ISL3241E Datasheet, PDF (14/16 Pages) Intersil Corporation – QFN Packaged, ±15kV ESD Protected, +2.7V to +3.6V, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply Pin

ISL3241E, ISL3243E
Typical Performance Curves V_CC = 3.3V, V_L = 1.8V, T_A = +25°C
6
4
2
1 TRANSMITTER AT 250kbps
OTHER TRANSMITTERS AT 30kbps
0 R_L = 3kΩ ON ALL TOUTS
-2
-4
+V_OUT
-V_OUT
25
R_L = 3kΩ
20
15
+SLEW
-SLEW
10
-6
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
FIGURE 16. TRANSMITTER OUTPUT VOLTAGE vs LOAD
CAPACITANCE
45
1 TRANSMITTER SWITCHING
40 ^{OTHER TRANSMITTERS STATIC}
R_L = 3kΩ ON ALL TOUTS
35
250kbps
30
120kbps
25
20
20kbps
15
10
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
FIGURE 18. SUPPLY CURRENT vs LOAD CAPACITANCE
WHEN TRANSMITTING DATA
5
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
FIGURE 17. SLEW RATE vs LOAD CAPACITANCE
7
NO LOAD, V_L = V_CC
ALL OUTPUTS STATIC
6
5
4
3
2
1
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SUPPLY VOLTAGE (V)
FIGURE 19. SUPPLY CURRENT vs SUPPLY VOLTAGE
50
NO LOAD
ALL OUTPUTS STATIC
V_CC = 3.3V
40
30
V_L ≤ V_CC
20
V_L > V_CC
10
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
V_L (V)
FIGURE 20. V_L SUPPLY CURRENT vs V_L VOLTAGE
10
9 ^{VOL, VL = 3.3V}
8
V_OL, V_L = 2.5V
V_OH, V_L = 3.3V
7
6
V_OH, V_L = 2.5V
5
4
V_OL, V_L = 1.8V
3
V_OL, V_L = 1.6V
2
V_OH, V_L = 1.8V
1
V_OH, V_L = 1.6V
0
0
0.5
1.0
1.5
2.0
2.5
3.0 3.3
RECEIVER OUTPUT VOLTAGE (V)
FIGURE 21. RECEIVER OUTPUT CURRENT vs RECEIVER
OUTPUT VOLTAGE
14
FN6768.1
May 13, 2010