DI, TXD ............................... -0.3V to (V
CC
+ 0.3V)
A, B (Note 1) (MAX13442E/MAX13444E)...........................±80V
A, B (Note 1) (MAX13443E) ................................................±60V
RO ............................................................ -0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration (RO, A, B) ..............................Continuous
Continuous Power Dissipation (T
A
= +70°C)
SO (derate 7.6mW/°C above +70°C) ..........................606mW
Operating Temperature Range ......................... -40°C to +125°C
Storage Temperature Range ............................ -65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) ................................. +300°C
Soldering Temperature (reflow) .......................................+260°C
Note 1:
During normal operation, a termination resistor must be connected between A and B in order to guarantee overvoltage protec-
tion up to the absolute maximum rating of this device. When not in operation, these devices can withstand fault voltages up
to the maximum rating without a termination resistor and will not be damaged.
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.
Package Thermal Characteristics
(Note 2)
SO
Junction-to-Ambient Thermal Resistance (θ
JA
) ........132°C/W
Junction-to-Case Thermal Resistance (θ
JC
) ...............38°C/W
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.maximintegrated.com/thermal-tutorial.
DC Electrical Characteristics
PARAMETER
DRIVER
Differential Driver Output
Change in Magnitude of
Differential Output Voltage
Driver Common-Mode
Output Voltage
Change in Magnitude of
Common-Mode Voltage
DRIVER LOGIC
Driver-Input High Voltage
Driver-Input Low Voltage
Driver-Input Current
Driver Short-Circuit Output
Current (Note 4)
Driver Short-Circuit Foldback
Output Current
Driver-Limit Short-Circuit
Foldback Output Current
V
DIH
V
DIL
I
DIN
I
OSD
V
OD
(V
CC
= +4.75V to +5.25V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
SYMBOL
CONDITIONS
Figure 1, R
L
= 100Ω
Figure 1, R
L
= 54Ω
Figure 1, R
L
= 100Ω or 54Ω (Note 3)
Figure 1, R
L
= 100Ω or 54Ω
Figure 1, R
L
= 100Ω or 54Ω (Note 3)
(MAX13442E/MAX13443E)
2
0.8
±2
0V ≤ V
OUT
≤ +12V
-7V ≤ V
OUT
≤ V
CC
(V
CC
- 1V) ≤ V
OUT
≤ +12V (Note 4)
-7V ≤ V
OUT
≤ +1V (Note 4)
V
OUT
≥ +20V, R
L
= 100Ω
V
OUT
≤ -15V, R
L
= 100Ω
+6
-6
-350
+25
-25
+350
V
CC
/2
MIN
2
1.5
TYP
MAX
V
CC
V
CC
0.2
3
0.2
UNITS
V
V
V
V
ΔV
OD
V
OC
DV
OC
V
V
µA
mA
mA
mA
I
OSDF
I
OSDL
www.maximintegrated.com
Maxim Integrated
│
2
MAX13442E/MAX13443E/
MAX13444E
±15kV ESD-Protected, ±80V Fault-Protected,
Fail-Safe RS-485/J1708 Transceivers
DC Electrical Characteristics (continued)
(V
CC
= +4.75V to +5.25V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
PARAMETER
RECEIVER
Input Current
Receiver-Differential Threshold
Voltage
Receiver-Input Hysteresis
RECEIVER LOGIC
Output-High Voltage
Output-Low Voltage
Three-State Output Current at
Receiver
Receiver Input Resistance
Receiver Output Short-Circuit
Current
CONTROL
Control-Input High Voltage
Input-Current Latch During First
Rising Edge
SUPPLY CURRENT
DE = V
CC
,
RE
= GND
(MAX13442E)
(DE =
RE
= GND)
(MAX13444E)
(DE = V
CC
,
RE
= GND)
(MAX13443E)
V
CIH
I
IN
DE,
DE, RE
DE,
RE
2
90
V
µA
V
OH
V
OL
I
OZR
R
IN
I
OSR
Figure 2, I
OH
= -1.6mA
Figure 2, I
OL
= 1mA
0V ≤ V
A, B
≤ V
CC
-7V ≤ V
CM
≤ +12V
0V ≤ V
RO
≤ V
CC
48
±95
V
CC
- 0.6
0.4
±1
V
V
µA
kΩ
mA
I
A,B
A, B
receive
mode
V
CC
= GND, V
A, B
= 12V
V
A, B
= -7V
V
A, B
=
±80V
-200
25
250
-150
±6
-50
µA
mA
mV
mV
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
TH
ΔV
TH
-7V ≤ V
CM
≤ +12V
Normal Operation
I
CC
No load,
DI = V
CC
or GND
30
mA
10
20
10
100
10
±15
mA
DE = GND,
RE
= V
CC
(MAX13442E/MAX13443E)
Supply Current in Shutdown
Mode
I
SHDN
DE = GND,
RE
= V
CC
, T
A
= +25°C
(MAX13442E/MAX13443E)
DE
=
RE
= V
CC
(MAX13444E)
DE
=
RE
= V
CC
, T
A
= +25°C (MAX13444E)
Supply Current with Output
Shorted to ±60V
ISHRT
DE = GND,
RE
= GND, no load
output in three-state (MAX13443E)
µA
www.maximintegrated.com
Maxim Integrated
│
3
MAX13442E/MAX13443E/
MAX13444E
Protection Specifications
±15kV ESD-Protected, ±80V Fault-Protected,
Fail-Safe RS-485/J1708 Transceivers
(V
CC
= +4.75V to +5.25V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
PARAMETER
Overvoltage Protection
ESD Protection
SYMBOL
CONDITIONS
MAX13442E/
A, B; R
SOURCE
= 0Ω, MAX13444E
R
L
= 54Ω
MAX13443E
A, B
Human Body Model
MIN
±80
±60
±15
kV
TYP
MAX
UNITS
V
Switching Characteristics (MAX13442E/MAX13444E)
(V
CC
= +4.75V to +5.25V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
PARAMETER
Driver Propagation Delay
Driver Differential Propagation Delay
Driver Differential Output
Transition Time
Driver Output Skew
Differential Driver Output Skew
Maximum Data Rate
Driver Enable Time to Output High
Driver Disable Time from Output High
Driver Enable Time from Shutdown to
Output High
Driver Enable Time to Output Low
Driver Disable Time from Output Low
Driver Enable Time from Shutdown to
Output Low
Driver Time to Shutdown
Receiver Propagation Delay
Receiver Output Skew
Receiver Enable Time to Output High
Receiver Disable Time from Output High
Receiver Wake Time from Shutdown
Receiver Enable Time to Output Low
Receiver Disable Time from Output Low
Receiver Time to Shutdown
SYMBOL
t
PLHA
,
t
PLHB
t
DPLH
,
t
DPHL
t
LH
,t
HL
CONDITIONS
Figure 3, R
L
= 54Ω, C
L
= 50pF (MAX13442E)
R
DIFF
= 60Ω, C
DIFF
= 100pF (MAX13444E)
R
L
= 54Ω, C
L
= 50pF, Figure 4
R
L
= 54Ω, C
L
= 50pF, Figure 4
200
MIN
TYP
MAX
2000
2000
2000
350
200
250
R
L
= 500Ω, C
L
= 50pF, Figure 5
R
L
= 500Ω, C
L
= 50pF, Figure 5
R
L
= 500Ω, C
L
= 50pF, Figure 5
R
L
= 500Ω, C
L
= 50pF, Figure 6
R
L
= 500Ω, C
L
= 50pF, Figure 6
R
L
= 500Ω, C
L
= 50pF, Figure 6
R
L
= 500Ω, C
L
= 50pF
C
L
= 20pF, V
ID
= 2V, V
CM
= 0V, Figure 7
C
L
= 20pF, t
RSKEW
= |t
RPLH
- t
RPHL
|
R
L
= 1kΩ, C
L
= 20pF, Figure 8
R
L
= 1kΩ, C
L
= 20pF, Figure 8
R
L
= 1kΩ, C
L
= 20pF, Figure 8
R
L
= 1kΩ, C
L
= 20pF, Figure 8
R
L
= 500Ω, C
L
= 50pF
2000
2000
4.2
2000
2000
4.2
800
2000
200
2000
2000
4.2
2000
2000
800
UNITS
ns
ns
ns
ns
ns
kbps
ns
ns
µs
ns
ns
µs
ns
ns
ns
ns
ns
µs
ns
ns
ns
R
L
= 54Ω, C
L
= 50pF,
t
SKEWAB
,
t
= |t
PLHA
- t
PHLB
|,
t
SKEWBA SKEWAB
t
SKEWBA
= |t
PLHB
- t
PHLA
|
t
DSKEW
f
MAX
t
PDZH
t
PDHZ
t
PDHS
t
PDZL
t
PDLZ
t
PDLS
t
SHDN
t
RPLH
,
t
RPHL
t
RSKEW
t
RPZH
t
RPHZ
t
RPZL
t
RPLZ
t
SHDN
R
L
= 54Ω, C
L
= 50pF,
t
DSKEW
= |t
DPLH
- t
DPHL
|
t
RPWAKE
R
L
= 1kΩ, C
L
= 20pF, Figure 8
www.maximintegrated.com
Maxim Integrated
│
4
MAX13442E/MAX13443E/
MAX13444E
±15kV ESD-Protected, ±80V Fault-Protected,
Fail-Safe RS-485/J1708 Transceivers
Switching Characteristics (MAX13443E)
(V
CC
= +4.75V to +5.25V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
PARAMETER
Driver Propagation Delay
Driver Differential Propagation Delay
Driver Differential Output
Transition Time
Driver Output Skew
Differential Driver Output Skew
Maximum Data Rate
Driver Enable Time to Output High
Driver Disable Time from Output High
Driver Enable Time from Shutdown to
Output High
Driver Enable Time to Output Low
Driver Disable Time from Output Low
Driver Enable Time from Shutdown to
Output Low
Driver Time to Shutdown
Receiver Propagation Delay
Receiver Output Skew
Receiver Enable Time to Output High
Receiver Disable Time from Output High
Receiver Wake Time from Shutdown
Receiver Enable Wake Time from
Shutdown
Receiver Disable Time from Output Low
Receiver Time to Shutdown
SYMBOL
t
PLHA
,
t
PLHB
t
DPLH
,
t
DPHL
t
LH
,t
HL
CONDITIONS
R
L
= 27Ω, C
L
= 50pF, Figure 3
R
L
= 54Ω, C
L
= 50pF, Figure 4
R
L
= 54Ω, CL = 50pF, Figure 4
MIN
TYP
MAX
60
60
25
10
10
10
RL = 500Ω, C
L
= 50pF, Figure 5
RL = 500Ω, C
L
= 50pF, Figure 5
R
L
= 500Ω, C
L
= 50pF, Figure 5
R
L
= 500Ω, C
L
= 50pF, Figure 6
R
L
= 500Ω, C
L
= 50pF, Figure 6
R
L
= 500Ω, C
L
= 50pF, Figure 6
R
L
= 500Ω, C
L
= 50pF, Figure 6
C
L
= 20pF, V
ID
= 2V, V
CM
= 0V, Figure 7
C
L
= 20pF, t
RSKEW
= |t
RPLH
- t
RPHL
|
R
L
= 1kΩ, C
L
= 20pF, Figure 8
R
L
= 1kΩ, C
L
= 20pF, Figure 8
1200
1200
4.2
1200
1200
4.2
800
85
15
400
400
4.2
400
400
800
UNITS
ns
ns
ns
ns
ns
Mbps
ns
ns
µs
ns
ns
Fs
ns
ns
ns
ns
ns
µs
ns
ns
ns
R = 54Ω, C
L
= 50pF,
t
SKEWAB
,
L
t
= |t
PLHA
- t
PHLB
|,
t
SKEWBA SKEWAB
t
SKEWBA
= |t
PLHB
- t
PHLA
|
t
DSKEW
f
MAX
t
PDZH
t
PDHZ
t
PDHS
t
PDZL
t
PDLZ
t
PDLS
t
SHDN
t
RPLH
,
t
RPHL
t
RSKEW
t
RPZH
t
RPHZ
R
L
= 54Ω, C
L
= 50pF,
t
DSKEW
= |t
DPLH
- t
DPHL
|
t
RPWAKE
R
L
= 1kΩ, C
L
= 20pF, Figure 8
t
RPSH
t
RPLZ
t
SHDN
R
L
= 1kΩ, C
L
= 20pF, Figure 8
R
L
= 1kΩ, C
L
= 20pF, Figure 8
R
L
= 500Ω, C
L
= 50pF
Note 3:
ΔV
OD
and ΔV
OC
are the changes in V
OD
and V
OC
, respectively, when the DI input changes state.
Note 4:
The short-circuit output current applies to peak current just before foldback current limiting. The short-circuit foldback output
current applies during current limiting to allow a recovery from bus contention.
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