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MAX4895EETE+

P1-P3P4-P6P7-P8
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 V
L
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
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, I
Q
≤ 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 V
L
♦ 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
MAX4895E
VGA Port Protector
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
MAX4895E
1μF
GND
+5V
V
CC
1μF
+3.3V
V
L
EN
B
G
R
SDA0, SCL0
H0, V0
2
2
2
2
VGA OUTPUTS VGA PORT
SDA1, SCL1
H1, V1
N.C.
Typical Operating Circuit
19-4569; Rev 1; 6/10
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.
PART TEMP RANGE PIN-PACKAGE
MAX4895EETE+ -40°C to +85°C 16 TQFN-EP*
+
Denotes a lead(Pb)-free/RoHS-compliant package.
*
EP = Exposed pad.
VESA is a registered service mark of Video Electronics
Standards Association Corporation.
MAX4895E
VGA Port Protector
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +4.5V to +5.5V, V
L
= +2.0V to V
CC
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5.0V,
V
L
= +3.3V, and T
A
= +25°C.) (Note 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial
.
(All voltages referenced to GND.)
V
CC
........................................................................-0.3V to +6.0V
V
L
.............................................................-0.3V to +(V
CC
+ 0.3V)
R, G, B, H1, V1, SCL1, SDA1...................-0.3V to +(V
CC
+ 0.3V)
EN, H0, V0, SCL0, SDA0 ............................-0.3V to +(V
L
+ 0.3V)
Continuous Current through SDA_, SCL_.........................±30mA
Continuous Short-Circuit Current H1, V1..........................±20mA
Continuous Power Dissipation (T
A
= +70°C) for multilayer board:
16-Pin TQFN (derate 20.8mW/°C above +70°C) .......1667mW
Junction-to-Case Thermal Resistance (θ
JC
) (Note 1) ......7°C/W
Junction-to-Ambient Thermal Resistance (θ
JA
)
(Note 1) ........................................................................48°C/W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SUPPLY OPERATION
Supply Voltage V
CC
4.5 5.5 V
Logic Supply Voltage V
L
V
L
V
CC
2 3.3 5.5 V
V
CC
Supply Current I
CC
V
H0
, V
V0
= 0V, V
EN
= V
L
0.5 5.0 μA
V
L
Supply Current I
L
V
H0
, V
V0
= 0V, V
EN
= V
L
(no load) 0.5 5.0 μA
RGB CHANNELS
R, G, B Capacitance C
OUT
f = 1MHz, V
R,G,B
= 1V
P-P
(Note 3) 2.2 pF
R, G, B Leakage V
CC
= +5.5V -1 +1 μA
H_, V_, EN CHANNELS
Input Threshold Low V
IL
V
L
= +3.0V 0.8 V
Input Threshold High V
IH
V
L
= +3.6V 2.0 V
Input Hysteresis V
HYST
100 mV
Input Leakage Current I
LEAK
V
L
= +3.3V, V
CC
= +5.5V -1 +1 μA
Output-Voltage Low V
OL
I
OUT
= 10mA sink, V
CC
= +4.5V 0.8 V
Output-Voltage High V
OH
I
OUT
= 10mA source, V
CC
= +4.5V 2.4 V
Propagation Delay t
PD
R
L
= 2.2k, C
L
= 10pF, V
OL
= +0.8V,
V
OH
= +2.4V
15 ns
Enable Time t
ON
, t
OFF
15 ns
SDA_, SCL_ (DDC) CHANNELS
On-Resistance, SDA, SCL R
ON
V
CC
= +5.5V, I
SDA, SCL
= ±10mA,
V
SDA, SCL
= +0.5V
20 55
Leakage Current, SDA, SCL I
LEAK
V
L
= 0V -1 +1 μA
MAX4895E
VGA Port Protector
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +4.5V to +5.5V, V
L
= +2.0V to V
CC
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5.0V,
V
L
= +3.3V, and T
A
= +25°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
ESD PROTECTION
SDA1, SCL1, H1, V1, R, G, B Human Body Model (Note 4) ±15 kV
SDA1, SCL1, H1, V1, R, G, B IEC 61000-4-2 Contact ±8 kV
Note 2: All devices are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Note 3: Guaranteed by design, not production tested.
Note 4: Tested terminals to GND; 1µF bypass capacitors on V
CC
and V
L
.
R
ON
vs. V
SDA0
MAX4895E toc01
V
SDA0
(V)
R
ON
(Ω)
2.01.51.0 3.02.5 4.00.5 3.5
15
30
45
60
0
0 4.5
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
V
L
= +5V
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
V
L
= +3.3V
SDA0, SCL0 ARE
INTERCHANGEABLE
HV BUFFER OUTPUT-VOLTAGE
HIGH vs. TEMPERATURE
MAX4895E toc02
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
10-15 35 60
4.5
5.0
5.5
6.0
4.0
-40 85
I
OUT
= 8mA
HV BUFFER OUTPUT-VOLTAGE
LOW vs. TEMPERATURE
MAX4895E toc03
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
10-15 35 60
0.4
0.2
0.6
0.8
1.0
0
-40 85
I
OUT
= 8mA
Typical Operating Characteristics
(V
CC
= +5.0V, V
L
= +3.3V, and T
A
= +25°C, unless otherwise noted.)
P1-P3P4-P6P7-P8

MAX4895EETE+

Mfr. #:
Buy MAX4895EETE+
Manufacturer:
Maxim Integrated
Description:
Multimedia ICs Video ICs VGA Port Protecto
Lifecycle:
New from this manufacturer.
Delivery:
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