ISL3332_14 Datasheet, PDF (20/26 Pages) Intersil Corporation – 3.3V, ±15kV ESD Protected, Two Port, Dual Protocol (RS-232/RS-485) Transceivers

ISL3332, ISL3333
Typical Performance Curves V_CC = V_L = 3.3V, T_A = +25°C; Unless Otherwise Specified
30
25
V_OH, +25 °C
20 _{VOH, +85 °C}
15
V_OL, +25 °C
V_OL, +85 °C
3.5
3.0
2.5
2.0
I_OH = -0.5mA
1.5 ^IOH ^{= -1mA}
10
1.0
I_OH = -6mA
5.0
0
0
1
2
3 3.3
RECEIVER OUTPUT VOLTAGE (V)
FIGURE 14. RECEIVER OUTPUT CURRENT vs RECEIVER
OUTPUT VOLTAGE
90
80
70
60
50
40
30
20
10
0
0
0.5
1
1.5
2
2.5
3
3.5
DIFFERENTIAL OUTPUT VOLTAGE (V)
FIGURE 16. RS-485, DRIVER OUTPUT CURRENT vs
DIFFERENTIAL OUTPUT VOLTAGE
0.5
I_OH = -2mA
0
1
1.5
2.0
2.5
3.0 3.3
V_L (V)
FIGURE 15. RECEIVER HIGH OUTPUT VOLTAGE vs LOGIC
SUPPLY VOLTAGE (V_L) (QFN ONLY)
2.30
2.25
2.20
R_DIFF = 100Ω
2.15
2.10
2.05
2.00
R_DIFF = 54Ω
1.95
1.9
-40 -25
0
25
50
TEMPERATURE (°C)
75 85
FIGURE 17. RS-485, DRIVER DIFFERENTIAL OUTPUT
VOLTAGE vs TEMPERATURE
250
+85 °C
+25 °C
200
150
-40 °C
100
50
Y OR Z = LOW
0
-50
+85 °C
+25 °C
Y OR Z = HIGH
-100
-40 °C
-150
-7 -6 -4 -2
0
2
4
6
OUTPUT VOLTAGE (V)
8 10 12
FIGURE 18. RS-485, DRIVER OUTPUT CURRENT vs SHORT
CIRCUIT VOLTAGE
4.5
RS-232, RXEN = X, DEN = V_L (IF QFN)
4.0
3.5
RS-232, DEN = GND, RXEN = X (QFN ONLY)
3.0
2.5
RS-485, HALF DUPLEX, DE = V_CC, RXEN = X
2.0
1.5
RS-485, DE = GND, RXEN = X
1-40
RS-485, FULL DUPLEX, DE = V_CC, RXEN = X
-25
0
25
50
75 85
TEMPERATURE (°C)
FIGURE 19. SUPPLY CURRENT vs TEMPERATURE
20
FN6362.0
May 27, 2008