isl81387 Intersil Corporation, isl81387 Datasheet - Page 19

• Manufacturer Part Number: isl81387
• Description: ?15kv Esd Protected, 5v, Dual Protocol Rs-232/rs-485 Transceivers
• Manufacturer: Intersil Corporation

Typical Performance Curves
FIGURE 15. RS-485, DRIVER OUTPUT CURRENT vs
FIGURE 17. RS-485, DRIVER OUTPUT CURRENT vs SHORT
FIGURE 19. RS-232, V
100n
100µ
10m
-100
-150
10µ
10n
100
150
100
1m
-50
1n
90
80
70
60
50
40
30
20
10
1µ
50
0
0
0
-7 -6
2
RS-232, SPB, RXEN = V
RS-485, SLEW, SPB, RXEN = GND
RS-232, RXEN = GND, SPB = V
RS-485, SLEW, SPB, RXEN = V
DEN, RXEN, ON = GND
NO LOAD
V
IN
DIFFERENTIAL OUTPUT VOLTAGE
CIRCUIT VOLTAGE
(QFN ONLY)
+85°C
= V
DIFFERENTIAL OUTPUT VOLTAGE (V)
-4
-40°C
L
1
or GND
Y OR Z = LOW
-2
3
L
OUTPUT VOLTAGE (V)
SUPPLY CURRENT vs V
0
2
19
+25°C
L
V
2
OR
L
(V)
4
L
4
L
V
3
L
FULL TEMP RANGE
≤ V
Y OR Z = HIGH
6
CC
V
CC
5
8
= V
4
L
V
L
VOLTAGE
L
> V
10
ISL81387, ISL41387
= 5V, T
CC
12
5
A
6
= +25°C; Unless Otherwise Specified. (Continued)
FIGURE 16. RS-485, DRIVER DIFFERENTIAL OUTPUT
FIGURE 20. V
FIGURE 18. SUPPLY CURRENT vs TEMPERATURE
500
400
300
200
100
3.6
3.5
3.4
3.3
3.2
3.1
3.0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0
2.0
-40
-40
RS-485, HALF DUPLEX, DEN = V
RS-485, FULL DUPLEX, DEN = V
VOLTAGE vs TEMPERATURE
VOLTAGE (QFN ONLY)
RS-232, RXEN, RXEN = X, ON = V
-25
-25
RS-485, DEN = GND, RXEN, RXEN = X, ON = V
CC
RS-232/RS-485 I
SPB = V
RS-232 I
2.5
RS-232, RXEN, RXEN, ON = X, DEN = V
AND V
L
L
TEMPERATURE (°C)
TEMPERATURE (°C)
3.0
0
DEN, RXEN, DY, DZ/SLEW, ON = GND
0
L
SHDN SUPPLY CURRENTS vs V
CC
R
V
DIFF
L
3.5
(V)
25
25
= 100Ω
CC
CC
R
4.0
DIFF
, RXEN, RXEN, ON = X
, RXEN, RXEN, ON = X
NO LOAD
V
RXEN = V
CC
50
50
IN
= 54Ω
, DEN = GND
= V
SPB = GND
November 21, 2007
RS-485 I
4.5
L
CC
OR GND
L
75
75
CC
FN6201.3
L
5.0
85
85
L