MAX13487E Datasheet, PDF (5/17 Pages) Maxim Integrated Products – Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control

Half-Duplex RS-485-/RS-422-Compatible
Transceiver with AutoDirection Control
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
Receiver Enable Delay
Time to Shutdown
t_RZL
(SHDN)
t_RED
t_SHDN
Figure 8
Figure 3
2200
ns
70
ns
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.
(V_CC = +5.0V, T_A = +25°C, unless otherwise noted.)
Typical Operating Characteristics
SUPPLY CURRENT vs. TEMPERATURE
4.0
NO LOAD
3.8
3.6
3.4
3.2
3.0
-40 -15
10
35
60
85
TEMPERATURE (°C)
OUTPUT CURRENT
vs. RECEIVER OUTPUT-HIGH VOLTAGE
35
28
21
14
7
0
0
1
2
3
4
5
OUTPUT-HIGH VOLTAGE (V)
OUTPUT CURRENT
vs. RECEIVER OUTPUT-LOW VOLTAGE
60
50
40
30
20
10
0
0
1
2
3
4
5
OUTPUT-LOW VOLTAGE (V)
RECEIVER OUTPUT-HIGH VOLTAGE
vs. TEMPERATURE
5.4
I_O = 1mA
5.2
5.0
4.8
4.6
RECEIVER OUTPUT-LOW
VOLTAGE vs. TEMPERATURE
0.5
I_O = 1mA
0.4
0.3
0.2
DIFFERENTIAL OUTPUT CURRENT
vs. DIFFERENTIAL OUTPUT VOLTAGE
80
60
40
4.4
20
0.1
4.2
4.0
-40 -15
10
35
60
85
TEMPERATURE (°C)
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
0
0
1
2
3
4
5
OUTPUT VOLTAGE (V)
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