TSL1014
14 + 1 channel buffers for TFT-LCD panels
Features
■
■
■
■
■
■
■
Wide supply voltage: 5.5 V to 16.8 V
Low operating current: 6 mA typical at 25° C
Gain bandwidth product: 1 MHz
High current com amplifier: ±100 mA output
current
Industrial temperature range: -40° C to +85° C
Small package: TQFP48
Automotive qualification
Pin connections (top view)
VSS VDDVSSVDD
48 47 46 45
44 43 42
41 40 39 38 37
36
7 x 7mm TQFP48
Application
■
TFT liquid crystal display (LCD)
1
2
3
4
5
6
VSS 7
VDD 8
9
10
11
12
13
Com
N
M
L
K
J
I
H
G
F
E
D
C
14 15 16
VDD
Description
The TSL1014 is composed of 14 + 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 ±100mA. Amplifiers A and B
feature positive single supply inputs for common
mode voltage behavior. The amplifiers C to N
inclusive, and the COM amplifier, feature negative
single-supply inputs and are dedicated to the
highest and lowest gamma voltages.
The TSL1014 is fully characterized and
guaranteed over a wide industrial temperature
range (-40 to +85° C).
35
34
33
32
31 VSS
30 VDD
29
28
27
B
A
17 18 19 20 21 22 23 24
VSS
VSSVDD
26
25
August 2008
Rev 5
1/16
www.st.com
16
Absolute maximum ratings and operating conditions
TSL1014
1
Absolute maximum ratings and operating conditions
Table 1.
Symbol
V
CC
V
IN
I
OUT
I
SC
P
D
R
THJA
T
LEAD
T
STG
T
J
Absolute maximum ratings
Parameter
Supply voltage (V
DD
-V
SS
)
Input voltage
Output current (A to N buffers)
Output current (Com buffer)
Short circuit current (A to N buffers)
Short circuit current (Com buffer)
Power dissipation
(1)
for TQFP48
Thermal resistance junction to ambient for TQFP48
Lead temperature (soldering 10 seconds)
Storage temperature
Junction temperature
Human body model (HBM)
(2)
Value
18
V
SS
-0.5V to V
DD
+0.5V
30
100
±120
±300
1470
85
260
-65 to +150
150
2000
200
1500
V
Unit
V
V
mA
mA
mW
°C/W
°C
°C
°C
ESD
Machine model (MM)
(3)
Charged device model (CDM)
(4)
1. P
D
is calculated with T
amb
= 25° C, T
J
= 150° C and R
THJA
= 85° C/W for the TQFP48 package.
2. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a
1.5 kΩ 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 200 pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5
Ω).
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.
Symbol
V
CC
T
amb
V
IN
Operating conditions
Parameter
Supply voltage (V
DD
-V
SS
)
Ambient temperature
Input voltage (Buffers A & B)
Input voltage (Buffers C to N + COM)
Value
5.5 to 16.8
-40 to +85
V
SS
+1.5V to V
DD
V
SS
to V
DD
-1.5V
Unit
V
°C
V
2/16
TSL1014
Typical application schematics
2
Typical application schematics
Figure 1.
A typical application schematic for the TSL1014
Vcc
8 15 22 30 43 45
+
Cs
R1
10uF
R2
23
24
VDD
A
B
C
D
E
F
G
H
I
J
K
L
M
N
COM
20
18
13
12
11
10
9
6
5
4
3
2
1
48
Gamma 13
Gamma 12
Gamma 11
Gamma 10
Gamma 9
Gamma 8
Gamma 7
To colunm driver
Gamma 6
Gamma 5
Gamma 4
Gamma 3
Gamma 2
Gamma 1
Gamma 0
Gnd
R3
25
R4
26
R5
27
R6
28
R7
29
R8
32
R9
33
R10
34
R11
35
R12
36
R13
37
R14
38
Gnd
Com Ref. Voltage
39
47
VCOM
VSS
7 19 21 31 44 46
Gnd
Note that:
●
●
●
Amplifiers
A
&
B
have their input voltage in the range V
SS
+1.5 V to V
DD
. This is why
they must be used for high level gamma correction voltages.
Amplifiers
C to N
have their input voltage in the range V
SS
to V
DD
-1.5 V. This is why
they must be used for medium-to-low level gamma correction voltages.
Amplifier COM has its input voltage range from V
SS
to V
DD
-1.5 V.
3/16
Electrical characteristics
TSL1014
3
Table 3.
Symbol
V
IO
ΔV
IO
I
IB
R
IN
C
IN
V
OL
Electrical characteristics
Electrical characteristics for TSL1014IF/TSL1014IFT
T
amb
= 25°C, V
DD
= +5V, V
SS
= -5V, R
L
= 10kΩ C
L
= 10pF (unless otherwise specified)
,
Parameter
Input offset voltage
Input offset voltage drift
Input bias current
Input impedance
Input capacitance
Output voltage low
I
OUT
= -5mA
Buffers C to L
Buffers M, N & COM
I
OUT
= 5mA for positive single-supply
buffers (A & B)
(A to N buffers)
I
OUT
PSRR
I
CC
SR
t
s
BW
G
m
C
s
Output current
Com buffer
Power supply rejection ratio
Supply current
Slew rate
(rising & falling edge)
Settling time
Bandwidth at -3dB
Phase margin
Channel separation
V
CC
= 6.5 to 15.5V
No load
-4V < V
OUT
< +4V
20% to 80%
Settling to 0.1%, V
OUT
=2V step
R
L
=10kΩ C
L
=10pF
,
R
L
=10kΩ C
L
=10pF
,
f=1MHz
80
±100
100
6
1
5
2
60
75
8.4
dB
mA
V/μs
μs
MHz
degrees
dB
4.82
V
ICM
= 0V
T
Min
< T
amb
< T
Max
V
ICM
= 0V, buffers A & B
V
ICM
= 0V, buffers C to N & COM
1
1.35
-4.85
-4.92
4.87
±30
mA
-4.80
-4.85
5
140
70
Test conditions
Min.
Typ.
Max.
12
Unit
mV
μV/°C
nA
GΩ
pF
V
V
OH
Output voltage high
V
Note:
Limits are 100% production tested at 25°C. Behavior at the temperature range limits is
guaranteed through correlation and by design.
4/16
TSL1014
Table 4.
Symbol
V
IO
ΔV
IO
Electrical characteristics
Electrical characteristics for TSL1014IYF/TSL1014IYFT (automotive grade)
T
amb
= 25°C, V
DD
= +5V, V
SS
= -5V, R
L
= 10kΩ C
L
= 10pF (unless otherwise specified)
,
Parameter
Input offset voltage
Input offset voltage drift
Test conditions
V
ICM
= 0V
T
Min
< T
amb
< T
Max
T
Min
< T
amb
< T
Max
V
ICM
= 0V, buffers A & B
T
Min
< T
amb
< T
Max
5
140
280
nA
V
ICM
= 0V, buffers C to N & COM
T
Min
< T
amb
< T
Max
70
140
1
1.35
I
OUT
= -5mA
Buffers C to L
T
Min
< T
amb
< T
Max
Buffers M, N & COM
T
Min
< T
amb
< T
Max
-4.85
-4.80
-4.76
-4.85
-4.83
V
GΩ
pF
Min.
Typ.
Max.
12
Unit
mV
μV/°C
I
IB
Input bias current
R
IN
C
IN
Input impedance
Input capacitance
V
OL
Output voltage low
V
-4.92
V
OH
Output voltage high
I
OUT
= 5mA for positive single-supply
buffers (A & B)
T
Min
< T
amb
< T
Max
(A to N buffers)
4.82
4.80
4.87
±30
I
OUT
PSRR
I
CC
SR
t
s
BW
G
m
C
s
Output current
Com buffer
Power supply rejection ratio
Supply current
Slew rate
(rising & falling edge)
Settling time
Bandwidth at -3dB
Phase margin
Channel separation
V
CC
= 6.5 to 15.5V
T
Min
< T
amb
< T
Max
No load
T
Min
< T
amb
< T
Max
-4V < V
OUT
< +4V
20% to 80%
Settling to 0.1%, V
OUT
=2V step
,
R
L
=10kΩ C
L
=10pF
R
L
=10kΩ C
L
=10pF
,
f=1MHz
80
6
8.4
9
±100
100
mA
dB
mA
V/μs
μs
MHz
degrees
dB
1
5
2
60
75
Note:
Limits are 100% production tested at 25°C. Behavior at the temperature range limits is
guaranteed through correlation and by design.
5/16
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