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PDF AN1702FHK Data sheet ( Hoja de datos )
| Número de pieza | AN1702FHK | |
| Descripción | Gray-scale voltage generating IC | |
| Fabricantes | Panasonic Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AN1702FHK (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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Gradation Voltage Generating IC for Color TFT-LCD
AN1702FHK
Gray-scale voltage generating IC for liquid crystal display
I Overview
The AN1702FHK has been designed for LCD
applications,and features built-in functions such as a
gray-scale voltage generatior that supports 256 grada-
tions, a reference voltage of 1.23 V, 16 output buffer amp
circuits and a COM amplifier circuit.
I Features
• Built-in 1.23 V (typical) high-precision reference voltage
power source
• Wide buffer amp. dynamic range output: VCC − 0.2 V
(top stage) to GND + 0.15 V (bottom stage)
• Large ±100 mA (max.) COM amp. driving current
I Applications
• Gray-scale power sources for LCDs
I Block Diagram
36
37
9.00±0.20
7.00±0.10
25
Unit: mm
24
48
1
(0.75)
13
0.50
12
0.20±0.05
0.10 M
(1.00)
0.10
Seating plane
0° to 8°
0.50±0.10
TQFP048-P-0707B (Lead-free package)
VB3 VB4 VB5 VB6 VB7 N.C. GND2 VA7 VA6 VA5 VA4 VA3
36 35 34 33 32 31 30 29 28 27
VB2
37
VB1
38
L4
VB0
39
www.DataSheet4U.com
GND1
40
N.C.
41
COM1
42
L5
L6
L7
R2
R1
R0
COM0
COMS
43
COM
44
VL0
45
L0
N.C.
46
L2
L1
L3
R7
R6
R5
R4
VL1
47
VL2
48
1 2 3 4 5 6 7 8 9 10
26 25
24
23
22
21
REF
20
VREF
19
18
17
16
15
R3
14
13
11 12
VA2
VA1
VA0
N.C.
VREF
VR
N.C.
VCC1
N.C.
VR0
VR1
VR2
VL3 VL4 VL5 VL6 VL7 N.C. VCC2 VR7 VR6 VR5 VR4 VR3
Publication date: December 2001
SDF00004BEB
1
1 page  
I Application Circuit Example
• System configuration example
COM amplifier
16
AN1702FHK
VR0
VR1
VR2
VL2
VL1
VL0
AN1702FHK
source driver
Liquid crystal panel
H, V, CLK
Data
Display controllor
Control signal
• Application circuit example
VREF output voltage = 1.23 V ×
R1 + R2
R1
(but this never exceeds VCC)
www.DataSheet4U.com
To the reference voltage pin of LSI
Output current
±100 mA (max.)
Total current should be
lower than 5 mA.
Current
Current
SDF00004BEB
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet AN1702FHK.PDF ] | |
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