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MAX13223EEUP+

P1-P3P4-P6P7-P9P10-P12
General Description
The MAX13223E is a +3.0V to +5.5V-powered EIA/TIA-
232 and V.28 communications interface with fault protec-
tion on the RS-232 line interface. This allows shorts of the
transmitter outputs and receiver inputs to voltages in the
±70V range without adversely affecting the MAX13223E.
The MAX13223E achieves 1µA supply current using
Maxim’s AutoShutdown™ feature. The MAX13223E
automatically enters a low-power shutdown mode when
the RS-232 cable is disconnected or the receivers are
inactive. The device turns on again when a valid transi-
tion at any receiver input is sensed. A proprietary, high-
efficiency, dual charge-pump power supply and a
low-dropout transmitter combine to deliver true RS-232
performance from a single +3.0V to +5.5V supply.
The MAX13223E has two receivers and two drivers and is
guaranteed to run at data rates of 250kbps for one trans-
mitter switching while maintaining RS-232 output levels.
The MAX13223E operates from input voltages ranging
from +3.0V to +5.5V and is available in a 20-pin, 6.5mm
x 4.4mm, TSSOP package. The MAX13223E is speci-
fied over the -40°C to +85°C temperature range.
Applications
Automotive
Telematics Equipment
Base Stations
Utility Meters
Industrial Equipment
Telecomm Equipment
POS Terminal Equipment
Features
♦ ±70V Fault Protection
♦ +3.0V to +5.5V Supply Voltage
♦ Overvoltage Current Limiting
♦ Current Protection at Transmitter Outputs
♦ AutoShutdown
♦ 250kbps (Max) Data Rate
♦ Low Current Consumption in Shutdown 1µA (typ)
♦ Thermal Shutdown Protection
♦ ±8kV IEC 61000-4-2 Contact-Discharge Method
♦ -40°C to +85°C Operating Temperature Range
MAX13223E
±70V Fault-Protected, 3.0V to 5.5V,
2Tx/2Rx RS-232 Transceiver
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
19-4585; Rev 1; 2/11
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.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
PART TEMP RANGE PIN-PACKAGE
MAX13223EEUP+ -40°C to +85°C 20 TSSOP
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
MAX13223E
FORCEON
EN
R2OUT
R1OUT
FORCEOFF
INVALID
R2IN
GND
RS-232
OUTPUTS
TTL/CMOS
INPUTS
T2IN
T1IN
R1IN
T2OUT
T1OUT
V-
V+
V
CC
V
CC
V
CC
RS-232
INPUTS
TO POWER-
MANAGEMENT
UNIT
TTL/CMOS
OUTPUTS
C3
C
BYPASS
0.1μF
C4
5kΩ
5kΩ
C2-
C2+
C2
C1-
C1+
C1
Typical Operating Circuit
MAX13223E
±70V Fault-Protected, 3.0V to 5.5V,
2Tx/2Rx RS-232 Transceiver
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.3V, T
A
= +25°C, unless other-
wise noted. For V
CC
= +3.0V to +3.6V, C1 = C2 = C3 = 0.1µF, C4 = 1µF. For V
CC
= +4.5V to +5.5V, C1 = 47nF, C2 = C3 = 330nF,
C4 = 1µF.) (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.
(Voltages referenced to GND.)
V
CC
...................................................................... -0.3V to +7.0V
V+ ..........................................................................-0.3V to +7.0V
V- ...........................................................................+0.3V to -7.0V
V+ to V- ................................................................................+13V
Input Voltages
T1IN, T2IN, EN, FORCEON, FORCEOFF ..........-0.3V to +6.0V
R1IN, R2IN .......................................................................±70V
Output Voltages
T1OUT, T2OUT ................................................................±70V
R1OUT, R2OUT, INVALID ......................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration
T1OUT, T2OUT.......................................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
TSSOP (derate 13.6mW/°C above +70°C) ................1084mW
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
PACKAGE THERMAL CHARACTERISTICS (Note 1)
TSSOP
Junction-to-Ambient Thermal Resistance (θ
JA
) ........73.8°C/W
Junction-to-Case Thermal Resistance (θ
JC
) ................20°C/W
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
CC
3.0 5.5 V
Supply Current
AutoShutdown disabled (FORCEON =
FORCEOFF = V
CC
), no load
8 15 mA
Supply Current AutoShutdown I
ASD
FORCEON = GND, FORCEOFF = V
CC
,
R1IN and R2IN idle, T1IN and T2IN idle
1.0 10 μA
Supply Current Shutdown I
SD
FORCEOFF = GND 1.0 10 μA
LOGIC INPUTS
Input-Logic Low V
T_IN,LO
T_IN, EN, FORCEON, FORCEOFF,
V
CC
= +3.3V to +3.6V, +5.0V to +5.5V
0.8 V
V
CC
= +3.3V 2.0
Input-Logic High V
T_IN,HI
T_IN, FORCEON,
FORCEOFF, EN
V
CC
= +5.0V 2.4
V
Transmitter Input Hysteresis V
TX,INHYS
0.5 V
Input Leakage Current I
IN,LKG
T_IN, EN, FORCEON, FORCEOFF ±0.01 ±1 μA
RECEIVER OUTPUTS
Output Leakage Current I
RX,OUT,LKG
EN = V
CC
±0.05 ±10 μA
Output-Voltage Low V
RX,OUT,LO
I
OUT
= 1.6mA 0.4 V
Output-Voltage High V
RX,OUT,HI
I
OUT
= -1.0mA
V
CC
-
0.6
V
CC
-
0.2
V
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
.
MAX13223E
±70V Fault-Protected, 3.0V to 5.5V,
2Tx/2Rx RS-232 Transceiver
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.0V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.3V, T
A
= +25°C, unless other-
wise noted. For V
CC
= +3.0V to +3.6V, C1 = C2 = C3 = 0.1µF, C4 = 1µF. For V
CC
= +4.5V to +5.5V, C1 = 47nF, C2 = C3 = 330nF,
C4 = 1µF.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
INVALID OUTPUT (AutoShutdown (FORCEON = GND, FORCEOFF = V
CC
))
Positive level 2.7
Receiver-Input Level to INVALID
Output High
V
RX_IN,
INV_HI
Figure 6a
Negative level -2.7
V
Receiver-Input Level to INVALID
Output Low
V
RX_IN,
INV_LO
Figure 6a -0.3 +0.3 V
INVALID Output-Voltage Low V
RX,INV_LO
I
OUT
= 1.6mA 0.4 V
INVALID Output-Voltage High V
RX,INV_HI
I
OUT
= -1.0mA
V
CC
-
0.6
V
RECEIVER INPUTS
Input-Voltage Range V
RX,IN
(Note 3) -70 +70 V
Overvoltage Threshold |V
RX,OVTHR
| 24 28.3 32 V
V
CC
= +3.3V 0.6
Input Threshold Low V
RX,LO
V
CC
= +5.0V 0.8
V
V
CC
= +3.3V 2.4
Input Threshold High V
RX,HI
V
CC
= +5.0V 2.4
V
-24V < V
R_IN
< +24V (Note 3) 3 5 7
V
CC
= V+ = V- = 0V 35 250
Input Resistance R
RX,INRES
+32V < |V
R_IN
| < +70V 35 250
k
TRANSMITTER OUTPUTS
Output-Voltage Swing V
O
R
L
= 3k, Figure 4 ±5 ±6 V
Output Resistance R
TX,ROUT
V
CC
= V+ = V- = 0V, V
T_OUT
= ±2V 300
Overvoltage Protection Threshold |V
TX,FB
| 14 19 V
Output Short-Circuit Current I
TX,SHORT
T_OUT = GND ±80 mA
V
T_OUT
> V
TX,FB
6
Overvoltage Current I
TX,IFBOUT
V
T_OUT
< -V
TX,FB
-6
mA
V
T_OUT
= +12V 450 900
Output Leakage Current in
Shutdown Mode
I
TX,LKG
V
T_OUT
= -12V, V
CC
= 0V, or +3V to +5.5V
in shutdown mode
-150 -80
μA
PROTECTION
Overvoltage Protection Range R1IN, R2IN, T1OUT, T2OUT -70 +70 V
ESD PROTECTION (Note 4)
IEC 6100-4-2 Contact Discharge ±8
R1IN, R2IN, T1OUT, T2OUT
Human Body Model ±8
All Other Pins Human Body Model ±2
kV
P1-P3P4-P6P7-P9P10-P12

MAX13223EEUP+

Mfr. #:
Buy MAX13223EEUP+
Manufacturer:
Maxim Integrated
Description:
RS-232 Interface IC 3-5.5V 250Kbps RS232 Line Driver/Receiver
Lifecycle:
New from this manufacturer.
Delivery:
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