Datasheet

MAX13448E
±80V Fault-Protected Full-Duplex
RS-485 Transceiver
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0 to +5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +3.3V and T
A
= +25°C.) (Notes 2, 3)
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.
(All voltages reference to GND.)
Supply Voltage (V
CC
).............................................................+6V
Control Input Voltage (RE, DE)...................-0.3V to (V
CC
+ 0.3V)
Driver Input Voltage (DI).............................-0.3V to (V
CC
+ 0.3V)
Receiver Input Voltage (A, B (Note 1)) ................................±80V
Driver Output Voltage (Y, Z (Note 1)) ..................................±80V
Receiver Output Voltage (RO)....................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration (RO, A, B) ...............................Continuous
Continuous Power Dissipation (T
A
= +70°C)
14-Pin SO (derate 8.3mW/°C above +70°C)................667mW
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
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
V
CC
Supply Voltage Range V
CC
3.0 5.5 V
N o l oad , D E , D I, RE = 0V or V
C C
, V
C C
= 3.3V 15
Supply Current I
Q
No load, DE, DI, RE = 0V or V
CC
, V
CC
= 5V 15
mA
DE = GND, RE = V
CC
, V
CC
= 3.3V 100
Supply Current in Shutdown
Mode
I
SHDN
DE = GND, RE = V
CC
, V
CC
= 5V 100
µA
DE = GND, RE = GND, short to +60V 15
Supply Current with Output
Shorted to ±60V
I
SHRT
DE = GND, RE = GND, short to -60V 15
mA
DRIVER
R
L
= 100Ω, Figure 1 2 V
CC
Differential Driver Output V
OD
R
L
= 54Ω, Figure 1 1.5 V
CC
V
Change in Magnitude of
Differential Output Voltage
ΔV
OD
R
L
= 100Ω or 54Ω, Figure 1 (Note 4) -0.2 0.2 V
Driver Common-Mode Output
Voltage
V
OC
RL = 100Ω or 54Ω, Figure 1 V
CC
/2 3 V
Change in Magnitude of
Common-Mode Voltage
ΔV
OC
RL = 100Ω or 54Ω, Figure 1 (Note 4) -0.2 +0.2 V
DI = low, 0V ≤ V
Y
or V
Z
≤ +12V +250
Driver Short-Circuit Output
Current
I
OSD
DI = high, -7V ≤ V
Y
or V
Z
≤ V
CC
(Note 5) -250
mA
DI = low, (V
CC
- 1V) ≤ V
Y
or V
Z
≤ +12V +10
Driver Short-Circuit Foldback
Output Current
I
OSDF
DI = high, -7V ≤ V
Y
or V
Z
≤ +1V -10
mA
V
Y
or V
Z
≥ + 22V, R
L
= 100Ω +6
Driver-Limit Short-Circuit
Foldback Output Current
I
OSDL
V
Y
or V
Z
≤ -13V, R
L
= 100Ω -6
mA
Driver Input High Voltage V
DIH
2V
Driver Input Low Voltage V
DIL
0.8 V
Driver Input Current I
DIN
-1 +1 µA
Note 1: If the RS-485 transmission lines are unterminated and a short to a voltage V
SHT
occurs at a remote point on the line, an active
local driver (with DI switching) may see higher voltage than V
SHT
due to inductive kickback at the driver. Terminating the line
with a resistor equal to its characteristic impedance minimizes this kickback effect.