Operating Temperature Range ....................... -40NC to +125NC
Storage Temperature Range .......................... -65NC to +150NC
Junction Temperature ....................................................+150NC
Lead Temperature (soldering, 10s) ...............................+300NC
Soldering Temperature (reflow) ......................................+260NC
Package Thermal Characteristics (Note 1)
TSSOP
Junction-to-Ambient Thermal Resistance (q
JA
) ..........39°C/W
Junction-to-Case Thermal Resistance (q
JC
) .................3°C/W
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-lay-
er board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
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.
Electrical Characteristics
(V
CC
= +4.5V to +5.5V, V
L
= +1.62V to V
CC
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V,
V
L
= +1.8V, and T
A
= +25NC.) (Note 2)
PARAMETER
Supply Voltage
Logic Supply Voltage
Supply Current
Logic Supply Current
SYMBOL
V
CC
V
L
I
CC
I
L
DE =
RE
= high,
TERM
= high, no load
DE =
RE
= low,
TERM
= low, no load
Current into V
L
, no load on RO, device not
switching, DE =
RE
= high
Current into V
CC
, DE = low,
RE
=
TERM
=
high
Current into V
CC
, DE = low,
RE
= high,
TERM
= low
R
DIFF
= 100I, Figure 1 (Note 3)
R
DIFF
= 46I, Figure 1 (Note 3)
R
DIFF
= 100I or 46I, Figure 1 (Note 3)
R
DIFF
= 100I or 46I, Figure 1 (Note 3)
R
DIFF
= 100I or 46I, Figure 1 (Note 3)
0V
P
V
OUT
P
+12V
-7V
P
V
OUT
P
0V
-250
V
CC
/2
2.0
1.5
CONDITIONS
MIN
4.5
1.62
1.8
TYP
MAX
5.5
V
CC
6
12
2
30
8
UNITS
V
V
mA
FA
FA
mA
Shutdown Current
I
SHDN
DRIVER
Differential Driver Output
Change in Magnitude of
Differential Output Voltage
Driver Common-Mode Output
Voltage
Change In Magnitude of
Common-Mode Voltage
Driver Short-Circuit Output
Current
V
OD
DV
OD
V
OC
DV
OC
I
OSD
V
CC
V
CC
0.2
3
0.2
+280
V
V
V
V
mA
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Maxim Integrated
│
2
MAX13450E/MAX13451E
RS-485 Transceivers with Integrated
100Ω/120Ω Termination Resistors
Electrical Characteristics (continued)
(V
CC
= +4.5V to +5.5V, V
L
= +1.62V to V
CC
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V,
V
L
= +1.8V, and T
A
= +25NC.) (Note 2)
PARAMETER
Driver Short-Circuit Foldback
Output Current
RECEIVER
Input Current (A and B)
I
A, B
DE =
RE
= GND;
TERM
= V
L
; V
CC
= GND
or 5.5V
-7V
P
V
CM
P
+12V,
DE =
RE
= GND;
TERM
= V
L
; V
CC
= GND
V
A
+ V
B
= 0V
DI, DE,
RE, TERM,
SRL, TERM100, INV
DI, DE,
RE, TERM,
SRL, TERM100, INV
DI, DE,
RE, TERM,
TERM100, SRL, INV
I
OUT
= -1mA
I
OUT
= +1mA
0V
P
V
RO
P
V
L
0V
P
V
RO
P
V
L
Fault condition, I
OUT
= -1mA
Nonfault condition; I
OUT
= +1mA
-1
Q1
V
L
- 0.6
0.4
+0.01
-1
V
L
- 0.6
0.4
+1
Q80
2/3 x V
L
1/3 x V
L
+1
V
A
or V
B
= +12V
V
A
or V
B
= -7V
V
A
or V
B
= +12V
-100
-200
15
-50
125
FA
SYMBOL
I
OSDF
CONDITIONS
(V
CC
- 1V)
P
V
OUT
P
+12V
-7V
P
V
OUT
P
0V
MIN
+15
-15
TYP
MAX
UNITS
mA
Receiver Differential Threshold
Voltage
Receiver Input Hysteresis
LOGIC INTERFACE
Input High Voltage
Input Low Voltage
Input Current
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State Output Current at
Receiver
Receiver Output Short-Circuit
Current
Fault Output High Voltage
(MAX13451E)
Fault Output Low Voltage
(MAX13451E)
TERMINATION RESISTOR
100I Termination Resistor
120I Termination Resistor
Single-Ended Input Capacitance
vs. GND
ESD PROTECTION
V
TH
DV
TH
V
IH
V
IL
I
IN
V
ROH
V
ROL
I
OZR
I
OSR
V
FAULTH
V
FAULTL
mV
mV
V
V
FA
V
V
FA
mA
V
V
R
100
R
120
C
IN
TERM
= low, TERM100 = high
TERM
= low, TERM100 = low
f = 1MHz (MAX13451E only)
85
101
100
120
40
115
139
I
I
pF
Human Body Model
ESD Protection (A, B, Y, Z)
ESD Protection (All Other Pins)
IEC 61000-4-2 Air Gap Discharge
IEC 61000-4-2 Contact Discharge
Human Body Model
Q30
Q15
Q7
Q2
kV
www.maximintegrated.com
Maxim Integrated
│
3
MAX13450E/MAX13451E
RS-485 Transceivers with Integrated
100Ω/120Ω Termination Resistors
Switching Characteristics—SRL = HIGH
(V
CC
= +4.5V to +5.5V, V
L
= +1.62V to V
CC
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V,
V
L
= +1.8V and T
A
= +25NC.) (Note 2)
PARAMETER
DRIVER
Driver Propagation Delay
Differential Driver Output Skew
|t
DPLH
- t
DPHL
|
Driver Differential Output Rise or
Fall Time
Maximum Data Rate
Driver Enable from Shutdown to
Output High
Driver Enable from Shutdown to
Output Low
Driver Disable Delay
Driver Enable Delay
RECEIVER
Receiver Propagation Delay
Receiver Output Skew
Maximum Data Rate
Receiver Enable to Output High
Receiver Enable to Output Low
Receiver Disable from High
Receiver Disable from Low
Receiver Enable from Shutdown
to Output High
Receiver Enable from Shutdown
to Output Low
TERMINATION RESISTOR
Turn-Off Time
Turn-On Time
t
RTZ
t
RTEN
Figure 10
Figure 10
120
1
Fs
Fs
t
RPLH
t
RPHL
t
RSKEW
DR
MAX
t
RZH
t
RZL
t
RHZ
t
RLZ
S2 closed, C
L
= 100pF, R
L
= 500I,
Figures 8 and 9
S1 closed, C
L
= 100pF, R
L
= 500I,
Figures 8 and 9
Figures 8 and 9
Figures 8 and 9
C
L
= 15pF, |V
ID
|
R
2.0V; t
LH
, t
HL
P
15ns,
Figures 6 and 7
C
L
= 15pF, Figures 6 and 7
500
50
50
50
50
5000
5000
200
200
30
ns
ns
kbps
ns
ns
ns
ns
ns
ns
t
DPLH
t
DPHL
t
DSKEW
t
HL
t
LH
DR
MAX
t
DZH(SHDN)
t
DZL(SHDN)
t
DLZ
, t
DHZ
t
DZL
, t
DZH
S2 closed, R
L
= 500I, C
L
= 100pF,
Figures 4 and 5
S1 closed, R
L
= 500I, C
L
= 100pF,
Figures 4 and 5
Figures 4 and 5
Figures 4 and 5
R
DIFF
= 54I, C
L
= 50pF, Figures 2 and 3
R
DIFF
= 54I, C
L
= 50pF, Figure 3
R
DIFF
= 54I, C
L
= 50pF, Figures 2 and 3
100
100
500
4500
5200
100
2500
800
800
100
600
600
ns
ns
ns
kbps
ns
ns
ns
ns
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
t
RZH(SHDN)
Figures 8 and 9
t
RZL(SHDN)
Figures 8 and 9
www.maximintegrated.com
Maxim Integrated
│
4
MAX13450E/MAX13451E
RS-485 Transceivers with Integrated
100Ω/120Ω Termination Resistors
Switching Characteristics—SRL = LOW
(V
CC
= +4.5V to +5.5V, V
L
= +1.62V to V
CC
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V,
V
L
= +1.8V, and T
A
= +25NC.) (Note 2)
PARAMETER
DRIVER
Driver Propagation Delay
Differential Driver Output Skew
|t
DPLH
- t
DPHL
|
Driver Differential Output Rise or
Fall Time
Maximum Data Rate
Driver Enable from Shutdown to
Output High
Driver Enable from Shutdown to
Output Low
Driver Disable Delay
Driver Enable Delay
RECEIVER
Receiver Propagation Delay
Receiver Output Skew
Maximum Data Rate
Receiver Enable to Output High
Receiver Enable to Output Low
Receiver Disable Time from High
Receiver Disable Time from Low
Receiver Enable from Shutdown
to Output High
Receiver Enable from Shutdown
to Output Low
TERMINATION RESISTOR
Turn-Off Time
Turn-On Time
t
RTZ
t
RTEN
Figure 10
Figure 10
120
1
Fs
Fs
t
RPLH
t
RPHL
t
RSKEW
DR
MAX
t
RZH
t
RZL
t
RHZ
t
RLZ
S2 closed, C
L
= 100pF, R
L
= 500I,
Figures 8 and 9
S1 closed, C
L
= 100pF, R
L
= 500I,
Figures 8 and 9
Figures 8 and 9
Figures 8 and 9
C
L
= 15pF, |V
ID
|
R
2.0V; t
LH
, t
HL
P
15ns,
Figures 6 and 7
C
L
= 15pF, Figures 6 and 7
20
50
50
50
50
2000
2000
50
50
6
ns
ns
Mbps
ns
ns
ns
ns
ns
ns
t
DPLH
t
DPHL
t
DSKEW
t
HL
, t
LH
DR
MAX
t
DZH(SHDN)
t
DZL(SHDN)
t
DLZ
, t
DHZ
t
DZL
, t
DZH
S2 closed, R
L
= 500I, C
L
= 100pF,
Figures 4 and 5
S1 closed, R
L
= 500I, C
L
= 100pF,
Figures 4 and 5
Figures 4 and 5
Figures 4 and 5
R
DIFF
= 54I, C
L
= 50pF, Figures 2 and 3
R
DIFF
= 54I, C
L
= 50pF, Figure 3
R
DIFF
= 54I, C
L
= 50pF, Figures 2 and 3
20
2000
2000
100
100
50
50
6
15
ns
ns
ns
Mbps
ns
ns
ns
ns
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
t
RZH(SHDN)
Figures 8 and 9
t
RZL(SHDN)
Figures 8 and 9
Note 2:
All devices are 100% production tested at T
A
= +25°C. Limits over temperature are guaranteed by design.
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