Datasheet

MAX13487E/MAX13488E
Half-Duplex RS-485-/RS-422-Compatible
Transceiver with AutoDirection Control
_______________________________________________________________________________________ 5
SWITCHING CHARACTERISTICS—MAX13488E (continued)
(V
CC
= +5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Receiver Enable from Shutdown
to Output Low
t
RZL
(SHDN)
Figure 8 2200 ns
Receiver Enable Delay t
RED
Figure 3 70 ns
Time to Shutdown t
SHDN
50 340 700 ns
Note 1: All currents into the device are positive. All currents out of the device are negative. All voltages referred to device ground,
unless otherwise noted.
Note 2: This is a differential voltage from A to B that the driving device must see on the bus to disable its driver.
Note 3: The short-circuit output current applied to peak current just prior to foldback current limiting. The short-circuit foldback out-
put current applies during current limiting to allow a recovery from bus contention.
Typical Operating Characteristics
(V
CC
= +5.0V, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. TEMPERATURE
MAX13487Etoc01
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
603510-15
3.2
3.4
3.6
3.8
4.0
3.0
-40 85
NO LOAD
OUTPUT CURRENT
vs. RECEIVER OUTPUT-HIGH VOLTAGE
MAX13487Etoc02
OUTPUT-HIGH VOLTAGE (V)
OUTPUT CURRENT (mA)
4321
7
14
21
28
35
0
05
OUTPUT CURRENT
vs. RECEIVER OUTPUT-LOW VOLTAGE
MAX13487Etoc03
OUTPUT-LOW VOLTAGE (V)
OUTPUT CURRENT (mA)
4321
10
20
30
40
50
60
0
05
RECEIVER OUTPUT-HIGH VOLTAGE
vs. TEMPERATURE
MAX13487Etoc04
TEMPERATURE (°C)
OUTPUT-HIGH VOLTAGE (V)
603510-15
4.2
4.6
4.4
4.8
5.0
5.2
5.4
4.0
-40 85
I
O
= 1mA
RECEIVER OUTPUT-LOW
VOLTAGE vs. TEMPERATURE
MAX13487Etoc05
TEMPERATURE (°C)
OUTPUT-LOW VOLTAGE (V)
603510-15
0.1
0.2
0.3
0.4
0.5
0
-40 85
I
O
= 1mA
DIFFERENTIAL OUTPUT CURRENT
vs. DIFFERENTIAL OUTPUT VOLTAGE
MAX13487Etoc06
OUTPUT VOLTAGE (V)
OUTPUT CURRENT (mA)
4321
20
40
60
80
0
05