) panels. The number of
gamma correction channels required depends on a
variety of factors and differs greatly from design to
design. Therefore, various channel options are offered.
For additional space and cost savings, a V
COM
channel
with higher current drive capability is integrated in the
BUF07703 and BUF05703.
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 BUFxx703
incorporate internal ESD protection circuits that prevent
functional failures at voltages up to 4kV HBM and 1.5kV
CDM.
The various buffers within the BUFxx703 are carefully
matched to the voltage I/O requirements for the gamma
correction application. Each buffer is capable of driving
heavy capacitive loads and offers fast load current
switching. The V
COM
channel has increased output
drive of > 100mA and can handle even larger capacitive
loads.
The BUF07703 is available in the HTSSOP
PowerPAD package for dramatically increased power
dissipation capability. The BUF06703 and BUF05703
are available in standard TSSOP-16 and TSSOP-14
packages.
APPLICATIONS
D
LCD Flat Panel Displays
D
LCD Television Displays
MODEL
BUF07703
BUF06703
BUF05703
GAMMA
CHANNELS
6
6
4
VCOM CHANNELS
1
0
1
RELATED PRODUCTS
MODEL
BUF11702
BUF04701
TLV2374
GAMMA
CHANNELS
10
4
4
VCOM CHANNELS
1
—
—
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. 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
2003, Texas Instruments Incorporated
www.ti.com
BUF07703
BUF06703
BUF05703
SBOS269A – MARCH 2003 – REVISED JUNE 2003
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate
precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to
damage because very small parametric changes could cause the device not to meet its published specifications.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1)
PARAMETERS
Supply, VDD(2)
Input Voltage Range, VI
Continuous Total Power Dissipation
Operating Free–Air Temperature Range, TA
Maximum Junction Temperature, TJ
Storage Temperature Range, TSTG
BUFXX703
16.5
UNIT
V
VDD
V
See Dissipation Rating Table
0 to +85
150
–65 to 150
°C
°C
°C
Lead Temperature 1.6mm (1/16 inch) from Case for 10s
260
°C
(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
PRODUCT
PACKAGE–LEAD
PACKAGE
DESIGNATOR(1)
PWP
PW
PW
SPECIFIED
TEMPERATURE
RANGE
0°C to +85°C
85°C
0°C to +85°C
85°C
0°C to +85°C
85°C
ORDERING
NUMBER
BUF07703PWP
BUF07703
BUF06703
BUF05703
HTSSOP–20
HTSSOP 20
TSSOP–16
TSSOP 16
TSSOP–14
TSSOP 14
BUF07703PWPR
BUF06703PW
BUF06703PWR
BUF05703PW
BUF05703PWR
(1) For the most current specification and package information, refer to our web site at www.ti.com.
TRANSPORT MEDIA,
QUANTITY
Tube, 70
Reels, 2000
Tube, 90
Reels, 2000
Tube. 90
Reels, 2000
DISSIPATION RATING TABLE
PACKAGE TYPE
TSSOP–20 PowerPAD
TSSOP–16
TSSOP–14
PACKAGE
DESIGNATOR
PWP (20)
PW (16)
PW (14)
θ
JC
( C/W)
1.40(1)
—
—
θ
JA
( C/W)
32.63(1)
108
112
TA
≤
25°C
POWER RATING
3.83W(1)
1.15W
1.11W
(1) Thermal specifications assume 2oz trace and copper pad with solder.
RECOMMENDED OPERATING CONDITIONS
MIN
Supply Voltage, VDD
Operating Free-Air Temperature, TA
TSSOP-20 PowerPAD
Junction Temperature
2
TSSOP-16, 14
4.5
0
NOM
MAX
16
+85
+125
+150
UNI
T
V
°C
°C
°C
www.ti.com
BUF07703
BUF06703
BUF05703
SBOS269A – MARCH 2003 – REVISED JUNE 2003
EQUIVALENT SCHEMATICS OF INPUTS AND OUTPUTS
INPUT STAGE OF BUFFERS
BUF07703: 1 to 3 and VCOM
BUF06703: 1 to 3
BUF05703: 1 to 2 and VCOM
VS
Next
Stage
Buffer
Input
Buffer
Output
GND
VS
Buffer
Input
Buffer
Output
Next Stage
INPUT STAGE OF BUFFERS
BUF07703: 4 to 6
BUF06703: 4 to 6
BUF05703: 3 to 4
OUTPUT STAGE OF ALL BUFFERS
VS
Previous
Stage
Inverting
Input
Previous
Stage
GND
Buffer
Output
GND
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range, VDD = 4.5V to 16V, TA = 25°C, unless otherwise noted.
PARAMETER
VIO
Input offset voltage
TEST CONDITIONS
VI = VDD/2, RS = 50
Ω
TA†
25°C
Full
Range(1)
25°C
IIB
Input bias current
VI = VDD/2
Full
Range(1)
25°C
kSVR
Supply voltage rejection ratio (∆VDD/∆VIO)
Buffer gain
BW_3dB
SR
3dB Bandwidth
Slew Rate
Gamma Buffers
VCOM Buffer
Gamma Buffers
VCOM Buffer
VDD = 4.5V to 16V
VI = 5V
CL = 100pF, RL = 2kΩ
CL = 100pF, RL = 2kΩ
VIN = 2V to 8V
IO = 0 to
±5mA
VO = 5V
CL = 100pF tT = 0.1µs
See Figure 2
IO = 0 to –5mA VO = 5V
CL = 100pF RL = 2kΩ
IO = 0 to +5mA VO = 5V
CL = 100pF RL = 2kΩ
VI = 4.5V to 5.5V 0.1%
VI = 5.5V to 4.5V 0.1%
VI = 4.5V to 5.5V 0.1%
VI = 5.5V to 4.5V 0.1%
VI = 5V f = 1kHz
VIP–P = 6V, f = 1kHz
Full
Range(1)
25°C
25°C
25°C
25°C
25°C
Full
Range(1)
Full
Range(1)
62
60
0.9995
0.8
0.7
1
0.7
900
160
1
2
6
4.6
5.8
5.6
45
40
85
1
200
80
dB
V/V
MHz
V/µs
mV
mV
µs
µs
µs
µs
nv/√Hz
dB
pA
MIN
TYP
1.5
MAX
12
15
mV
UNIT
Transient Load Regulation
Transient Load Response
tS (I–sink)
tS (I–src)
Settling Time–Current
Settling Time–Current
Gamma Buffers
VCOM Buffer
Gamma Buffers
VCOM Buffer
tS
Settling Time–
Voltage
25°C
Vn
Noise Voltage
Crosstalk
25°C
25°C
(1) Full Range is 0°C to +85°C.
3
BUF07703
BUF06703
BUF05703
SBOS269A – MARCH 2003 – REVISED JUNE 2003
www.ti.com
ELECTRICAL CHARACTERISTICS: BUF07703
over operating free-air temperature range, VDD = 4.5V to 16V, TA = 25°C, unless otherwise noted.
PARAMETER
IDD
Supply Current
ALL
Buffers 1–3
Common Mode Input Range
In ut
Buffers 4–6
VCOM Buffer
VCOM buffer sinking
VCOM buffer sourcing
Load regulation
Buffers 1 6 sinking
1–6
Buffers 1 6 sourcing
1–6
VOSH1
VOSL6
VOH1
VOH2/3
VOH4/5
VOH6
VOHCOM
VOL1
VOL2/3
VOL4/5
VOL6
VOLCOM
(1) Full Range is 0°C to +85°C.
Low-level output
out ut
voltage
High-level output
out ut
voltage
High-level
g
saturated output
voltage
Low-level
saturated output
voltage
Buffer 1
VDD = 10V,
IO = 1mA to 30mA
VDD = 10V,
IO = –1mA to –30mA
VDD = 10V,
IO = 1mA to 10mA
VDD = 10V,
IO = –1mA to –10mA
VDD = 16V,
VI = 16V
VDD = 16V,
VI = 0V
VDD = 10V,
VI = 9.8V
VDD = 10V,
VI = 9.5V
VDD = 10V,
VI = 8V
VDD = 10V,
VI = 8V
VDD = 10 V,
VI = 8V
VDD = 10V,
VI = 2 V
VDD = 10V,
VI = 2 V
VDD = 10V,
VI = 0.5 V
VDD = 10V,
VI = 0.2 V
VDD = 10V,
VI = 2V
IO = –5mA,
IO = 5mA,
IO = –10mA,
IO = –10mA,
IO = –10mA,
IO = –10mA,
IO = –30mA,
IO = 10mA,
IO = 10mA,
IO = 10mA,
IO = 10mA,
IO = 30mA,
25°C
Full Range
25°C
Full Range
25°C
Full Range
25°C
Full Range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
2
0.2
0.5
2
9.75
9.7
9.45
9.4
7.95
7.9
7.95
7.9
7.95
7.9
2
2.05
2.1
2.05
2.1
0.55
0.6
0.25
0.3
2.05
2.1
V
8
8
8
9.5
9.8
15.85
15.8
0.1
0.15
0.2
V
V
V
V
V
V
V
V
V
V
15.9
V
0.85
0.85
1
25 C
25°C
TEST CONDITIONS
VO = VDD/2, VI = VDD/2
VDD = 10V
TA(1)
25°C
Full Range
1
0
1
1
MIN
TYP
1.7
MAX
2
3
VDD
VDD–1
VDD
1.2
2.5
1.2
2.5
1
1.5
1
1.5
mV/mA
UNIT
mA
mA
V
Buffer 6
Buffer 1
Buffer 2/3
Buffer 4/5
Buffer 6
VCOM Buffer
Buffer 1
Buffer 2/3
Buffer 4/5
Buffer 6
VCOM Buffer
4
www.ti.com
BUF07703
BUF06703
BUF05703
SBOS269A – MARCH 2003 – REVISED JUNE 2003
ELECTRICAL CHARACTERISTICS: BUF06703
over operating free-air temperature range, VDD = 4.5V to 16V, TA = 25°C, unless otherwise noted.
PARAMETER
IDD
Supply Current
ALL
Buffers 1–3
Common Mode Input Range
Buffers 4–6
Buffers 1 6 sinking
1–6
Load regulation
Buffers 1 6 sourcing
1–6
VOSH1
VOSL6
VOH1
VOH2/3
VOH4/5
VOH6
VOL1
VOL2/3
VOL4/5
VOL6
(1) Full Range is 0°C to +85°C.
High-level
g
saturated output
voltage
Low-level
saturated output
voltage
Buffer 1
VDD = 10V,
IO = 1mA to 10mA
VDD = 10V,
IO = –1mA to –10mA
VDD = 16V,
VI = 16V
VDD = 16V,
VI = 0V
VDD = 10V,
VI = 9.8V
VDD = 10V,
VI = 9.5V
VDD = 10V,
VI = 8V
VDD = 10V,
VI = 8V
VDD = 10V,
VI = 2 V
VDD = 10V,
VI = 2 V
VDD = 10V,
VI = 0.5 V
VDD = 10V,
VI = 0.2 V
IO = –5mA,
IO = 5mA,
IO = –10mA,
IO = –10mA,
IO = –10mA,
IO = –10mA,
IO = 10mA,
IO = 10mA,
IO = 10mA,
IO = 10mA,
25°C
Full Range
25°C
Full Range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
0.2
0.5
2
9.75
9.7
9.45
9.4
7.95
7.9
7.95
7.9
2
2.05
2.1
2.05
2.1
0.55
0.6
0.25
0.3
V
8
8
9.5
9.8
15.85
15.8
0.1
0.15
0.2
V
V
V
V
V
V
V
V
15.9
V
0.85
25°C
0
0.85
TEST CONDITIONS
VO = VDD/2, VI = VDD/2
VDD = 10V
TA(1)
25°C
Full Range
1
MIN
TYP
1.7
MAX
2
3
VDD
VDD–1
1
1.5
1
1.5
mV/mA
UNIT
mA
mA
V
Buffer 6
Buffer 1
Buffer 2/3
High-level output
out ut
voltage
Buffer 4/5
Buffer 6
Buffer 1
Buffer 2/3
Low-level output
out ut
voltage
Buffer 4/5
Buffer 6
5
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