18 + 1 channel buffer for TFT-LCD panels
Features
■ Wide supply voltage: 5.5V to 16.8V
■ Low operating current: 8mA typical at 25°C
■ Bandwidth at -3dB: 3.5MHz
■ High output current COM amplifier: ±150mA
■ Industrial temperature range: -40°C to +95°C
■ Small package: TQFP48 ePad
TSL1018
7 x 7mm TQFP48 ePad
Application
■ TFT liquid crystal display (LCD)
Description
The TSL1018 is composed of 18 + 1 channel
buffers which are used to buffer the reference
voltage for gamma correction in thin film transistor
(TFT) liquid crystal displays (LCD).
One "COM" amplifier is able to deliver high output
current value, up to ±150mA. Amplifiers A and B
feature positive single supply inputs for common
mode voltage, thus can be used for highest
gamma voltages. The amplifiers C to R inclusive,
and the COM amplifier, feature negative single
supply inputs and are dedicated to the lowest
gamma voltages.
The TSL1018 is fully characterized and
guaranteed over a wide industrial temperature
range (-40 to +95°C).
VSS
VSS
VDD
VDD
Pin connections (top view)
COMo
COMo
VDD
VDD
VSS
VSS
VSS
VSS
42 41
47
48 44 43
47
48 44 43
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
131415 161718 19 20 21 22
131415 161718 19 20 21 22
VDD
VDD
42 41
R
R
O
O
N
N
M
M
L
L
K
K
J
J
I
I
H
H
G
G
F
F
E
E
D
D
C
C
B
B
VSS
VSS
COMi
COMi
VDD
VDD
40 39 38 3746 45
40 39 38 3746 45
36
23 24
23 24
36
35
35
34
34
33
33
32
32
31
31
30
30
VSS
VSS
29
29
VDD
VDD
28
28
27
27
26
26
25
25
Q
Q
P
P
A
A
July 2008 Rev 2 1/15
www.st.com
15
Absolute maximum ratings and operating conditions TSL1018
1 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
V
V
I
OUT
Supply voltage 18 V
DD
Input voltage V
IN
Output current (A to R buffers)
Output current (COM buffer)
-0.5V to V
SS
40
150
+0.5V V
DD
Thermal resistance junction to ambient for TQFP48
R
THJA
P
D
T
LEAD
T
STG
T
J
ESD
1. PD is calculated with T
2. Human body model: a 100pF capacitor is charged to the specified voltage, then discharged through a
1.5kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
3. Machine model: a 200pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5Ω). This is done for all couples of
connected pin combinations while the other pins are floating.
4. Charged device model: all pins and package are charged together to the specified voltage and then
discharged directly to the ground through only one pin.
Table 2. Operating conditions
ePad not thermally connected to PCB
ePad thermally connected to PCB
Power dissipation
(1)
for TQFP48 ePad
ePad not thermally connected to PCB
ePad thermally connected to PCB
85
36
1470
3470
Lead temperature (soldering 10 seconds) 260 °C
Storage temperature -65 to +150 °C
Junction temperature 150 °C
(3)
(2)
(4)
THJA
2000
200
1500
.
Human body model (HBM)
Charged device model (CDM)
= 25°C, TJ = 150°C and R
amb
mA
°C/W
mW
VMachine model (MM)
Symbol Parameter Value Unit
T
V
amb
Supply voltage (VDD - VSS) 5.5 to 16.8 V
CC
Ambient temperature -40 to +95 °C
Input voltages for buffers A & B V
V
IN
Input voltages for buffers C to R & COM V
2/15
+ 1.5V to V
SS
to VDD - 1.5V
SS
DD
V
TSL1018 Typical application schematics
2 Typical application schematics
Figure 1. Typical application schematic for the TSL1018
Vcc
43
8
16
29
41
VDD
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
17
15
14
13
12
11
10
9
6
532
4
3
1
48
47
46
Gamma 17
Gamma 16
Gamma 15
Gamma 14
Gamma 13
Gamma 12
Gamma 11
Gamma 10
Gamma 9
Gamma 8
Gamma 7
Gamma 6
Gamma 5
Gamma 4
Gamma 3
Gamma 2
Gamma 1
Gamma 0
To colunm driver
Gnd
+
Cs
10uF
R1
20
R2
21
R3
22
R4
23
R5
24
R6
25
R7
26
R8
27
R9
28
R10
31
R11
R12
33
R13
34
R14
35 2
R15
36
R16
37
R17
38
R18
39
R19
Com Ref. Voltage
Gnd
40
7
181930
VSS
Gnd
42
COM
44
45
TSL1018
VCOM
Note that:
● Amplifiers A & B have their input voltages in the range V
+1.5V to VDD. This is why
SS
they must be used for high level gamma correction voltages.
● Amplifiers C to R have their input voltages in the rangeV
to VDD-1.5V. This is why
SS
they must be used for medium-to-low level gamma correction voltages.
● Amplifier COM has its input voltage range from V
3/15
toVDD-1.5V.
SS
Electrical characteristics TSL1018
3 Electrical characteristics
Table 3. Electrical characteristics for T
= 25°C , VDD=+5V, VSS=-5V, RL=10kΩ, CL= 10pF
amb
(unless otherwise specified)
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
ΔV
R
C
V
V
I
OUT
Input offset voltage V
IO
Input offset voltage drift -40°C < T
IO
I
Input bias current
IB
Input impedance 1 GΩ
IN
Input capacitance 1.35 pF
IN
Output voltage low
OL
Output voltage high I
OH
Output current
PSRR Power supply rejection ratio V
I
SR
Supply current No load 8 11 mA
CC
Slew rate
(rising & falling edge)
Settling time Settling to 0.1%, V
t
s
BW Bandwidth at -3dB R
G
Phase margin RL=10kΩ, CL=10pF 60 degrees
m
Channel separation f=1MHz 75 dB
C
s
= 0V 12 mV
ICM
< +85°C 5 μV/°C
amb
= 0V, buffers A & B
V
ICM
V
= 0V, buffers C to R & COM
ICM
I
=-5mA
OUT
Buffers C to P
Buffers Q, R & COM
= 5mA for buffers A & B 4.82 4.87 V
OUT
-4.85
-4.92
140
70
-4.80
-4.85
(A to R buffers) ±40
COM buffer ±150
= 6.5 to 15.5V 80 100 dB
CC
OUT
< +4V
1.1 V/μs
=2V step 5 μs
OUT
-4V < V
20% to 80%
=10kΩ, CL=10pF 3.5 MHz
L
nA
V
mA
Note: Limits are 100% production tested at 25°C. Behavior at the temperature range limits is
guaranteed through correlation and by design.
4/15
TSL1018 Electrical characteristics
Figure 2. Supply current vs. supply voltage
Current consumption (mA)
for various temperatures
12
T
=-40°C
T
AMB
AMB
=+95°C
10
T
=+25°C
AMB
8
6
4681012141618
Power supp ly voltage (V)
Figure 3. Output offset voltage (eq. VIO) vs.
temperature
1.0
VCC=5.5 V, 10V, 1 6.8V
0.5
0.0
Output offset voltage (mV)
-0.5
-1.0
-40-20 0 20406080
Ambient Temperature (°C)
Figure 4. Input current (IIB) vs. temperature Figure 5. Input current (IIB) vs. temperature
120
100
Buffers A & B
VCC=5.5V, 10V, 16.8V
80
120
100
Buffe rs C to COM
VCC=5.5 V, 10 V, 16.8V
80
60
40
Input bias current (nA)
20
0
-40-20 0 20406080
Ambient Temperature (°C)
Figure 6. Output current capability vs.
temperature
200
150
100
50
0
-50
Output current (mA)
-100
-150
-200
Buffers A & B
-40-200 20406080
Ambient Temperature (°C)
VCC=10VVCC=5.5V
VCC=16.8V
60
40
Input bias current (nA)
20
0
-40-20 0 20406080
Ambient Temperature (°C)
Figure 7. Output current capability vs.
temperature
80
60
40
20
0
-20
Output current (mA)
-40
-60
-80
VCC=5.5V
-40-20 0 20406080
Ambient Tem perature (°C)
VCC=10V , 16.8V
Buffers C to R
5/15
Electrical characteristics TSL1018
Figure 8. Output current capability vs.
temperature
200
100
0
VCC=5.5V
Output current (mA)
-100
Buffer COM
-200
-40-200 20406080
Ambient Temperature (°C)
VCC=10V, 16.8V
Figure 10. Low level voltage drop vs.
temperature
200
160
120
Low level voltage drop (mV)
VCC = 5.5V
80
Buffers Q & R
40
Iout = 5mA
0
-40 -20 0 20 40 60 80 100
Temperature (°C)
VCC = 10V, 16.8V
Figure 9. High level voltage drop vs.
temperature
200
VCC=16.8V
150
100
High level voltage drop (mV)
VCC=5.5V
50
0
-40-200 20406080
VCC=10V
Buffers A & B
Iout=5m A
Ambient Temperature (°C )
Figure 11. Low level voltage drop vs.
temperature
120
100
80
60
40
Low level voltage drop (mV)
20
0
-40 -20 0 20 40 60 80 100
VCC = 5.5V
Buffer CO M
Iout = 5mA
VCC = 10V, 16.8V
Temperature (°C)
Figure 12. Voltage output high (VOH) vs.
output current - buffers A & B
5.5
T
=-40°C
T
AMB
AMB
=+95°C
5.0
4.5
High level output voltage (V)
4.0
Buffers A & B
VCC = 5.5V
3.5
0 5 10 15 20 25 30
T
=+25°C
AMB
Output current (mA)
6/15
Figure 13. Voltage output high (VOH) vs.
output current - buffers A & B
10.0
9.8
9.6
9.4
High level output voltage (V)
9.2
Buffers A & B
VCC = 10V
9.0
0 5 10 15 20 25 30
T
AMB
Output curre nt (mA )
=+95°C
T
AMB
=-40°C
T
AMB
=+25°C
TSL1018 Electrical characteristics
Figure 14. Voltage output high (VOH) vs.
output current - buffers A & B
16.8
T
16.6
16.4
T
=+95°C
High level output voltage (V)
16.2
16.0
0 5 10 15 20 25 30
AMB
Buffers A & B
VCC = 16.8 V
Outpu t curren t (mA)
AMB
=-40°C
T
AMB
=+25°C
Figure 16. Voltage output low (VOL) vs. output
current - buffers C to P
1.2
Buffers C to P
AMB
VCC = 10V
=+25°C
1.0
0.8
0.6
T
AMB
=+95°C
T
Figure 15. Voltage output low (VOL) vs. output
current - buffers C to P
1.2
1.0
T
AMB
=+95°C
Buffe rs C to P
VCC = 5.5V
0.8
T
0.6
T
AMB
=-40°C
0.4
Low level output voltage (V)
AMB
=+25°C
0.2
0.0
-30-25-20-15-10 -5 0
Output current (mA)
Figure 17. Voltage output low (VOL) vs. output
current - buffers C to P
1.2
1.0
0.8
0.6
T
AMB
=+95°C
Buffers C to P
VCC = 16.8V
T
=+25°C
AMB
0.4
T
=-40°C
Low level output voltage (V)
AMB
0.2
0.0
-30 -25 -20 -15 -10 -5 0
Outp ut current (m A)
Figure 18. Voltage output low (VOL) vs. output
current - buffer Q, R & COM
1.6
1.2
T
AMB
=+95°C
0.8
Low level output voltage (V)
0.4
T
=-40°C
AMB
0.0
-50 -4 0 -30 -20 -1 0 0
Output current (mA)
Buffers Q, R & COM
VCC = 5.5V
T
=+25°C
AMB
0.4
Low level output voltage (V)
T
=-40°C
AMB
0.2
0.0
-30 -25 -20 -15 -10 -5 0
Output current (mA)
Figure 19. Voltage output low (VOL) vs. output
current - buffer Q, R & COM
2.0
Buffers Q , R & CO M
T
=+95°C
AMB
1.5
1.0
Low level output voltage (V)
0.5
T
=-40°C
AMB
0.0
-100 -80 -60 -40 -20 0
Output current (mA)
VCC = 10V
T
=+25°C
AMB
7/15
Electrical characteristics TSL1018
Figure 20. Voltage output low (VOL) vs. output
Figure 21. Positive slew rate vs. temperature
current - buffer Q, R & COM
2.0
T
1.5
1.0
Low level output voltage (V)
0.5
T
=-40°C
AMB
0.0
-100 -80 -60 -40 -20 0
=+95°C
AMB
Output current (mA)
Buffers Q, R & COM
VCC = 16.8V
T
=+25°C
AMB
2.0
VCC=10V
1.5
1.0
VCC=5.5V
Positive Slew Rate (V/µs)
0.5
Buffers A & B
0.0
-40-20 0 20406080
Ambient Temperature (°C)
VCC=16.8V
Figure 22. Positive slew rate vs. temperature Figure 23. Positive slew rate vs. temperature
2.0
VCC=16.8V
1.5
2.0
1.5
VCC=10V
VCC=16.8V
1.0
VCC=5.5V
Positive Slew rate (V/µs)
0.5
Buf fers C to R
0.0
-40-200 20406080
Ambient Temperature (°C)
VCC=10V
1.0
Positive Slew Rate (V/µs)
VCC=5.5V
0.5
Buffer COM
0.0
-40-20 0 20406080
Ambient tem perature (°C)
Figure 24. Negative slew rate vs. temperature Figure 25. Negative slew rate vs. temperature
2.0
1.5
1.0
Negative Slew Rate (V/µs)
0.5
0.0
-40-20 0 20406080
VCC=10V
VCC=5.5V
Ambient Tem perature (°C)
VCC=16.8V
Buffers A & B
2.0
1.5
1.0
Negative Slew Rate (V/µs)
0.5
0.0
VCC=10V
Buf fers C to R
-40-20 0 20406080
Ambient Temperature (°C)
VCC=16.8V
VCC=5.5V
8/15
TSL1018 Electrical characteristics
Figure 26. Negative slew rate vs. temperature Figure 27. Large signal response -
buffers A & B
2.0
1.5
1.0
Negative Slew Rate (V/µs)
0.5
0.0
VCC=10V
VCC=5.5V
-40-200 20406080
Ambient Temperature (°C)
VCC=16.8V
Buffer COM
Figure 28. Large signal response -
buffers A & B
4
3
2
1
0
Vout (V)
-1
-2
-3
-4
-10123456
Time (µs)
Buffers A & B
VCC=10V
T
AMB
ZL=10kΩ//16pF
=+25°C
4
3
2
Buffers A & B
1
VCC=10V
T
=+25°C
AMB
0
ZL=10kΩ //16pF
Vout (V)
-1
-2
-3
-4
-10123456
Time (µs)
Figure 29. Large signal response -
buffers C to R
4
3
2
Buffers C to R
1
VCC=10V
T
=+25°C
AMB
0
Vout (V)
ZL=10kΩ //16pF
-1
-2
-3
-4
-10123456
Time (µs)
Figure 30. Large signal response -
buffers C to R
4
3
2
1
0
Vout (V)
-1
-2
-3
-4
-10123456
Time (µs)
Buffers C to R
VCC=10V
T
AMB
ZL=10kΩ//16pF
=+25°C
Figure 31. Large signal response -
buffer COM
4
3
2
Buffer COM
1
VCC=10V
T
=+25°C
AMB
0
ZL=10kΩ//16pF
Vout (V)
-1
-2
-3
-4
-10123456
Time (µs)
9/15
Electrical characteristics TSL1018
Figure 32. Large signal response -
buffer COM
4
3
2
1
0
Vout (V)
-1
-2
-3
-4
-101234567
Time (µs)
Buffer COM
VCC=10V
T
AMB
ZL=10kΩ //16pF
Figure 34. Small signal response -
buffers C to R
0.15
0.10
0.05
0.00
Vout (V)
-0.05
Buffers C to R
VCC=10V
T
=+25°C
AMB
ZL=10kΩ//16pF
Ve=100mV
pp
=+25°C
Figure 33. Small signal response -
buffers A & B
0.15
0.10
0.05
0.00
Vout (V)
-0.05
-0.10
-0.15
0123
Buffers A & B
VCC=10V
T
=+25°C
AMB
ZL=10kΩ //16pF
Ve=100mV
pp
Time (µs)
Figure 35. Small signal response -
buffer COM
0.15
0.10
0.05
0.00
Vout (V)
-0.05
Buffer COM
VCC=10V
T
=+25°C
AMB
ZL=10kΩ//16pF
Ve=100mV
pp
-0.10
-0.15
0123
Time (µs)
Figure 36. Output voltage response to current
transient - buffers A & B
2.0
1.5
1.0
Vout (V)
0.5
0.0
-0.5
-10123
Time (µs)
Buffers A & B
VCC=10V
T
=+25°C
AMB
ΔI=0mA to 30mA
-0.10
-0.15
0123
Time (µs)
Figure 37. Output voltage response to current
transient - buffers A & B
0.5
0.0
-0.5
Vout (V)
-1.0
-1.5
-1 0 1 2 3
Time (µs)
Buffers A & B
VCC=10V
T
=+25°C
AMB
ΔI=30mA to 0mA
10/15
TSL1018 Electrical characteristics
Figure 38. Output voltage response to current
transient - buffers C to R
2.0
1.5
1.0
Vout (V)
0.5
0.0
-0.5
-10123
Time (µs)
Buffers C to R
VCC=10V
T
=+25°C
AMB
ΔI=0mA to 30mA
Figure 40. Output voltage response to current
transient - buffer COM
5
4
3
Buffer COM
VCC=10V
T
=+25°C
AMB
ΔI=0 mA to 100m A
Figure 39. Output voltage response to current
transient - buffers C to R
0.5
0.0
-0.5
Vout (V)
-1.0
-1.5
-10123
Time (µs)
Buffers C to R
VCC=10V
T
=+25°C
AMB
ΔI=30mA to 0mA
Figure 41. Output voltage response to current
transient - buffer COM
1
0
-1
2
Vout (V)
1
0
-1
02468
Time (µs)
Figure 42. Output voltage response to current
transient - buffer COM
1
0
-1
-2
-3
Vout (V)
-4
-5
-6
-5 0 5 10 15 20 25
Time (µs)
Buffer COM
VCC=10V
T
=+25°C
AMB
ΔI=100mA to -100mA
-2
Vout (V)
-3
-4
-5
02468
Buffer CO M
VCC=10V
T
=+25°C
AMB
ΔI=100m A to 0mA
Time (µs)
Figure 43. Output voltage response to current
transient - buffer COM
6
5
4
3
2
Vout (V)
1
0
-1
-5 0 5 10 15 20 25 30
Buffer COM
VCC=10V
T
=+25°C
AMB
ΔI=-100mA to +10 0mA
Time (µs)
11/15
Package information TSL1018
4 Package information
In order to meet environmental requirements, STMicroelectronics offers these devices in
ECOPACK
®
packages. These packages have a lead-free second level interconnect. The
category of second level interconnect is marked on the package and on the inner box label,
in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics
trademark. ECOPACK specifications are available at: www.st.com
.
Table 4. TQFP48 ePad package mechanical data
Dimensions
Ref.
Min. Typ. Max. Min. Typ. Max.
A1.200.047
A1 0.05 0.15 0.002 0.006
A2 0.95 1.00 1.05 0.037 0.039 0.041
b 0.17 0.22 0.27 0.007 0.009 0.011
c 0.09 0.20 0.004 0.008
D 8.80 9.00 9.20 0.346 0.354 0.362
D1 6.80 7.00 7.20 0.268 0.276 0.283
D2 2.00 0.079
D3 5.50 0.217
Millimeters Inches
E 8.80 9.00 9.20 0.346 0.354 0.362
E1 6.80 7.00 7.20 0.268 0.276 0.283
E2 2.00 0.079
E3 5.50 0.217
e 0.50 0.020
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1.00 0.039
k 0°3.5°7° 0°3.5°7°
ccc 0.08 0.003
12/15
TSL1018 Package information
Figure 44. TQFP48 ePad package drawing
13/15
Ordering information TSL1018
5 Ordering information
Table 5. Order codes
Part number Temperature range Package Packing Marking
TSL1018IF
-40°C to +95°C TQFP48 ePad
TSL1018IFT Tape & reel
6 Revision history
Date Revision Changes
22-Mar-2007 1 Initial release.
15-Jul-2008 2
Tr ay
Modified I
Updated all curves (Figure 2 to Figure 43).
Added ESD charged device model value in Ta bl e 1 .
typical and maximum values in Ta bl e 3 .
CC
SL1018I
14/15
TSL1018
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