ISL4238E Intersil Corporation, ISL4238E Datasheet - Page 16

• Manufacturer Part Number: ISL4238E
• Description: QFN Packaged, 15kV Esd Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps/ 1Mbps, RS-232 Transceivers With Enhanced Automatic Powerdown
• Manufacturer: Intersil Corporation

Typical Performance Curves
FIGURE 21. ISL4244E SUPPLY CURRENT vs LOAD
FIGURE 25. SUPPLY CURRENT vs SUPPLY VOLTAGE
25
20
15
10
3.5
3.0
2.5
2.0
1.5
1.0
0.5
5
45
40
35
30
25
20
15
10
0
0
2.5
FIGURE 23. ISL4238E/44E SLEW RATE vs LOAD
0
1 TRANSMITTER AT INDICATED RATE
CAPACITANCE WHEN TRANSMITTING DATA
3.0
+SLEW
1000
1000
-SLEW
3.5
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
CAPACITANCE
SUPPLY VOLTAGE (V)
2000
2000
4.0
16
4.5
3000
3000
250kbps
NO LOAD
ALL OUTPUTS STATIC
V
5.0
ISL4238E, ISL4244E, ISL4245E
CC
120kbps
20kbps
4000
4000
= 3.3V, T
5.5
A
5000
5000
6.0
= 25
o
C (Continued)
Die Characteristics
SUBSTRATE POTENTIAL (POWERED UP)
TRANSISTOR COUNT
PROCESS
Si Gate CMOS
FIGURE 24. ISL4245E SLEW RATE vs LOAD CAPACITANCE
FIGURE 22. ISL4245E SUPPLY CURRENT vs LOAD
GND
ISL4238E: 1235
ISL4244E: 1109
ISL4245E: 1109
110
90
70
50
30
10
90
80
70
60
50
40
30
20
10
0
0
0
-SLEW
1 TRANSMITTER AT INDICATED RATE
+SLEW
CAPACITANCE WHEN TRANSMITTING DATA
1000
1000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
2000
2000
3000
3000
250kbps
120kbps
1Mbps
4000
4000
5000
5000