19-1931; Rev 1; 3/03
±15kV ESD-Protected, 460kbps,
RS-232 Transmitters in SOT23-6
Features
o Small 6-Pin SOT23 Package
o ESD-Protected RS-232 Output (MAX3190E)
±15kV per Human Body Model
±8kV per IEC 1000-4-2 Contact Discharge
±15kV per IEC 1000-4-2 Air-Gap Discharge
o 200µA Operating Supply Current
o Shutdown Reduces Supply Current to 0.4µA
o RS-232-Compliant Operation from ±7.5V to ±12V
Supplies
o RS-232-Compatible Operations from ±6V to ±7.5V
Supplies
o 460kbps Guaranteed Data Rate
o Three-State RS-232 Transmitter Output
o No External Components
Ordering Information
Applications
Set-Top Boxes
PART
TEMP RANGE
PINPACKAGE
TOP
MARK
MAX3190EUT-T
-40°C to +85°C
6 SOT23-6
AAIA
MAX3190EEUT-T
-40°C to +85°C
6 SOT23-6
ABQS
Telecommunications
Diagnostic Ports
Networking Equipment
Digital Cameras
Hand-Held Equipment
Typical Operating Circuit
+5V
+10V
1
6
Pin Configuration
TOP VIEW
SHDN
VCC
CBYPASS1
0.1µF
VEE
5
MAX3190
MAX3190E
3 TIN
-10V
SHDN 1
CBYPASS2
0.1µF
GND 2
6
5
VEE
4
MAX3190
MAX3190E
VCC
TOUT
TOUT 4
TIN 3
GND
2
SOT23-6
CAPACITORS MAY BE
POLARIZED OR UNPOLARIZED.
________________________________________________________________ Maxim Integrated Products
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.
1
MAX3190/MAX3190E
General Description
The MAX3190/MAX3190E single RS-232 transmitters in
a SOT23-6 package are for space- and cost-constrained applications requiring minimal RS-232 communications. These devices consume only 200µA of
supply current from ±7.5V to ±12V supplies. The
MAX3190/MAX3190E transmitter outputs are RS-232
compatible when powered from ±6V to ±7.5V supplies.
They feature a shutdown input that reduces current
consumption to only 1µA and forces the transmitter output into a high-impedance state. RS-232-compliant data
transmission is guaranteed up to 460kbps.
The MAX3190/MAX3190E are EIA/TIA-232 transmitters
that convert CMOS/TTL logic levels to RS-232-compliant
signals. The MAX3190E transmitter output is protected
to ±15kV per the Human Body Model, ±8kV per IEC
1000-4-2 Contact Discharge, and ±15kV per IEC 10004-2 Air-Gap Discharge, providing protection against
harsh environments. The MAX3190/ MAX3190E transmitters have a standard inverting output.
±15kV ESD-Protected, 460kbps,
RS-232 Transmitters in SOT23-6
(VCC = +7.5V to +12V, VEE = -7.5V to -12V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +10V,
VEE = -10V, and TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ESD PROTECTION (MAX3190E)
Human Body Model
TOUT
±15
IEC 1000-4-2 Contact Discharge
±8
IEC 1000-4-2 Air-Gap Discharge
±15
kV
Note 2: All devices are 100% tested at TA = +25°C. All limits over temperature are guaranteed by design.
Typical Operating Characteristics
(VCC = +10V, VEE = -10V, RL = 3kΩ, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. OUTPUT CAPACITANCE
SLEW RATE vs. OUTPUT CAPACITANCE
4
125kbps
3
2
35
30
SLEW RATE (V/µs)
20kbps
25
RISING EDGE
20
15
10
1
FALLING EDGE
5
0
0
0
500
1000
1500
2000
0
2500
400
TRANSMITTER OUTPUT
SHUTDOWN WAVEFORM
5V
0
-10V
1.0µs/div
TOUT VOLTAGE (V)
0
+10V
TOUT
1200
1600
2000
TRANSMITTER OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
MAX3190/90E toc03
SHDN
800
CAPACITANCE (pF)
OUTPUT CAPACITANCE (pF)
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
MAX3190/90E toc04
SUPPLY CURRENT (mA)
250kbps
MAX3190/90E toc02
460kbps
5
40
MAX3190/90E toc01
6
VEE = -VCC, 460kbps
POSITIVE
NEGATIVE
6
7
8
9
10
11
12
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
3
MAX3190/MAX3190E
ELECTRICAL CHARACTERISTICS (continued)
