MAX3190EEUT Fast Delivery |IC PHOENIX CO.,LIMITED

MAX3190EEUT ,±15kV ESD-Protected, 460kbps, RS-232 Transmitters in SOT23-6Applications Ordering InformationSet-Top BoxesPIN- TOPPART TEMP RANGEPACKAGE MARKTelecommunications ..
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MAX3190EEUT
±15kV ESD-Protected, 460kbps, RS-232 Transmitters in SOT23-6
General Description
The MAX3190/MAX3190E single RS-232 transmitters in
a SOT23-6 package are for space- and cost-con-
strained applications requiring minimal RS-232 commu-
nications. 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 out-
put into a high-impedance state. RS-232-compliant data
transmission is guaranteedup 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 1000-
4-2 Air-Gap Discharge, providing protection against
harsh environments. The MAX3190/ MAX3190Etrans-
mitters have a standardinverting output.
Applications
Set-Top Boxes
Telecommunications
Diagnostic Ports
Networking Equipment
Digital Cameras
Hand-Held Equipment
FeaturesSmall 6-Pin SOT23 PackageESD-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 Discharge200µA Operating Supply CurrentShutdown Reduces Supply Current to 0.4µARS-232-Compliant Operation from ±7.5V to ±12V
SuppliesRS-232-Compatible Operations from ±6V to ±7.5V
Supplies460kbps Guaranteed Data RateThree-State RS-232 Transmitter OutputNo External Components
MAX3190/MAX3190E
±15kV ESD-Protected, 460kbps,
RS-232 Transmitters in SOT23-6
GND
TOUTTINVCCVEE
SHDN
MAX3190
MAX3190E
SOT23-6
TOP VIEW
SHDN
VCCVEE
TIN
GND
TOUT
MAX3190
MAX3190E
CBYPASS1
0.1μF
CBYPASS2
0.1μF
-10V+10V
CAPACITORS MAY BE
POLARIZED OR UNPOLARIZED.
+5Vypical Operating Circuit
19-1931; Rev 1; 3/03
Pin Configuration
Ordering Information
ABQS
AAIA
TOP
MARK
6 SOT23-6
6 SOT23-6
PIN-
PACKAGETEMP RANGE
-40°C to +85°C
-40°C to +85°CMAX3190EEUT-T
MAX3190EUT-T
PART
MAX3190/MAX3190E
±15kV ESD-Protected, 460kbps,
RS-232 Transmitters in SOT23-6
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +7.5V to +12V, VEE= -7.5V to -12V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC = +10V,
VEE = -10V, and TA= +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:VCCand VEEcan have maximum magnitudes of 13.2V, but their absolute difference cannot exceed 22V.
VCCto GND (Note 1)...........................................-0.3V to +13.2V
VEEto GND (Note 1)............................................+0.3V to -13.2V
VCCto VEE(Note 1).............................................................+22V
TIN, SHDNto GND...................................................-0.3V to +7V
TOUT to GND (SHDN= GND)..........................................±13.2V
Output Short-Circuit to GND Duration........................Continuous
Continuous Power Dissipation (TA= +70°C)
6-Pin SOT23 (derate 8.7mW/°C above +70°C)..........691mW
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
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
DC CHARACTERISTICS
Positive Supply VoltageVCC7.512V
Negative Supply VoltageVEE-12-7.5V
Positive Supply CurrentICCV SHDN = +5V250µA
Negative Supply CurrentIEEV SHDN = +5V-125µA
Shutdown Supply CurrentV SHDN = 0±0.4±10µA
INPUT LOGIC (TIN, SHDN)
Input Logic Threshold LowVIL0.8V
Input Logic Threshold HighVIH2.4V
Input Leakage±0.01±1µA
TIN Input Hysteresis100mV
TRANSMITTER OUTPUT
VCC = 7.5V, VEE = -7.5V, RL = 3kΩ±5VOutput Voltage SwingVTOUTVCC = 6V, VEE = -6V, RL = 3kΩ±3.7V
Output ResistanceRTOUTVCC = VEE = 0, VTOUT = ±2V300Ω
Outp ut S hor t- C i r cui t C ur r ent±35+60mA
Output Leakage CurrentITOUTVTOUT = ±12V; VCC = 0 or VCC = +10V,
VEE = -10V; SHDN = GND±100µA
TIMING CHARACTERISTICS
Maximum Data RateRL = 3kΩ,
CL = 1000pF460kbps
Transmitter SkewtTS|tPHL - tPLH|, Figure 1100ns
Transition-Region Slew Rate
RL = 3kΩ to 7kΩ,
CL = 300pF to 1000pF, measured from -3V
to +3V or +3V to -3V,
VCC = +10V, VEE = -10V, TA = +25°C30V/µs
Transmitter Enable TimetEN2µs
MAX3190/MAX3190E
±15kV ESD-Protected, 460kbps,
RS-232 Transmitters in SOT23-65001000150020002500
SUPPLY CURRENT
vs. OUTPUT CAPACITANCE
MAX3190/90E toc01
OUTPUT CAPACITANCE (pF)
SUPPLY CURRENT (mA)20kbps
125kbps
250kbps
460kbps800400120016002000
SLEW RATE vs. OUTPUT CAPACITANCE
MAX3190/90E toc02
CAPACITANCE (pF)
SLEW RATE (V/
FALLING EDGE
RISING EDGE
SHDN
TOUT0
-10V
+10V
1.0μs/div
TRANSMITTER OUTPUT
SHUTDOWN WAVEFORM
MAX3190/90E toc03
Typical Operating Characteristics
(VCC= +10V, VEE= -10V, RL= 3kΩ, TA= +25°C, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +7.5V to +12V, VEE= -7.5V to -12V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC = +10V,
VEE = -10V, and TA= +25°C.) (Note 2)
Note 2:All devices are 100% tested at TA= +25°C. All limits over temperature are guaranteed by design.
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
ESD PROTECTION (MAX3190E)
Human Body Model±15
IEC 1000-4-2 Contact Discharge±8TOUT
IEC 1000-4-2 Air-Gap Discharge±15
TRANSMITTER OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
MAX3190/90E toc04
SUPPLY VOLTAGE (V)
TOUT VOLTAGE (V)97101112
NEGATIVE
POSITIVE
VEE = -VCC, 460kbps
Detailed Description
The MAX3190/MAX3190E are EIA/TIA-232 transmitters
that convert CMOS/TTL logic levels to RS-232 signals.
They operate on ±7.5V to ±12V supplies and feature
enhanced electrostatic discharge protection (see ESD
Protection). The MAX3190/MAX3190Eguarantee a
460kbps data rate with worst-case loads of 3kΩin par-
allel with 1000pF. The MAX3190/MAX3190Einvert the
TOUT signal relativeto TIN (standard RS-232). The
transmitter input does not have a pullup resistor and
should be connected to GND if unused.
Shutdown
The MAX3190/MAX3190Efeature a shutdown input.
Drive SHDNlow to reduce the supply current to 1µA
(max). Shutdown also forces TOUT into a high-imped-
ance state, allowing the signal line to be safely con-
trolled by other transmitters. Drive SHDNhigh for
normal operation.
ESD Protection
As with all Maxim devices, ESD protection structures are
incorporated on all pins to protect against ESD encoun-
tered during handling and assembly. The MAX3190E’s
transmitter output has extra protection against static
electricity. Maxim has developed state-of-the-art struc-
tures enabling this pin to withstand ESD up to ±15kV
without damage or latch-up. The MAX3190E’s transmit-
ter output is characterized for protection to the following
limits:±15kV using the Human Body Model±8kV using the Contact Discharge method specified
in IEC 1000-4-2±15kV using the Air-Gap Discharge method specified
in IEC 1000-4-2
Human Body Model
Figure 2 shows the Human Body Model, and Figure 3
shows the current waveform it generates when dis-
charged into a low impedance. This model consists of
a 100pF capacitor charged to the ESD voltage of interest,
and then discharged into the test device through a
1.5kΩresistor.
IEC 1000-4-2
The IEC 1000-4-2 standard covers ESD testing and
performance of finished equipment; it does not specifi-
cally refer to ICs. The MAX3190E enables the design of
equipment that meets the highest level (Level 4) of IEC
1000-4-2 without the need for additionalESD-protection
components. The major difference between tests done
using the Human Body Model and IEC 1000-4-2 is
higher peak current in IEC 1000-4-2. Because series
resistance is lower in the IEC 1000-4-2 model, the ESD
withstand voltage measured to this standard is general-
ly lower than that measured using the Human Body.
Figure 4 shows the IEC 1000-4-2 model, and Figure 5
MAX3190/MAX3190E
±15kV ESD-Protected, 460kbps,
RS-232 Transmitters in SOT23-6
Pin Description
50%50%
50%50%
tPLH
tPHL
+10V
-10V
TOUT
TIN
VIH
VIL
Figure 1. Transmitter Propagation-Delay Timing
NAMEFUNCTIONSHDN
Active-Low Shutdown. Pull low to
reduce the supply current and to force
TOUT into a high-impedance state.GNDGround
PINTINTTL/CMOS Transmitter InputTOUTRS-232 Transmitter OutputVCCPositive Supply VoltageVEENegative Supply Voltage
CHARGE-CURRENT
LIMIT RESISTOR
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
100pF
1MΩ
RD
1500Ω
HIGH-
VOLTAGE
SOURCE
DEVICE
UNDER
TEST
Figure 2. Human Body ESD Test Model
shows the current waveform for the ±8kV IEC 1000-4-2
Level 4 ESD Contact Discharge test. The Air-Gap test
involves approaching the device with a charged probe.
The Contact Discharge method connects the probe to
the device before the probe is energized.
Power-Supply Decoupling
In most circumstances, 0.1µF bypass capacitors are
adequate for power-supply decoupling. Connect the
bypass capacitors as close to the IC as possible.
Applications Information
Power-Supply Sources
The MAX3190/MAX3190E require ±7.5V to ±12V dual
supplies. For applications where these supply voltages
are not present, a DC-DC converter must be added.
Due to the MAX3190/MAX3190E’s low current con-
sumption, a charge pump can provide the proper supply
voltages and requires a minimal amount of board
space and cost.
When using another RS-232 device containing an internal
unregulated charge pump (Tables 1 and 2), the
MAX3190/MAX3190E may be powered from the internal
charge pump (Figure 6). This eliminates the need for
additional external DC-DC converters to generate the
required ±7.5V to ±12V dual supplies. The MAX3190/
MAX3190E are specifically designed to be used with
Maxim’s RS-232 products listed in Tables 1 and 2.
Competitive RS-232 devices’ charge pumps typically
do not have the capability to power these devices.
The MAX3190/MAX3190E can be operated from ±6V to
±7.5V supplies. In this condition, the devices are guar-
anteed to be RS-232-compatible (TOUT ≥+3.7V).
For applications that have ±4.5V to ±6V supplies avail-
able, please refer to the MAX3188/MAX3189 or
MAX3188E/MAX3189E data sheet.
MAX3190/MAX3190E
±15kV ESD-Protected, 460kbps,
RS-232 Transmitters in SOT23-6
IP 100%
90%
36.8%
tRITIME
tDL
CURRENT WAVEFORM
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
10%
AMPERES
Figure 3. Human Body Model Current Waveform
CHARGE-CURRENT
LIMIT RESISTOR
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
150pF
50MΩ TO 100MΩ
RD
330Ω
HIGH-
VOLTAGE
SOURCE
DEVICE
UNDER
TEST
Figure 4. IEC 1000-4-2 ESD Test Model
tR = 0.7ns TO 1ns30ns
60ns
100%
90%
10%
IPEAK
Figure 5. IEC 1000-4-2 Generator Current Waveform
MAX3190/MAX3190E
±15kV ESD-Protected, 460kbps,
RS-232 Transmitters in SOT23-6
VCC
TIN
GNDGND
VCC
TOUT
MAX3190
MAX3190E
MAX_ _ _ _*
CBYPASS
0.1μF
0.1μF
0.1μF
SHDN
VEE
+5V SUPPLY
C1+
C1-
C2+
C2-
+5VFOR MAXIM PART NUMBER,
SEE TABLES 1 AND 2.
Figure 6. Powering the MAX3190/MAX3190E

Partno	Mfg	Dc	Qty	Available	Descript
MAX3190EEUT	MAX	N/a	2010	avai	±15kV ESD-Protected, 460kbps, RS-232 Transmitters in SOT23-6