MAX13448E Datasheet, PDF (5/14 Pages) Maxim Integrated Products – 80V Fault-Protected Full-Duplex RS-485 Transceiver

±80V Fault-Protected Full-Duplex
RS-485 Transceiver
SWITCHING CHARACTERISTICS (V_CC = +5V ±10%) (continued)
(T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at V_CC = +5V and T_A = +25°C.)
PARAMETER
Driver Enable Time to Output High
Driver Disable Time from
Output High
SYMBOL
CONDITION
t_DZH R_L = 500Ω, C_L = 50pF, Figure 4
t_DHZ R_L = 500Ω, C_L = 50pF, Figure 4
MIN TYP MAX UNITS
1500
ns
1000
ns
Driver Enable Time from
Shutdown to Output High
t_DZH(SHDN) R_L = 500Ω, C_L = 50pF, Figure 4
Driver Enable Time to Output Low
t_DZL R_L = 500Ω, C_L = 50pF, Figure 5
Driver Disable Time from
Output Low
t_DLZ R_L = 500Ω, C_L = 50pF, Figure 5
8
µs
1000
ns
2
µs
Driver Enable Time from
Shutdown to Output Low
Driver Time to Shutdown
RECEIVER
t_DZL(SHDN) R_L = 500Ω, C_L = 50pF, Figure 5
t_SHDN R_L = 500Ω, C_L = 50pF
8
µs
12
µs
Receiver Propagation Delay
Receiver Output Skew
t_RPLH,
t_RPHL
t_RSKEW
C_L = 20pF, V_ID = 2V, V_CM = 0V,
Figure 6
C_L = 20pF, t_RSKEW = [t_RPLH - t_RPHL],
Figure 6
2000
ns
200
ns
Receiver Enable Time to
Output High
t_RZH R_L = 1kΩ, C_L = 20pF, Figure 7
1000
ns
Receiver Disable Time from
Output High
t_RHZ R_L = 1kΩ, C_L = 20pF, Figure 7
150
ns
Receiver Wake Time from
Shutdown
t_RWAKE R_L = 1kΩ, C_L = 20pF, Figure 7
8
µs
Receiver Enable Time to
Output Low
t_RZL R_L = 1kΩ, C_L = 20pF, Figure 7
1000
ns
Receiver Disable Time from
Output Low
Receiver Time to Shutdown
t_RLZ
t_SHDN
R_L = 1kΩ, C_L = 20pF, Figure 7
R_L = 500Ω, C_L = 50pF
150
ns
150
ns
Note 2: Parameters are 100% production tested at T_A = +25°C, unless otherwise noted. Limits over temperature are guaranteed by
design.
Note 3: All currents into the device are positive. All currents out of the device are negative. All voltages are referenced to device
ground, unless otherwise noted.
Note 4: ΔV_OD and ΔV_OC are the changes in V_OD and V_OC, respectively, when the DI input changes state.
Note 5: The short-circuit output current applies to peak current just prior to foldback current limiting. The short-circuit foldback output
current applies during current limiting to allow a recover from bus contention.
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