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PDF MAX4895E Data sheet ( Hoja de datos )
| Número de pieza | MAX4895E | |
| Descripción | VGA Port Protector | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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19-4569; Rev 0; 4/09
www.DataSheet4U.com
VGA Port Protector
General Description
The MAX4895E integrates level-translating buffers and
features R, G, B port protection for VGA signals.
The MAX4895E has H, V (horizontal, vertical) translat-
ing buffers that take low-level CMOS inputs from the
graphics outputs to meet full +5.0V, TTL-compatible
outputs. Each output can drive ±10mA and meet the
VESA® specification. In addition, the device takes the
+5.0V, direct digital control (DDC) signals and trans-
lates them to the lower level required by the graphics
device. This level is set by the user by connecting VL to
the graphics output supply. The R, G, B terminals pro-
tect the graphics output pins against electrostatic dis-
charge (ESD) events. All seven outputs have high-level
ESD protection.
The MAX4895E is specified over the extended -40°C to
+85°C temperature range, and is available in a 16-pin,
3mm x 3mm TQFN package.
Applications
Notebook Computers
Desktops
Servers
Graphics Cards
VESA is a registered trademark of Video Electronics Standards
Association Corporation.
Typical Operating Circuit
Features
♦ ESD Protection on H1, V1, SDA1, SCL1, R, G, and B
±15kV—Human Body Model
±8kV—IEC 61000-4-2, Contact Discharge
♦ Low Quiescent Current, IQ ≤ 5µA (max)
♦ Low 3pF (max) Capacitance (R, G, B Ports)
♦ DDC Level-Shifting Protection and Isolation
♦ Horizontal Sync, Vertical Sync Level Shifting/
Buffering
♦ Input Compatible with VL
♦ Output Full +5.0V TTL Compatible (per VESA)
♦ ±10mA Drive on Each H, V Terminal
♦ Space-Saving, Lead-Free, 16-Pin (3mm x 3mm)
TQFN Package
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX4895EETE+ -40°C to +85°C 16 TQFN-EP* AHEEAA
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Pin Configuration
VGA OUTPUTS
+3.3V
+5V
1μF 1μF
VL
EN
VCC
2
H0, V0 MAX4895E H1, V1
2
2
SDA0, SCL0
SDA1, SCL1
2
R
G N.C.
B
GND
VGA PORT
TOP VIEW
12 11 10 9
V0 13
8 SDA1
V1 14
VCC 15
MAX4895E
EN 16 +
*EP
1234
7 SDA0
6 N.C.
5 VL
TQFN
(3mm × 3mm)
*CONNECT EXPOSED PAD TO GND.
________________________________________________________________ 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.
1 page  
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SDA0
SCL0
H0
EN
V0
VGA Port Protector
Functional Diagram
VL VCC
CLAMP
SDA1
SCL1
H1
V1
MAX4895E
GND
R
G
B
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MAX4895E.PDF ] | |
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