TOSHIBA T6LE2

T6LE2
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
T6LE2
Gate Driver for TFT LCD Panels
The T6LE2 is a 300 / 263 / 256-channel output gate driver for
TFT LCD panels.
Unit: mm
T6LE2
Features
• LCD drive output pins
: Switchable 300 / 263 / 256 pins
• LCD drive voltage
: max 43.5 V
• Data transfer method
: Bidirectional shift register
• Operating temperature
: −20 to 75°C
• Package
: COF
User Area Pitch
IN
OUT
Please contact Toshiba or a distributor for
the latest COF specification and product
line-up.
COF (Chip On Film)
Application
Module for PC monitors, LCDs for TV and Module for amusement
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T6LE2
Block Diagram
DO/I
DI/O
CPVL/R
Shift register
U/D
MODE1
Input circuit unit
MODE2
OE L/R
Control circuit unit
XDON
VGG
Output circuit unit
VEE
VDD
VSS
G1
2
G2
G3
G298 G299 G300
2006-09-20
T6LE2
Pin Assignment
G300
G299
G298
327
326
325
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
T6LE2
(chip top view)
G3
G2
G1
30
29
28
VGG
VEE
VDD
VSS
VDD
DO/I
(VSS)
MODE2
(VDD)
OE R
CPVR
VSS
XDON
(VDD)
U/D
(VSS)
CPVL
OE L
(VSS)
(VDD)
MODE1
(VSS)
DI/O
VSS
VDD
VEE
VGG
The above diagram shows the device’s pin configuration only and does not necessarily correspond to the pad
layout on the chip. Please contact Toshiba or our distributors for the latest COF specification.
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T6LE2
Pin Function
Pin Name
I/O
Function
Vertical shift clock, output enable input / output select pin
These pins are used to input and output shift data. These pins are switched between input and
output by setting the U/D pin as shown below.
DI/O
DO/I
I/O
U/D
DI/O
DO/I
H
Input
Output
L
Output
Input
• When set for input
This pin is used to feed data into the shift registers at the first stage of the LCD driver. The data is
latched into the shift registers at the rising edge of CPVL/R.
• When set for output
When two or more T6LE2 are cascaded, this pin outputs the data to be fed into the next stage.
This data changes state synchronously with the falling edge of CPVL/R.
Transfer direction select / vertical shift clock, output enable input / output select pin
This pin specifies the direction in which data is transferred through the shift registers.
The shift register data is shifted synchronously with the rising edge of CPV as follows:
When U/D is high, data is shifted in the direction
U/D = “H”: G1 → G2 → G3 → G4 → ··· → G300
When U / D is low, the direction is reversed to give
U/D = “L”: G300 → G299 → G298 → G297 → ··· → G1
This pin is used to perform input / output settings for CPVL, CPVR, OE L, OE R.
U/DL
U/DR
I/O
U/D
L
H
Input
Output
CPVR
CPVL
OE R
OE L
CPVL
CPVR
OE L
OE R
The voltage applied to this pin must be a DC-level voltage that is either high (VDD) or low (VSS).
CPVL
CPVR
OE L
OE R
I/O
I/O
Vertical shift clock
• When set for input:
This is the shift clock for the shift registers. Data is shifted through the shift registers
synchronously with the rising edge of CPVL/R.
• When set for output:
The signal input to CPVL/R is output to CPVR/L asynchronous to other signals.
These pins are switched between input and output by setting the U/D pin as below.
U/D
CPVL
CPVR
H
Input
Output
L
Output
Input
Output enable pin
When set for input:
These signals control the data appearing at the LCD panel drive pins (G1 through G300).
OE L/R doesn’t synchronize with the CPVL/R.
When OE L/R is low : outputs shift data and data contents.
When OE L/R is high : controls the LCD panel drive output to VEE level.
When set for output:
The signal input to OE L/R is output to OE R/L.
These pins are switched between input and output by setting the U/D pin as below.
U/D
OE L
OE R
H
Input
Output
L
Output
Input
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T6LE2
Pin Name
I/O
Function
Output channels select pins
This signal selects 300 / 263 / 256-pin mode for the LCD panel driver.
MODE1
MODE2
I
MODE1
MODE2
LCD drive
output pins
Non-output pins
H
H
300-out
⎯
H
L
263-out
G133 to G169 (VEE level )
L
H
256-out
G129 to G172 (VEE level )
L
L
⎯
XDON
I
Display-ON input pin
When XDON = low, the VGG voltage is output all output pins irrespective of the shift data and the
content of input data. After, the contents of the shift registers becomes unfixed the data.
XON operates asynchronously with CPV. This pin is pulled-up to the VDD.
Since all LCD drive outputs output (G1 to G300) the VGG level, much current may generate them
momentarily.
When 263 / 256-pin mode, unapplied LCD panel drive pins fixed VEE.
The voltage applied to this pin must be a DC-level voltage that is either high (VDD) or low (VSS).
G1 to G300
O
LCD panel drive pins
These pins output the shift register data or the voltage of VGG or VEE depending on the control
signals OE and XDON.
VGG
⎯
Power supply for LCD drive
VEE
⎯
Power supply for LCD drive
VDD
⎯
Power supply for the internal logic
The (VDD) is the MODE1, MODE2 and U/D pin for connection.
VSS
⎯
Power supply for the internal logic
The (VSS) is the MODE1, MODE2 and U/D pin for connection.
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T6LE2
Device Operation
z Shift data transfer method
MODE1
MODE2
Output
Mode
H
H
300-out
H
L
263-out
L
H
256-out
L
L
Shift Data
U/D
Pin
Input
Output
H
DI/O
DO/I
G1 → G2 → G3 → G4 → ··· → G300
L
DO/I
DI/O
G300 → G299 → G298 → ··· → G1
H
DI/O
DO/I
G1 → G2 → G3 → G4 → ··· → G132 → G170 → ··· → G300
L
DO/I
DI/O
G300 → G299 → G298 → ··· → G170 → G132 →··· → G1
H
DI/O
DO/I
G1 → G2 → G3 → G4 → ··· → G128 → G173 → ··· → G300
L
DO/I
DI/O
G300 → G299 → G298 → ··· → G173 → G128 →··· → G1
Data Transfer Method
Don't use
The input data (DI/O or DO/I) is latched into the internal register synchronously with the rising edge of the
shift clock CPV. At the same time that the data is shifted to the next register at the next rise of CPV, new
vertical shift data is latched into.
In the output operation, the data in the last shift register (G300 or G1) is output synchronously with the
falling edge of CPV. (The output high voltage is the VDD level; the output low voltage is the VSS level.)
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T6LE2
Timing Diagram 1
(300-out mode, U/D = high level, MODE1 = high level, MODE2 = high level)
DI/O
(Input)
1
2
3
4
5
300
301
CPVL/R
OE L/R
XDON
G1
G2
G3
G4
G300
DO/I
(Output)
: This part is output which is controlled ( fixed to VEE ) by OE pin
Timing Diagram 2
(300-out mode, U/D = low level, MODE1 = high level, MODE2 = high level)
DO/I
(Input)
1
2
3
4
5
300
301
CPVL/R
OE L/R
high level
XDON
G300
G299
G298
G297
G1
DI/O
(Output)
: This part is output which is controlled ( fixed to VEE ) by OE pin
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T6LE2
Timing Diagram 3
(263-out mode, U/D = high level, MODE1 = high level, MODE2 = low level)
DI/O
(Input)
1
2
3
4
5
263
264
CPVL/R
OE L/R
high level
XDON
G1
G2
G3
G4
G133 to G169
VEE
G300
DO/I
(Output)
: This part is output which is controlled ( fixed to VEE ) by OE pin
Timing Diagram 4
(256-out mode, U/D = high level, MODE1 = low level, MODE2 = high level)
DI/O
(Input)
1
2
3
4
5
256
257
CPVL/R
OE L/R
high level
XDON
G1
G2
G3
G4
G129 to G172
VEE
G300
DO/I
(Output)
: This part is output which is controlled ( fixed to VEE ) by OE pin
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2006-09-20
T6LE2
Absolute Maximum Ratings (VSS = 0 V)
Parameter
Symbol
Rating
Unit
Supply voltage (1)
VDD
−0.3 to 4.0
Supply voltage (2)
VGG
−0.3 to 48.0
Supply voltage (3)
VEE
−20.0 to 0.3
Supply voltage (4)
VGG − VEE
−0.3 to 45.0
Input voltage
VIN
−0.3 to VDD + 0.3
Storage temperature
Tstg
−55 to 125
V
°C
Recommended Operating Conditions (VSS = 0 V)
Parameter
Symbol
Rating
Supply voltage (1)
VDD
2.3 to 3.6
Supply voltage (2)
VGG
10 to 35
Supply voltage (3)
VEE
−15 to −5
Supply voltage (4)
VGG − VEE
15.0 to 43.5
Operating temperature
Topr
−20 to 75
°C
Operating frequency
fCPV
150 (max)
kHz
CL
300 (max)
pF/PIN
Output Load capacitance
Unit
V
Electrical Characteristics
DC Characteristics
(VGG − VEE = 30.0 to 43.5 V, VDD = 2.3 to 3.6 V, VSS = 0 V, Ta = −20 to 75°C)
Parameter
Low Level
Symbol
Test Conditions
Min
Max
⎯
VSS
0.3 ×
VDD
VDD
VIL1
⎯
Input voltage (1)
High Level
VIH1
⎯
0.7 ×
VDD
Low Level
VIL2
⎯
VSS
(0.3 ×
VDD)
High Level
VIH2
⎯
(0.7 ×
VDD)
VDD
Low Level
VOL
VSS
VSS +
0.4
⎯
Input voltage (2)
IOL = 40 μA
⎯
Output voltage
Output
resistance
Test
circuit
High Level
VOH
Low Level
ROL
High Level
ROH
Input leakage current
IIN1
IIN2
Current consumption (1)
IGG
Current consumption (2)
IDD
Current consumption (3)
IEE
IOH = −40 μA
⎯
⎯
⎯
VOUT = VEE + 0.5 V
VOUT = VGG − 0.5 V
⎯
VIN = VDD
no load
(Note2)
VDD −
0.4
VDD
⎯
1000
−1
1
−1
1
⎯
T.B.D.
⎯
T.B.D.
⎯
T.B.D.
Unit
Relevant
V
(Note1)
V
XDON
V
DI/O
DO/I
Ω
G1 to G300
μA
(Note1)
XDON
VGG
μA
VDD
VEE
Note1: Input pins : DI/O, DO/I, CPVL/R, OE L/R
Note2: fCPV = 50kHz, Shift data input : 60Hz, OE = low level, XDON = high level, MODE1 / MODE2 = high level
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T6LE2
AC Characteristics
VGG − VEE = 30.0 to 43.5 V, VDD = 2.3 to 3.6 V, VSS = 0 V, Ta = −20 to 75°C
、tfIN = 100ns (Max)
trIN = 100ns (Max)
Symbol
Test
circuit
Test Conditions
Min
Max
Unit
tCPV
⎯
⎯
⎯
150
kHz
CPV pulse width (H)
tCPVH
⎯
⎯
500
⎯
CPV pulse width (L)
tCPVL
⎯
⎯
500
⎯
Data set-up time
tsDI
⎯
⎯
200
⎯
Data hold time
thDI
⎯
⎯
200
⎯
OE enable time
twOE
⎯
⎯
1
⎯
Display-ON pulse width
twON
⎯
CL = 300 pF
100
⎯
Output delay time (1)
tpdDO
⎯
CL = 30 pF
⎯
250
Output delay time (2)
tpdG
⎯
CL = 300 pF
⎯
800
Output delay time (3)
tpdOE
⎯
CL = 300 pF
⎯
800
Output delay time (4)
tpdON
⎯
CL = 300 pF
⎯
10
μs
Output delay time (5)
tdlO
⎯
CL = 30 pF
⎯
50
ns
Parameter
Clock frequency
50%
50%
50%
50%
tsDI
DI/O, DO/I
(Input)
μs
ns
tCPVL
tCPVH
CPVL/R
ns
50%
thDI
50%
50%
tpdG
tpdG
50%
G1
VGG
50%
tpdG
G2 to G300
VEE
tpdG
50%
50%
VGG
VEE
CPVL/R
50%
50%
VGG
G300
tpdDO
DO/I, DI/O
(Output)
tpdDO
50%
VEE
50%
twOE
OE
50%
50%
tpdOE
G1 to G300
tpdOE
50%
50%
VGG
VEE
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2006-09-20
T6LE2
twON
XDON
50%
50%
tpdON
G1 to G300
tpdON
50%
50%
VGG
VEE
trIN
Input
OE L/R, CPVL/R
50%
Output
OE L/R, CPVL/R
80%
20% 20%
50%
tdlO
50%
tfIN
tdlO
50%
Power Supply Sequence
Turn power on in the order VDD → VEE → Input signal → VGG. Turn power off in th reverse order.
However, if can be turned off at the same time, VGG, VDD, Input signals and VEE under the condition of
VEE ≤ VSS ≤ Input signals ≤ VDD ≤ VGG.
The T6LE2 has a self Power on reset function. Keep the reset period : TrG ≥ 10μs
TrG
VGG
VDD
VSS
VEE
Instruction for operating circumstances
• Light striking a semiconductor device can generate electromotive force due to photoelectric effects. In some cases
this may cause the device to malfunction.
This is more likely to be affected for the devices in which the surface (back), or side of the chip is exposed. At the
design phase, please make sure that devices are protected against incident light from external sources. Please take
into account of incident light from external sources during actual operation and during inspection.
• Polyimide base film is hard and thin. Be careful not to injure yourself on the film or to scratch any other parts with the
film. Please design and manufacture products so that there is no chance of users touching the film after assembly, or
if they do that, there is no chance of them injuring themselves. When cutting out the film, please ensure that the film
shavings do not cause accidents. After use, please treat the leftover film and reel spacers as industrial waste.
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T6LE2
RESTRICTIONS ON PRODUCT USE
• The information contained herein is subject to change without notice. 021023_D
• TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc. 021023_A
• The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer’s own risk. 021023_B
• The products described in this document shall not be used or embedded to any downstream products of which
manufacture, use and/or sale are prohibited under any applicable laws and regulations. 060106_Q
• The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which
may result from its use. No license is granted by implication or otherwise under any patent or patent rights of
TOSHIBA or others. 021023_C
• Please use this product in compliance with all applicable laws and regulations that regulate the inclusion or use of
controlled substances.
Toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws
and regulations.
• The products described in this document are subject to foreign exchange and foreign trade control laws. 021023_E
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