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BUF11705 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BUF11705
기능 Gamma Correction Buffer
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BUF11705 데이터시트, 핀배열, 회로
BUF11705
22-V Supply, 10+1 Channel
Gamma Correction Buffer
SBOS349 − DECEMBER 2005
www.DataSheet4U.com
FEATURES
D Wide Supply Range: 7 V to 22 V
D Gamma Correction Channels: 10
D Integrated VCOM Buffer
D Excellent Output Current Drive:
− Gamma Channels:
> 30 mA at 0.5 V Swing to Rails(1)
− VCOM:
> 100 mA typ at 2 V Swing to Rails(1)
D Large Capacitive Load Drive Capability
D Rail-to-Rail Output
D PowerPADPackage
D Low-Power/Channel: < 500 µA
D High ESD Rating: 8 kV HBM, 2 kV CDM,
300 V MM
D Specified for −25°C to +85°C
(1) See Typical Characteristic curves for details.
V DD
BUF117 05
So urce Driver
Gamma 1
DESCRIPTION
The BUF11705 is a multi-channel buffer targeted
towards gamma correction in high-resolution LCD
panels. It is pin-compatible with the existing BUF11702
and BUF11704 and operates at higher supply voltages
up to 22 V (24 V absolute max). The higher supply
voltage enables faster response times and brighter
images in large-screen LCD panels. This is especially
important in LCD TV applications.
The BUF11705 offers 10 gamma channels. For
additional space and cost savings, a VCOM channel with
> 100 mA drive capability is integrated into the
BUF11705.
The BUF11705 is available in the TSSOP-28,
PowerPAD package for dramatically increased power
dissipation capability. This allows, a large number of
channels to be handled safely in one package.
A flow-through pinout has been adopted to allow
simple PCB routing and maintain cost-effectiveness. All
inputs and outputs of the BUF11705 incorporate
internal ESD protection circuits that prevent functional
failures at voltages up to 8 kV (HBM), 2 kV (CDM), and
300 V (MM).
Gamma 2
Gamma 3
Gamma (n 2)
Gamma (n 1)
Gamma (n)
VCOM
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright 2005, Texas Instruments Incorporated
www.ti.com




BUF11705 pdf, 반도체, 판매, 대치품
BUF11705
SBOS349 − DECEMBER 2005
EQUIVALENT SCHEMATICS OF INPUTS AND OUTPUTS
INPUT STAGE OF BUFFERS
BUF11705: 1 to 5 and VCOM
INPUT STAGE OF BUFFERS
BUF11705: 6 to 10
VS VS
Buffer
Input
Next Stage
Next Stage
Buffer
Output
GND
Internal to BUF11705
PIN CONFIGURATION
Buffer
Input
GND
Buffer
Output
Next Stage
Next Stage
Internal to BUF11705
www.ti.com
OUTPUT STAGE OF ALL BUFFERS
VS
Previous
Stage
Inverting
Input
Previous
Stage
GND
Buffer
Output
BUF11705
VDD 1
NC 2
OUT1 3
OUT2 4
28 VDD
27 NC
26 IN1
25 IN2
OUT3 5
OUT4 6
OUT5 7
OUT6 8
OUT7 9
TSSOP−28
PowerPAD
24 IN3
23 IN4
22 IN5
21 IN6
20 IN7
OUT8 10
19 IN8
OUT9 11
18 IN9
OUT10 12
OUTCOM 13
GND 14
17 IN10
16 INCOM
15 GND
NC = No Internal Connection
4

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BUF11705 전자부품, 판매, 대치품
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Over operating free-air temperature range, unless otherwise noted.
AC CURVES
POWER−SUPPLY REJECTION RATIO vs FREQUENCY
80 VDD = 10 V
RL = 2 k
70 CL = 100 pF
60
50
Gamma Channels
40
VCOM Buffer
30
20
10
0
10 100 1 k 10 k 100 k 1 M 10 M
f Frequency Hz
Figure 13
BUF11705
SBOS349 − DECEMBER 2005
CROSSTALK vs FREQUENCY
0
VSUPPLY = 10 V
20 VIN = 1 VPP
40
60
80
100
120
140
10
100 1 k 10 k 100 k
f Frequency Hz
Figure 14
1M
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