MAXIM MAX3209E Technical data

General Description
The MAX3209E is a complete, dual DTE RS-232 serial port (6 transmitters, 10 receivers) for motherboards and desktop PCs that ensures compliance with the stringent ESD requirements of the European Community. The device minimizes board space and power consumption by eliminating the need for a negative power supply; it integrates two serial ports and a charge pump into a sin­gle 38-pin TSSOP package.
The MAX3209E features a 50µA low-power standby mode for compliance with system power-management requirements. During standby, while the device oper­ates from the single +3V to +5.5V logic supply, one receiver on each port remains active, allowing automatic system wake-up when peripheral communications resume.
All transmitter outputs and receiver inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge, and ±15kV using the Human Body Model, making the device ideal for use in harsh environments or mission-critical equip­ment. In addition, the MAX3209E withstands ±4kV per IEC 1000-4-4 Electrical Fast Transient/Burst Stressing. As a result of its robust charge-pump structure, the MAX3209E guarantees mouse driveability and true RS­232 operation at data rates up to 460kbps, ensuring compatibility with PC-to-PC communication software (such as LapLink™).
________________________Applications
Desktop PCs
Motherboards
Instruments
Equipment Requiring IEC 1000-4-2 Compliance
Telecommunications
Network Servers
Features
Two Complete Serial Ports in a Single 38-Pin
TSSOP Package
Requires Only +12V Supply and Logic
Supply (+3V to +5.5V)
No Negative Supply RequiredOne Receiver Active per Port in Standby
for System Wake-Up
460kbps Data Rate; LapLink CompatibleEnhanced ESD Protection
±15kV—Human Body Model ±8kV—IEC 1000-4-2, Contact Discharge
±15kV—IEC 1000-4-2, Air-Gap Discharge
±4kV Fast Transient Burst Immunity per
IEC 1000-4-4
Low 50µA Standby CurrentOperates with Either +3V or +5V LogicGuaranteed Mouse DriveabilitySmall 0.1µF CapacitorsFlow-Through Pinout
MAX3209E
±15kV ESD-Protected, 12V, Dual RS-232 Serial Port
with Low-Power Standby for Motherboards/Desktops
________________________________________________________________ Maxim Integrated Products 1
19-1471; Rev 5; 9/02
Ordering Information
Typical Operating Circuit appears at end of data sheet.
Pin Configurations continued at end of data sheet.
LapLink is a trademark of Traveling Software.
40 36373839
18
21
23
22
24
25
19 2016 17
6
5
4
3
2
1
7
8
9
10
11
12
13
14
15
26
27
28
29
30
31
32
33
34
35
N.C.
R7OUT
R1OUT
MAX3209E
6
X 6 QFN
TOP VIEW
R2OUT
R3OUT
R4OUT
R5OUT
R5IN
R4IN
R3IN
R2IN
R1IN
R6OUT
R9OUT
R8OUT
R10IN
R10OUT
R8IN
R9IN
R6IN
R7IN
T3OUT
T2OUT
T1OUT
V-
C-
GND
T4OUT
T5OUT
T6OUT
N.C.
T6IN
T5IN
T4IN
C+
V
DD
V
STBY
T1IN
T2IN
T3IN
Pin Configurations
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PART TEMP RANGE PIN-PACKAGE
38 TSSOP0°C to +70°CMAX3209ECUU
MAX3209EEUU
MAX3209EEGL
-40°C to +85°C
-40°C to +85°C
38 TSSOP
6
6 40 QFN
MAX3209E
±15kV ESD-Protected, 12V, Dual RS-232 Serial Port with Low-Power Standby for Motherboards/Desktops
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD= +10.8V to +13.2V, V
STBY
= +3V to +5.5V, C1 = C2 = 0.1µF, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C, VDD= +12V, V
STBY
= +3.3V.)
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.
VDD.........................................................................-0.3V to +15V
V
STBY
....................................................................... -0.3V to +7V
V- ........................................................................... +0.3V to -15V
Input Voltages
T_IN ......................................................................-0.3V to +7V
R_IN .................................................................................±30V
Output Voltages
T_OUT..............................................................................±15V
R_OUT.................................................-0.3V to (V
STBY
+ 0.3V)
Short-Circuit Duration
T_OUT (one at a time) ............................................Continuous
R_OUT (one at a time)............................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
TSSOP (derate 11.8mW/°C above +70°C) ..................941mW
QFN 6
6mm (derate 23.2mW/°C above +70°C)......1860mW
Operating Temperature Ranges
MAX3209EC_ _ ...................................................0°C to +70°C
MAX3209EE_ _ ................................................-40°C to +85°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
TA= +25°C
VDD= V
STBY
= 0, V
OUT
= ±2V
V
T_OUT
= 0
Transmitter input at GND
T_IN, V
STBY
= +3V to +5.25V
All transmitter outputs loaded with 3kto GND
T_IN
VDD= +12V, no load, all transmitter inputs at V
STBY
, all receiver inputs at V
STBY
or uncon-
nected
R_OUT
CONDITIONS
V2.4RS-232 Input Threshold High
V0.4RS-232 Input Threshold Low
V-25 25Receiver Input Voltage Range
300Transmitter Output Resistance
mA±10 ±60
RS-232 Output Short-Circuit Current
VOutput Voltage Swing ±5.0
V
V
STBY
- 0.3
V
OHR
Output Voltage High
10.8 13.2V
DD
µA25Input Pull-Up Current
V2.1V
IHT
Input Logic Threshold High
V0.4V
ILT
Input Logic Threshold Low
3 5.5STBY
0.5 1I
DD
mA
Supply Current
UNITSMIN TYP MAXSYMBOLPARAMETER
V
STBY
= 3.3V V0.2 1RS-232 Input Hysteresis
TA= +25°C k357RS-232 Input Resistance
TA= +25°C
Operating Voltage Range V
VDD= 0, V
STBY
= +3.3V, no load, all transmit-
ter inputs at V
STBY
, all receiver inputs at V
STBY
or unconnected
50 100I
STBY
µA
R_OUT; I
SINK
= 1.6mA V0.4V
OLR
Output Voltage Low
VDD= 0, V
STBY
= 5V µA0.05 ±5
Receiver Output Leakage Current
V
STBY
- 0.6
I
SOURCE
= 40µA
I
SOURCE
= 1mA
RS-232 RECEIVER INPUTS
RS-232 TRANSMITTER OUTPUTS
TRANSMITTER LOGIC INPUTS
DC CHARACTERISTICS
RECEIVER LOGIC OUTPUTS
MAX3209E
±15kV ESD-Protected, 12V, Dual RS-232 Serial Port
with Low-Power Standby for Motherboards/Desktops
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(VDD= +10.8V to +13.2V, V
STBY
= +3V to +5.5V, C1 = C2 = 0.1µF, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C, VDD= +12V, V
STBY
= +3.3V.)
ESD/BURST CHARACTERISTICS
Electrical Fast Transient/Burst Immunity
TRANSMITTER TIMING CHARACTERISTICS (Figure 1)
Data Rate DR
Mouse Driveability
Transmitter Output Propagation Delay, Low to High
Transmitter Output Propagation Delay, High to Low
Transmitter Output Slew Rate SR
RECEIVER TIMING CHARACTERISTICS
Receiver Output Propagation Delay, Low to High
Receiver Output Propagation Delay, High to Low
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Human Body Model ±15
IEC 1000-4-2 (Contact Discharge) ±8ESD Protection
IEC 1000-4-2 (Air-Gap Discharge) ±15
IEC 1000-4-4 ±4 kV
R
= 3k to 7k, CL = 50pF to 1000pF,
L
two transmitters switching
T1IN = T2IN = GND, T3IN = V T3OUT loaded with 3k to GND, T1OUT and T2OUT loaded with 2.5mA each
t
PLHT
t
PHLT
t
PLHR
t
PHLR
CL = 1000pF 1 µs
CL = 1000pF 1 µs
RL = 3k to 7k, V
= 50pF to 470pF, TA = +25°C,
C
L
measured from +3V to -3V or -3V to +3V
R
= 3k to 7k, V
L
C
= 50pF to 1000pF, TA = +25°C,
L
measured from +3V to -3V or -3V to +3V
CL = 150pF 0.4 1 µs
CL = 150pF 0.4 1 µs
STBY
STBY
= 3.3V,
= 3.3V,
460 kbps
,
CC
+6 -5 V
61230
41230
kV
V/µs
MAX3209E
±15kV ESD-Protected, 12V, Dual RS-232 Serial Port with Low-Power Standby for Motherboards/Desktops
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V
STBY
= +5V, VDD= +12V, C1 = C2 = 0.1µF, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
35
30
25
20
15
SUPPLY CURRENT (mA)
C1 = C2 = 0.1µF 2 TRANSMITTERS AT DATA RATE
10
4 TRANSMITTERS AT 1/16 DATA RATE ALL TRANSMITTERS AT 3k + 1000pF
5
10.8 12.011.4 12.6 13.2
RECEIVER OUTPUT LOW VOLTAGE
0.6
0.5
0.4
0.3
0.2
0.1
RECEIVER OUTPUT LOW VOLTAGE (V)
0
021 3456789
460kbps
240kbps
120kbps
SUPPLY VOLTAGE (V)
vs. SINK CURRENT
I
(mA)
SINK
MAX3209E-01
MAX3209E-03
SUPPLY CURRENT
vs. LOAD CAPACITANCE
30
25
20
15
10
SUPPLY CURRENT (mA)
5
0
460kbps
240kbps
120kbps
2 TRANSMITTERS AT DATA RATE 4 TRANSMITTERS AT 1/16 DATA RATE 3k + C
L
0 20001000 3000 4000 5000
LOAD CAPACITANCE (pF)
RECEIVER OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
RECEIVER OUTPUT HIGH VOLTAGE (V)
0.5
0
0105 15202530
I
(mA)
SOURCE
MAX3209E-02
MAX3209E-04
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