Rainbow-electronics MAX13486E Bedienungsanleitung Seite 3

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Seitenansicht 2
MAX13485E/MAX13486E
Half-Duplex RS-485/RS-422 Transceivers in µDFN
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (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.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
Output-Low Voltage V
OL
I
O
= 1mA, V
A
- V
B
< -V
TH
0.4 V
Tri-State Output Current at
Receiver
I
OZR
0V
<
V
O
<
V
CC
±1 µA
Receiver Input Resistance R
IN
-7V
<
V
CM
<
+12V 48 k
Receiver-Output Short-Circuit
Current
I
OSR
0V
<
V
RO
<
V
CC
±7
±95
mA
POWER SUPPLY
Supply Voltage V
CC
4.75 5.25
V
Supply Current I
CC
DE = 1, RE = 0, no load 4.5 mA
Shutdown Supply Current I
SHDN
DE = 0, RE = 1 10 µA
ESD PROTECTION
Air Gap Discharge IEC61000-4-2
(MAX13485E)
±15
ESD Protection (A, B)
Human Body Model
±15
kV
ESD Protection (All Other Pins) Human Body Model ±2 kV
SWITCHING CHARACTERISTICS—MAX13485E
(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.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
DRIVER
t
DPLH
200 1000
Driver Propagation Delay
t
DPHL
R
DIFF
= 54, C
L
= 50pF, Figures 2 and 3
200 1000
ns
t
HL
250 900
Driver-Differential Output Rise or
Fall Time
t
LH
R
DIFF
= 54, C
L
= 50pF, Figures 2 and 3
250 900
ns
Driver-Differential Output Skew
|t
DPLH
- t
DPHL
|
t
DSKEW
R
DIFF
= 54, C
L
= 50pF, Figures 2 and 3
140
ns
Maximum Data Rate
500
kbps
Driver Enable to Output High t
DZH
Figures 4 and 5
2500
ns
Driver Enable to Output Low t
DZL
Figures 4 and 5
2500
ns
Driver Disable Time from High t
DHZ
Figures 4 and 5
100
ns
Driver Disable Time from Low t
DLZ
Figures 4 and 5
100
ns
Driver Enable from Shutdown to
Output High
t
DZH
(
SHDN
)
Figures 4 and 5
5500
ns
Driver Enable from Shutdown to
Output Low
t
DZL
(
SHDN
)
Figures 4 and 5
5500
ns
Time to Shutdown t
SHDN
50 340
700
ns
RECEIVER
t
RPLH
80
Receiver Propagation Delay
t
RPHL
C
L
= 15pF, Figures 6 and 7
80
ns
Receiver Output Skew t
RSKEW
C
L
= 15pF, Figure 7 13 ns
Maximum Data Rate
500
kbps
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