Epson SED1751 Manuale utente
SED1751
SED1751
MLS Driver Chip Set EPSON i
Technical Manual
Contents
OVERVIEW...................................................................................................................................5-1
TERMINAL FUNCTIONS ..............................................................................................................5-3
ABSOLUTE MAXIMUM RATINGS................................................................................................5-9
SED1751
MLS Driver Chip Set EPSON 5–1
Technical Manual
OVERVIEW
Description
The SED1751 is an 120 output, 3-level low-resistance common (row) driver suitable for high-quality,
high-response-speed MLS (Multi Line Selection) driving.
The SED1751 receives signals from LCD controllers such as the SED1335, and when used is used in
conjunction with the SED1580, can be used to structure a 4-line MLS drive.
The SED1751 uses a slim-chip form that is useful for making LCD panels slimmer. It also supports reduced
logic system voltage operation, making it suitable for a broad range of applications.
The SED1751 has a pad layout supporting easy mounting, and supports bi-directional selection of driver
output order, and has the highest use efficiency for 1/240 and 1/480 duty panels.
Features
• LCD driver outputs......................................120
• Low output ON resistance
• High duty drive supported ...........................1/480 (Reference value)
• Broad range of LC drive voltages ...............+ 14 to + 42 V (VCC = 2.7 to 5.5 V)
• Output shift direction pin select is possible
• Can be switched between 100 and 120 outputs
• Non-biased display OFF function
• Logic system power source .........................2.7 V to 5.5 V
• LC power source offset bias can be adjusted relative to the VDDH and GND levels
• Slim chip shape
•D
0B .............................................................. Au Bump die
•T0A ...............................................................TCP
Pad Layout
Y
X
131
1
132
155
60
35
59
36
Chip size 12.19 mm ×2.38 mm
Pad pitch 80 µm (Min.)
Chip thickness 525 µm ±25 µm
1) Au Bump Specifications (SED1751DOB) Reference Values Only
Au vertical bump
Parallel to Scribe ×Perpendicular to Scribe ±Tolerance
Bump Size A 60 µm ×75 µm ±4 µm (Pad No. 1 to 35, 60 to 131)
Bump Size B 80 µm ×50 µm ±4 µm (Pad No. 36 to 59, 132 to 155)
Bump height 17 to 28 µm (The details specified in the acceptance specifications.)
SED1751
5–2 EPSON MLS Driver Chip Set
Technical Manual
Pad Coordinates
1VDDHL –5812 –1012
2+V1L –5717
3VCL –5622
4–V1L –5527
5 GNDL –5432
6 SHL –5094
7 SEL –4869
8VCC –4531
9 LSEL –4192
10 DOFF –3828
11 FR –3081
12 CSEL –2336
13 LP –1998
14 DM –1162
15 CIO2 –755
16 DM –347
17 DM 0
18 DM 347
19 CIO1 755
20 DM 1162
21 YD 1998
22 DM 2336
23 DM 2674
24 DM 3081
25 DM 3489
26 DM 3828
27 F1 4192
28 DM 4531
29 F2 4869
30 TEST1 5094
31 GNDR 5432
32 –V1R 5527
33 VCR 5622
34 +V1R 5717
35 VDDHR 5812
Pin Name X Y Pin Name X Y
36 COM1 5945 –902
37 COM2 –822
38 COM3 –742
39 COM4 –662
↓↓ ↓ ↓
57 COM22 5945 778
58 COM23 5945 858
59 COM24 5945 938
60 COM25 5709 1034
61 COM26 5549 1034
62 COM27 5389 1034
↓↓ ↓ ↓
93 COM58 429 1034
94 COM59 269
95 COM60 109
96 COM61 –109
97 COM62 –269
98 COM63 –429
↓↓ ↓ ↓
129 COM94 –5389 1034
130 COM95 –5549 1034
131 COM96 –5709 1034
132 COM97 –5945 938
133 COM98 –5945 858
134 COM99 –5945 778
↓↓ ↓ ↓
152 COM117 –5945 –662
153 COM118 –742
154 COM119 –822
155 COM120 –902
Units: µm
COMn XY coordinates:
COM1 to COM24: (5945, –902 + [80 ×(n–1)])
COM25 to COM60: (5709– [160 ×(n–25)],1034)
COM61 to COM96: (–109– [160 ×(n–61)],1034)
COM97 to COM120:(–5945, 938 – [80 ×(n–97)])
SED1751
MLS Driver Chip Set EPSON 5–3
Technical Manual
TERMINAL FUNCTIONS
Input
TEST1
Terminal Name I/O Function Number of
Terminals
COM1 to OCommon (row) output to drive LC. 120
COM120 Output transition occurs on falling edge of LP.
Carry signal I/O.
CIO1 I/O This is set to input or output depending on the level of 2
CIO2 the SHL input. Output transition occurs on falling edge
of LP.
YD I Frame start/pulse input, with terminator. (*1) 1
F1, F2 I Drive pattern select signal input, with terminator. (*1) 2
LP I Shift clock input for display data. 1
(Triggers on falling edge.) With terminator. (*1)
Shift direction select and CIO terminal I/O control input.
SHL I 1
The numbers in parentheses are for 100 output mode.
Select input for the number of COM output terminals:
SEL I 120 outputs ←→ 100 outputs 1
L: COM1 to COM120
H: COM9 to COM108
LSEL I 1/2 H operation select signal input. 1
L: Normal operation. H: 1/2 operation.
Chip select signal input for when a cascade connection
CSEL I is used. 1
L: Leading chip
H: Other chips
FR I LC drive output AC signal input. With terminator (*1) 1
LC display blanking control input. With a low level input,
DOFF Iall common outputs are temporarily set to the VClevel. 1
The contents of the latches are maintained. With
terminator (*1)
TEST1 I Test1 signal input. Normally tied at L. 1
VCC, GNDL,
Power
Power source for logic: 3
GNDR GND: 0 V , VCC: +2.7 to 5.5 V
VCL, VCR,LC Drive Power:
+V1L, +V1R,
Power
GND: 0 V, 8
-V1L, -V1R,VDDH: + 14.0 to 42.0 V, VDDH ≥+V1≥VC≥–V1≥GND
VDDHL, VDDHR
DM Dummy pad 11
Total 155
Note: *1
SHL Output Shift Direction CIO
CIO1 CIO2
L 1(9) →120(108) Input Output
H 120(108) →1(9) Output Input
SED1751
5–4 EPSON MLS Driver Chip Set
Technical Manual
VDDHL
GNDL
+V1L
VCL
–V1L
DOFF
GNDR
+V1R
VCR
–V1R
CIO2
LCD Driver: 120-bits
Level Shifter: 3x120-bits
Decoder
Bi-directional Shift Register: 30-bits
Data Register:
120-bits
VCC
TEST1
LP
YD
CIO1
COM 1 COM 120
SHL SEL LSEL CSEL
FR
F1
F2
Block Diagram
SED1751
MLS Driver Chip Set EPSON 5–5
Technical Manual
Explanation of Each Block
Shift Register
This is a bi-directional shift register used for transmitting common data. The display data shifts on the
falling edge of LP.
Level Shifter
The level shifter is a voltage level converter circuit which converts the signal voltage level from a logic
system level to the LC driver system voltage level.
LCD Driver
The LCD driver outputs the LC drive voltage.
The relationship between the display blanking signal DOFF, the field recognition signals F1 & F2, the AC
signal FR, and the common output voltage is as follows:
DOFF HL
FR L H —
F1,F2 1,1 0,1 1,0 0,0 1,1 0,1 1,0 0,0 —
Line 1 +V1+V1–V1+V1–V1–V1+V1–V1VC
Line 2 –V1+V1+V1+V1+V1–V1–V1–V1VC
Line 3 +V1–V1+V1+V1–V1+V1–V1–V1VC
Line 4 +V1+V1+V1–V1–V1–V1–V1+V1VC
Voltage level relationships: + V1> VC> –V1(VCis the center voltage level)
SED1751
5–6 EPSON MLS Driver Chip Set
Technical Manual
Timing Diagram (1)
1/240 duty, normal operation.
SHL = L, SEL = L, LSEL = L, CSEL = L (This diagram provided only as a reference.)
+V1
VC
–V1
F2
F1
FR
LP
Driver 1
COM1
+V1
VC
–V1
COM2
+V1
VC
–V1
COM3
+V1
VC
–V1
COM4
+V1
VC
–V1
COM5
+V1
VC
–V1
COM6
+V1
VC
–V1
COM7
+V1
VC
–V1
COM8
+V1
VC
–V1
Driver 2
COM120
Field 1 Field 2 Field 3
1 Frame (240 lines)
Field 4
1 2 3 60 61 62 63 120 121 122 123 180 181 182 183 240 1 2 3
1
1 2 3 4 5 30 31 32 33 60 61 62 63 90 91 92 93 120 121 122 123
2 3 4 5
240 lines
120 121 122 123 240 1 2 3 4
YD
LP
FR
LP
CIO 1
CIO 2
SED1751
MLS Driver Chip Set EPSON 5–7
Technical Manual
Timing Diagram (2)
1/240 duty, 1/2 H operation.
SHL = L, SEL = L, LSEL = H, CSEL = L (This diagram provided only as a reference.)
+V1
VC
–V1
F2
F1
FR
LP
Driver 1
COM1
+V1
VC
–V1
COM2
+V1
VC
–V1
COM3
+V1
VC
–V1
COM4
+V1
VC
–V1
COM5
+V1
VC
–V1
COM6
+V1
VC
–V1
COM7
+V1
VC
–V1
COM8
+V1
VC
–V1
Driver 2
COM120
Field 1 Field 2 Field 3
1 Frame (240 lines)
Field 4
2/240 2/1 2/60 2/61 2/120 2/121 2/180 2/181 2/240 2/1
1/1 1/1 1/61 1/62 1/121 1/122 1/181 1/182 1/1 1/1
1/1
1/1
2/1
1/2
2/2
1/3 1/30
2/30
1/31
2/31
1/60
2/60
1/61
2/61
1/90
2/90
1/91
2/91
1/120
2/120
1/121
2/121
2/1 1/2 2/2 1/3
240 lines
1/120 2/120 1/121 2/121 2/240 1/1 2/1 1/2 2/2
YD
LP
FR
LP
CIO
CIO
1
2
SED1751
5–8 EPSON MLS Driver Chip Set
Technical Manual
ABSOLUTE MAXIMUM RATINGS
Item Signal Rated Value Units
Power voltage (1) VCC –0.3 to +7.0 V
Power voltage (2) VDDH –0.3 to + 45.0 V
Power voltage (3) ±V1, VCGND – 0.3 to VDDH + 0.3 V
Input voltage VIGND – 0.3 to VCC + 0.3 V
Output voltage VOGND – 0.3 to VCC + 0.3 V
CIO output current IO1 20 mA
Operating temperature Topr –30 to +85 °C
Storage temperature 1 Tstg1 –65 to +150 °C
Storage temperature 2 Tstg2 –55 to +100 °C
NOTE 1: The voltages are all relative to GND = 0 V.
NOTE 2: Storage temperature 1 is for the chip alone, and storage temperature 2 is for the TCP
product.
NOTE 3: Ensure that the relationship between +V1, VC, and –V1is always as follows:
VDDH ≥+V1≥VC≥–V1≥GND.
NOTE 4: The LSI may be permanently damaged if the logic system power is floating or VCC is less
than or equal to 2.6 V when power is applied to the LC drive system. Special caution must
be paid to the power sequences during power up and power down.
V
CC
GND (–V1)
V
DDH
/2 (VC)
V
DDH
(+V1)
Logic System LCD System
Indice
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