ISL31498EIUZ Intersil, ISL31498EIUZ Datasheet - Page 16

• Manufacturer Part Number: ISL31498EIUZ
• Description: IC TXRX RS485 FAULT PROT 8MSOP
• Manufacturer: Intersil
• Type: Transceiverr

Specifications of ISL31498EIUZ

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

allowing the die to cool. The drivers automatically
re-enable after the die temperature drops about +15°C.
If the contention persists, the thermal
shutdown/re-enable cycle repeats until the fault is
cleared. Receivers stay operational during thermal
shutdown.
Low Power Shutdown Mode
These CMOS transceivers all use a fraction of the power
required by competitive devices, but they also include a
shutdown feature that reduces the already low quiescent
Typical Performance Curves
FIGURE 8. DRIVER OUTPUT CURRENT vs
FIGURE 10. SUPPLY CURRENT vs TEMPERATURE
90
80
70
60
50
40
30
20
10
2.45
2.40
2.35
2.30
2.25
2.20
2.15
2.10
2.05
2.00
0
ISL31490E, ISL31491E, ISL31492E, ISL31493E, ISL31495E, ISL31496E,
-40
0
+85°C
DIFFERENTIAL OUTPUT VOLTAGE
+25°C
-25
DIFFERENTIAL OUTPUT VOLTAGE (V)
R
D
1
= 20Ω
DE = V
TEMPERATURE (°C)
0
CC
16
DE = GND, RE = GND
2
, RE = X
25
R
D
3
= 30Ω
50
R
D
R
4
D
= 54Ω
= 100Ω
75
V
CC
85
5
= 5V, T
I
whenever the receiver and driver are simultaneously
disabled (RE = V
least 600ns. Disabling both the driver and the receiver
for less than 60ns guarantees that the transceiver will
not enter shutdown.
Note that receiver and driver enable times increase when
the transceiver enables from shutdown. Refer to
Notes 13, 14, 15, 16 and 17, at the end of the “Electrical
Specification” table on page 11, for more information.
FIGURE 11. RECEIVER OUTPUT CURRENT vs RECEIVER
CC
A
FIGURE 9. DRIVER DIFFERENTIAL OUTPUT VOLTAGE
= +25°C; Unless Otherwise Specified.
to a 10μA trickle. These devices enter shutdown
-10
-20
-30
70
60
50
40
30
20
10
3.6
3.4
3.2
2.8
2.6
2.4
2.2
0
3
-40
0
V
OH
vs TEMPERATURE
OUTPUT VOLTAGE
-25
, +85°C
RECEIVER OUTPUT VOLTAGE (V)
CC
1
and DE = GND) for a period of at
V
TEMPERATURE (°C)
0
OL
, +25°C
2
R
D
V
= 100Ω
25
OH
, +25°C
3
R
D
50
= 54Ω
V
OL
4
, +85°C
June 17, 2010
75
FN7637.0
85
5