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PDF MAX14895E Data sheet ( Hoja de datos )
| Número de pieza | MAX14895E | |
| Descripción | Enhanced VGA Port Protector | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-5819; Rev 0; 3/11
EVALUATION KIT AVAILABLE
MAX14895E
Enhanced VGA Port Protector
General Description
The MAX14895E integrates level-translating buffers and
features RED, GRN, and BLU (RGB) port protection for
VGA signals.
The device has horizontal sync (SYNCH_) and vertical
sync (SYNCV_) translating buffers that convert low-level
CMOS inputs from a graphics controller to meet full 5V,
TTL-compatible outputs. Each output can drive Q10mA
and meets the VESASM specification. In addition, the
device translates the direct digital control (DDC) signals
to a lower level that is safe for the graphics controller.
The device features both EN and EN inputs, accepting
active-high or active-low enable inputs. The device also
switches and current limits the 5V supply to a VGA con-
nector or monitor.
The RED, GRN, and BLU terminals protect graphics con-
troller outputs against electrostatic discharge (ESD) events.
All eight outputs and EN have high-level ESD protection.
The MAX14895E is specified over the extended -40NC to
+85NC temperature range and is available in a 16-pin,
3mm x 3mm TQFN package with exposed pad.
Notebook Computers
Desktops
Applications
Servers
Graphics Cards
Benefits and Features
S Saves Power in Portable Applications
Low Quiescent Supply Current: 430µA (typ)
S Eliminates Need for Costly External Components
High-ESD Protection on SDA1, SCL1, SYNCH1,
SYNCV1, RED, GRN, BLU, EN, VS
±15kV Human Body Model (HBM)
±8kV IEC 61000-4-2 Contact Discharge
S Innovative Design Enables a High Level of
Integration for Performance
Output Current-Limit Switch with Power-Off
Protection
Low Capacitance on RGB Ports (2.2pF typ)
±10mA Drive on SYNCH1, SYNCV1
S Fully Integrated Solutions Saves Space in Portable
Applications
DDC Outputs have Internal Pullups
3mm x 3mm, 16-Pin TQFN Package
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to www.maxim-ic.com/MAX14895E.related.
Typical Operating Circuit
VGA
OUTPUTS
2
2
+5V
1µF
EN VCC VS
EN
SYNCH0, SYNCV0 SYNCH1, SYNCV1
SDA0, SCL0
SDA1, SCL1
RED
GRN MAX14895E
BLU
GND
1µF
2
2
VGA
PORT
VESA is a service mark of the Video Electronics Standards Association Corporation.
����������������������������������������������������������������� Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
http://www.Datasheet4U.com
1 page  
MAX14895E
Enhanced VGA Port Protector
(VCC = +5V, TA = +25NC, unless otherwise noted.)
ON-RESISTANCE vs. SDA0 VOLTAGE
80
SDA0, SCL0 ARE
70 INTERCHANGEABLE
60
50
40
30 TA = +25°C
20 TA = +85°C
10
0
0
TA = -40°C
0.5 1.0 1.5 2.0 2.5 3.0
VSDA0 (V)
Typical Operating Characteristics
HV BUFFER OUTPUT-VOLTAGE HIGH
vs. TEMPERATURE
6.0
5.8 IOUT = 8mA
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
-40
-15 10 35 60
TEMPERATURE (°C)
85
HV BUFFER OUTPUT-VOLTAGE LOW
vs. TEMPERATURE
1.0
0.9 IOUT = 8mA
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-40
-15 10 35 60
TEMPERATURE (°C)
85
����������������������������������������������������������������� Maxim Integrated Products 5
http://www.Datasheet4U.com
5 Page 
REVISION
NUMBER
0
REVISION
DATE
3/11
Initial release
MAX14895E
Enhanced VGA Port Protector
DESCRIPTION
Revision History
PAGES
CHANGED
—
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.
Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
11
© 2011 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
http://www.Datasheet4U.com
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet MAX14895E.PDF ] | |
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