MAX3188EEUT+T-MAX3189EEUT+T Fast Delivery |IC PHOENIX CO.,LIMITED

MAX3188EEUT+T ,±15kV ESD-Protected, 1Mbps, 1µA RS-232 Transmitters in SOT23-6ELECTRICAL CHARACTERISTICS(V = +4.5V to +6V, V = -4.5V to -6V, T = T to T , unless otherwise noted. ..
MAX3189EEUT+T ,±15kV ESD-Protected, 1Mbps, 1µA RS-232 Transmitters in SOT23-6ApplicationsOrdering InformationDiagnostic PortsPIN- TOPPART TEMP. RANGEPACKAGE MARKTelecommunicati ..
MAX3189EEUT-T ,【15kV ESD-Protected, 1Mbps, 1レA RS-232 Transmitters in SOT23-6ApplicationsOrdering InformationDiagnostic PortsPIN- TOPPART TEMP. RANGEPACKAGE MARKTelecommunicati ..
MAX318CPA ,Precision, CMOS Analog SwitchesELECTRICAL CHARACTERISTICS — Dual Supplies(V+ = 15V, V- = -15V, V = 5V, GND = 0V, V = 0.8V, V = 2.4 ..
MAX318CSA ,Precision, CMOS Analog SwitchesFeaturesThe MAX317/MAX318/MAX319 are precision, CMOS,' Low On Resistance <20Ω Typical (35Ω Max)mono ..
MAX318CSA ,Precision, CMOS Analog SwitchesMAX317/MAX318/MAX31919-0185; Rev 1; 11/94Precision, CMOS Analog Switches_______________
MAX640CSA+ ,5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC ConvertersGeneral Description ________
MAX640ESA ,5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Converters
MAX640ESA+ ,5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC ConvertersFeaturesThe MAX639/MAX640/MAX653 step-down switching' High Efficiency for a Wide Range of Load Curr ..
MAX640ESA+T ,5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC ConvertersApplicationsMAX639ESA -40°C to +85°C 8 SO9V Battery to 5V, 3.3V, or 3V ConversionMAX639MJA -55°C to ..
MAX640ESA-T ,5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC ConvertersFeaturesThe MAX639/MAX640/MAX653 step-down switching' High Efficiency for a Wide Range of Load Curr ..
MAX641 ,5V Adjustable, 10W, CMOS, Step-Up, Switching Regulator Controller

MAX3188EEUT+T-MAX3189EEUT+T
±15kV ESD-Protected, 1Mbps, 1µA RS-232 Transmitters in SOT23-6
General Description
The MAX3188E/MAX3189E 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 150µA of
supply current from ±4.5V to ±6V supplies. They fea-
ture a shutdown input that reduces current consump-
tion to only 1µA and forces the transmitter output into a
high-impedance state. RS-232 data transmission is guar-
anteedup to 250kbps with the MAX3188E and up to
1Mbps with the MAX3189E.
The MAX3188E/MAX3189E are EIA/TIA-232 transmitters
that convert CMOS/TTL logic levels to RS-232-compliant
signals. The transmitter output is protected to ±15kV
using the IEC 1000-4-2 Air-Gap Discharge method, to
±8kV using the IEC 1000-4-2 Contact Discharge
method, and to ±15kV per the Human Body Model,
ensuring strict compliance with international standards.
The MAX3188E/MAX3189E transmitters have a standard
inverting output.
Applications
Diagnostic Ports
Telecommunications
Networking Equipment
Set-Top Boxes
Digital Cameras
Hand-Held Equipment
FeaturesSmall 6-Pin SOT23 PackageESD-Protected RS-232 Output
±15kV per Human Body Model
±8kV per IEC 1000-4-2, Contact Discharge
±15kV per IEC 1000-4-2, Air-Gap Discharge 150µA Operating Supply CurrentShutdown Reduces Supply Current to 1µAGuaranteed Data Rate
1Mbps (MAX3189E)
250kbps (MAX3188E)Three-State RS-232 Transmitter OutputNo External Components
MAX3188E/MAX3189E
±15kV ESD-Protected, 1Mbps, 1µA
RS-232 Transmitters in SOT23-6
GND
TOUTTINVCCVEE
SHDN
MAX3188E
MAX3189E
SOT23-6
TOP VIEW
SHDN
VCCVEE
TIN
GND
TOUT
MAX3188E
MAX3189E
CBYPASS1
0.1μF
CBYPASS2
0.1μF
-5.4V+5.4V
CAPACITORS MAY BE
POLARIZED OR UNPOLARIZED.ypical Operating Circuit
19-1604; Rev 1; 3/00
Pin Configuration
Ordering Information
AAHE
AAHD
TOP
MARK
6 SOT23-6
6 SOT23-6
PIN-
PACKAGETEMP. RANGE
-40°C to +85°C
-40°C to +85°CMAX3189EEUT-T
MAX3188EEUT-T
PART
MAX3188E/MAX3189E
±15kV ESD-Protected, 1Mbps, 1µA
RS-232 Transmitters in SOT23-6
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +4.5V to +6V, VEE= -4.5V to -6V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC = +5.4V, VEE = -5.4V,
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 7V, but their absolute difference cannot exceed 13V.
VCCto GND (Note 1)................................................-0.3V to +7V
VEEto GND (Note 1).................................................+0.3V to -7V
VCCto VEE(Note 1).............................................................+13V
TIN, SHDNto GND...................................................-0.3V to +7V
TOUT to GND (SHDN= GND)..........................................±13.2V
TOUT to GND (SHDN= VCC)................................................±7V
Output Short-Circuit 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
MAX3188E
MAX3189E
MAX3188E
MAX3189E
MAX3188E= 3kΩto 7kΩ,= 150pF to 1000pF,
measured from -3V
to +3V or +3V to -3V,
VCC= 5.4V, VEE=
-5.4V, TA= +25°C
|tPHL- tPLH|, Figure 1= 3kΩ,= 1000pF
VCC= VEE= 0, VTOUT= ±2V
VCC= 5.4V, VEE= -5.4V, RL= 3kΩSHDN= 5VSHDN= 5VSHDN= 0
VCC= 4.5V, VEE= -4.5V, RL= 3kΩ
CONDITIONS150
V/µs
Transition-Region Slew Rate
MAX3189E100tTSTransmitter SkewMbps0.25Maximum Data Rate±25ITOUTOutput Leakage Current±35±60Output Short-Circuit Current300RTOUTOutput ResistanceV±3.7VTOUTOutput Voltage Swing-6-4.5VEENegative Supply Voltage4.56VCCPositive Supply Voltage100TIN Input Hysteresis±0.01±1Input Leakage2.0VIHInput Logic Threshold High0.8VILInput Logic Threshold Low170ICCPositive Supply Current45IEENegative Supply Current0.21Shutdown Supply Current
UNITSMINTYPMAXSYMBOLPARAMETER2tENTransmitter Enable Time
VOUT= ±12V; VCC= VEE =0 or VCC = 5.4V,
VEE= -5.4V; SHDN= 0
DC CHARACTERISTICS
INPUT LOGIC (TIN, SHDN)
TRANSMITTER OUTPUTS
TIMING CHARACTERISTICS
MAX3188E/MAX3189E
±15kV ESD-Protected, 1Mbps, 1µA
RS-232 Transmitters in SOT23-6
SUPPLY CURRENT vs. DATA RATE
(CL = 150pF)
MAX3188E/9E toc01
DATA RATE (Mbps)
SUPPLY CURRENT (mA)
ICC (MAX3189E)
IEE (MAX3189E)
IEE (MAX3188E)
ICC (MAX3188E)0.40.30.10.20.50.60.70.80.91.0
SUPPLY CURRENT vs. DATA RATE
(CL = 1000pF)
MAX3188E/9E toc02
DATA RATE (Mbps)
SUPPLY CURRENT (mA)
MAX3189E
MAX3188E
MAX3188E
SUPPLY CURRENT
vs. OUTPUT CAPACITANCE
MAX3188E/9E toc03
OUTPUT CAPACITANCE (pF)
SUPPLY CURRENT (mA)
250kbps
120kbps
40kbps1000500150020002500
MAX3189E
SUPPLY CURRENT
vs. OUTPUT CAPACITANCE
MAX3188E/9E toc04
OUTPUT CAPACITANCE (pF)
SUPPLY CURRENT (mA)
500kbps
240kbps
40kbps
1Mbps1000500150020002500
MAX3188E
SLEW RATE vs. OUTPUT CAPACITANCE
MAX3188E/9E toc05
OUTPUT CAPACITANCE (pF)
SLEW RATE (V/
-SLEW
+SLEW1000500150020002500
MAX3189E
SLEW RATE vs. OUTPUT CAPACITANCE
MAX3188E/9E toc06
OUTPUT CAPACITANCE (pF)
SLEW RATE (V/
-SLEW
+SLEW
Typical Operating Characteristics
(VCC= +5.4V, VEE= -5.4V, RL= 3kΩ, TA= +25°C, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +4.5V to +6V, VEE= -4.5V to -6V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC = +5.4V, VEE = -5.4V,
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.
PARAMETERSYMBOLMINTYPMAXUNITS
±15TOUT
±15
CONDITIONS
Human Body Model
IEC 1000-4-2 Contact Discharge
IEC 1000-4-2 Air-Gap Discharge
ESD PROTECTION
Detailed Description
The MAX3188E/MAX3189E are EIA/TIA-232 transmitters
that convert CMOS/TTL logic levels to RS-232 signals.
They operate on ±4.5V to ±6V supplies and feature
enhanced electrostatic discharge protection (see ESD
Protection). The MAX3188E guarantees a 250kbps data
rate, and the MAX3189E guarantees a 1Mbps data rate
with worst-case loads of 3kΩin parallel with 1000pF.
The MAX3188E/MAX3189E invert the TOUT signal relative
to TIN (standard RS-232). The transmitter input does
not have a pull-up resistor and should be connected to
GND if unused.
Shutdown
The MAX3188E/MAX3189E feature 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 MAX3188E/
MAX3189Es’ transmitter output has extra protection
against static electricity. Maxim has developed state-of-
the-art structures enabling this pin to withstand ESD up
MAX3188E/MAX3189E
±15kV ESD-Protected, 1Mbps, 1µA
RS-232 Transmitters in SOT23-6
Pin Description
50%50%
50%50%
tPLH
tPHL
+5V
-5V
TOUT
TIN
VIH
VIL
Figure 1. Transmitter Propagation-Delay Timing
SHDN
TOUT0
-5V
+5V
+2V
1μs/div
MAX3188E
TRANSMITTER OUTPUT
SHUTDOWN WAVEFORM
MAX3188E/9E toc07
CL = 150pF
SHDN
TOUT0
-5V
+5V
+2V
1μs/div
MAX3189E
TRANSMITTER OUTPUT
SHUTDOWN WAVEFORM
MAX3188E/9E toc08
CL = 150pF
Typical Operating Characteristics (continued)
(VCC= +5.4V, VEE= -5.4V, RL= 3kΩ, TA= +25°C, unless otherwise noted.)
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
to ±15kV without damage or latch-up. The MAX3188E/
MAX3189E’s transmitter output is characterized for pro-
tection 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 MAX3188E/MAX3189E enable
the design of equipment that meets the highest level
(Level 4) of IEC 1000-4-2 without the need for additional
ESD-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 generally lower than that measured using
the Human Body. Figure 4 shows the IEC 1000-4-2
model, and Figure 5 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.
MAX3188E/MAX3189E
±15kV ESD-Protected, 1Mbps, 1µA
RS-232 Transmitters in SOT23-6
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
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
MAX3188E/MAX3189E
Applications Information
Power-Supply Sources
The MAX3188E/MAX3189E require ±4.5V to ±6V dual
supplies. For applications where these supply voltages
are not present, a DC-DC converter must be added.
Due to the MAX3188E/MAX3189Es’ 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
regulated charge pump (Table 1), the MAX3188E/
MAX3189E may be powered from the internal charge
pump (Figure 6). This eliminates the need for additional
external DC-DC converters to generate the required
±4.5V to ±6V dual supplies.
±15kV ESD-Protected, 1Mbps, 1µA
RS-232 Transmitters in SOT23-6
VCC
TIN
GNDGND
VCC
TOUT
MAX3188E
MAX3189E
(TABLE 1)
CBYPASS
0.1μF
0.1μF
0.1μF
0.1μF
0.1μF
SHDN
VEE
+3V SUPPLY
C1+
C1-
C2+
C2-
Figure 6. Powering the MAX3188E/MAX3189E
tR = 0.7ns TO 1ns30ns
60ns
100%
90%
10%
IPEAK
Figure 5. IEC 1000-4-2 ESD Generator Current Waveform

Partno	Mfg	Dc	Qty	Available	Descript
MAX3188EEUT+T	MAXIM	N/a	9616	avai	±15kV ESD-Protected, 1Mbps, 1µA RS-232 Transmitters in SOT23-6
MAX3189EEUT+T	MAXIM	N/a	1418	avai	±15kV ESD-Protected, 1Mbps, 1µA RS-232 Transmitters in SOT23-6