ETC AAT7203-T5-T 41-channel buffer for tft lcd Datasheet

Advanced Analog Technology, Inc.
AAT7203
Details are subject to change without notice
4+1-CHANNEL BUFFER FOR TFT LCD
FEATURES
z
GENERAL DESCRIPTION
4+1-Channel:
4 Channels with an Output Current of
± 30mA (MAX); 1 Vcom with an Output
Current of ± 100mA (MAX)
z
Unity Gain Buffer Capable of Driving
Large Capacitive Loads
z
Input Range Matched to LCD Reference
Requirements
z
VDD Specified for 6.5V to 16V
z
TSSOP14 Package
The AAT7203 is a 4+1-channel buffer
designed for thin film transistor liquid crystal
display (TFT LCD). This device consists of a
Vcom buffer circuit, two rail-to-rail buffer
amplifier circuits, and 2 buffer amplifier
circuits. Each buffer is capable of driving
heavy capacitive loads and providing fast load
current ( Vcom : 100mA, and the others: 30mA).
AAT7203 comes in a compact TSSOP14
package, which makes it an ideal component
for space-sensitive designs of LCD monitors
and LCD TVs.
PIN CONFIGURATION
TOP VIEW
TSSOP14
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AAT7203
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NAME
VDD
I/O
I
Power Supply
o1
o2
o3
o4
O com
O
O
O
O
O
I
I
I
I
I
I
I
I
Buffer Channel 1 Output
Buffer Channel 2 Output
Buffer Channel 3 Output
Buffer Channel 4 Output
Com Buffer Output
Ground
Ground
Com Buffer Input
Buffer Channel 4 Input
Buffer Channel 3 Input
Buffer Channel 2 Input
Buffer Channel 1 Input
Power Supply
GND
GND
I com
i4
i3
i2
i1
VDD
DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
CHARACTERISTICS
Supply Voltage
SYMBOL
VDD
VALUE
+18
UNIT
V
Input Voltage
VI
−0.5 to VDD + 0.5
V
Output Voltage
VO
−0.5 to VDD + 0.5
V
Output Loading Current for Gamma,
Rail-to-Rail Buffer
Output Loading Current for Com Buffer
Maximum Junction Temperature
± 30
IL
mA
± 100
+125
mA
o
C
Operating Temperature
Storage Temperature
Lead Temperature (Soldering for 10
Seconds)
TJ
TC
− 20 to +85
o
Tstorage
− 45 to +125
o
---
260
o
C
C
C
Note: Values beyond absolute maximum ratings may cause permanent damage to the device.
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AAT7203
ELECTRICAL CHARACTTERISTICS (VDD=10V, TC=25oC UNLESS
OTHERWISE SPECIFIED)
POWER SUPPLY PERFORMANCE
PARAMETER
TEST CONDITIONS
Power Supply Rejection
Ratio
PSRR
VDD varies from 6.5V to
16.0V
IS
Supply Current
MN
TYP
MAX
UNITS
-
80
-
dB
-
6.3
-
mA
MIN
TYP
MAX
UNITS
INPUT CHARACTERISTICS
PARAMETER
Input Offset Voltage
Input Bias Current
TEST CONDITIONS
VOS
VI = VDD /2,
VO = VDD /2
-
2
12
mV
IB
VI = VDD /2,
VO = VDD /2
-
2
50
nA
Note 2: Slew rate is measured on rising and falling edges.
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Advanced Analog Technology, Inc.
AAT7203
ELECTRICAL CHARACTTERISTICS (VDD=10V, TC=25oC UNLESS
OTHERWISE SPECIFIED)
OUTPUT CHARACTERISTICS
PARAMETER
TEST CONDITIONS
VOL
Output Swing Low
VOH
Output Swing High
I L =5mA (Buffer 1, 4)
VI =0V
I L =10mA (Buffer 2, 3)
VI =1V
I L = − 5 mA (Buffer 1, 4)
VI =10V
I L = − 10 mA (Buffer 2, 3)
VI =9V
MIN
TYP
MAX
UNITS
-
0.08
0.15
V
-
1.02
1.05
V
9.85
9.92
-
V
8.95
8.98
-
V
-
5.02
5.04
V
VOL
I L =10mA, VI =5V
VOH
I L = − 10 mA, VI =5V
4.96
4.98
-
V
Output Swing (COM)
VOL
VOH
Short Circuit Current
I SC
I L =50mA, VI =5V
IL= − 50 mA, VI =5V
(Buffer 2,3 )
(Com Buffer, Buffer 1, 4)
4.95
-
5.03
4.97
± 70
± 180
5.05
-
V
V
mA
mA
Test Conditions
VI =2V to 8V,
20% to 80%
Min
Typ
Max
Units
-
1
-
V/ µs
-
5
-
µs
Output Swing
(Buffer 2,3)
AC CHARACTERISTICS
Parameter
Slew Rate (Note 2)
SR
Settling Time
ts
VI =4.5V to 5.5V
VI =5.5V to 4.5V
0.1%
0.1%
Note 2: Slew rate is measured on rising and falling edges.
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AAT7203
BLOCK DIAGRAM
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AAT7203
APPLICATION CIRCUIT
10Ω
1µF
10Ω
1µF
10Ω
1µF
10Ω
1µF
10Ω
1µF
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AAT7203
PACKAGE DIMENSION
TSSOP14
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AAT7203
PACKAGE DIMENSION (CONT.)
TSSOP14
SYMBOL
DIMENSIONS IN MILLIMETERS
DIMENSIONS IN INCHES
MIN
TYP
MAX
MIN
TYP
MAX
A
---
---
1.20
---
---
0.047
A1
0.05
---
0.15
0.002
---
0.006
A2
0.80
1.00
1.05
0.031
0.039
0.041
b
0.19
---
0.30
0.007
---
0.012
C
0.09
---
0.20
0.0035
---
0.0080
D
4.90
5.00
5.10
0.193
0.197
0.201
E
---
6.40
---
0.193
0.252
0.201
E1
4.30
4.40
4.50
0.170
0.173
0.177
e
---
0.65
---
---
0.026
---
L
0.45
0.60
0.75
0.0177
0.0240
0.0295
y
---
---
0.076
---
---
0.003
θ
0o
---
8o
0o
---
8o
Note:
1. CONTROLLING DIMENSION: MILLIMETERS
2. LEAD FRAME MATERIAL: OLIN C7025/EFTEC 64T
3. DIMENSION “D” DOES NOT INCLUDE MOLD FLASH, TIE BAR BURRS AND GATE BURRS. MOLD FLASH,
TIE BAR BURRS AND GATE BURRS SHALL NOT EXCEED 0.006” [0.15 MILLIMETERS] PER END. DIMENSION
“E1” DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010” [0.25
MILLIMETERS] PER SIDE.
4. DIMENSION “b” DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION
SHALL BE 0.003” [0.08 MILLIMETERS] TOTAL IN EXCESS OF THE “b” DIMENSION AT MAXIMUM MATERIAL
CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE
BETWEEN PROTRUSION AND AN ADJACENT LEAD TO BE 0.0028” [0.07 MILLIMETERS]
5. TOLERANCE:
± 0.010” [0.25 MILLIMETERS] UNLESS OTHERWISE SPECIFIED.
6. OTHERWISE DIMENSION FOLLOW ACCEPTABLE SPEC.
7. REFERENCE DOCUMENT: JEDEC SPEC MO-153
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Advanced Analog Technology, Inc.
AAT7203
ORDERING INFORMATION
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