ISL3179E Datasheet, PDF (11/17 Pages) Intersil Corporation – High ESD Protected, +125°C, 40Mbps 3.3V, Full Fail-Safe, RS-485/RS-422 Transceivers

ISL3179E, ISL3180E
Typical Performance Curves V_CC = 3.3V, T_A = +25°C; Unless Otherwise Specified
90
2.40
80
+85°C ^+25°C
70
+125°C
60
50
40
30
20
10
2.35
R_D = 33Ω
2.30
2.25
2.20
R_D = 54Ω
2.15
2.10
2.05
R_D = 100Ω
2.00
1.95
R_D = 100Ω
R_D = 54Ω
0
0
0.5
1.0
1.5
2.0
2.5
3.0 3.3
DIFFERENTIAL OUTPUT VOLTAGE (V)
FIGURE 8. DRIVER OUTPUT CURRENT vs DIFFERENTIAL
OUTPUT VOLTAGE
1.90
-40
-15
10
35
60
85
TEMPERATURE (°C)
110 125
FIGURE 9. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs
TEMPERATURE
150
Y OR Z = LOW
100
50
0
-50
Y OR Z = HIGH
-100
-7 -6 -4 -2
0
2
4
6
OUTPUT VOLTAGE (V)
8 10 12
FIGURE 10. DRIVER OUTPUT CURRENT vs SHORT CIRCUIT
VOLTAGE
13.0
12.5
12.0
11.5
11.0
10.5
10.0
t_PLH
t_PHL
9.5
9.0
8.5
8.0
-40
-15
10
35
60
85
110 125
TEMPERATURE (°C)
FIGURE 12. DRIVER DIFFERENTIAL PROPAGATION DELAY
vs TEMPERATURE
2.40
DE = V_CC, RE = X OR DE = GND, RE = GND
2.35
2.30
2.25
2.20
2.15
2.10
-40
-15
10
35
60
85
110 125
TEMPERATURE (°C)
FIGURE 11. SUPPLY CURRENT vs TEMPERATURE
0.25
|t_PLH - t_PHL|
0.20
0.15
0.10
0.05
0
-40
-15
10
35
60
85
TEMPERATURE (°C)
FIGURE 13. DRIVER DIFFERENTIAL SKEW vs
TEMPERATURE
110 125
11
FN6365.2
April 22, 2008