ISL8489EIB Intersil, ISL8489EIB Datasheet - Page 9

• Manufacturer Part Number: ISL8489EIB
• Description: TRANSCEIVER RS485/522 ESD 14SOIC
• Manufacturer: Intersil
• Type: Transceiverr

Specifications of ISL8489EIB

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

±15kV HBM. The RS-485 pins are particularly vulnerable to
ESD damage because they typically connect to an exposed
port on the exterior of the finished product. Simply touching
the port pins, or connecting a cable, can cause an ESD
event that might destroy unprotected ICs. These new ESD
structures protect the device whether or not it is powered up,
Typical Performance Curves
-100
-120
160
140
120
100
FIGURE 6. DRIVER OUTPUT CURRENT vs DIFFERENTIAL
FIGURE 8. DRIVER OUTPUT CURRENT vs SHORT CIRCUIT
-20
-40
-60
-80
80
60
40
20
90
80
70
60
50
40
30
20
10
0
0
-7 -6
0
ISL8488E/ISL8489E
OUTPUT VOLTAGE
VOLTAGE
-4
DIFFERENTIAL OUTPUT VOLTAGE (V)
1
ISL8490E/ISL8491E
-2
Y OR Z = LOW
OUTPUT VOLTAGE (V)
0
2
9
2
ISL8488E, ISL8489E, ISL8490E, ISL8491E
4
3
Y OR Z = HIGH
ISL8488E/ISL8489E
ISL8490E/ISL8491E
6
V
CC
= 5V, T
8
4
10
A
= +25°C; Unless Otherwise Specified.
12
5
protect without allowing any latch-up mechanism to activate,
and without degrading the RS-485 common mode range of
-7V to +12V. This built-in ESD protection eliminates the need
for board level protection structures (e.g., transient
suppression diodes), and the associated, undesirable
capacitive load they present.
FIGURE 7. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs
400
350
300
250
200
150
100
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
50
-40
FIGURE 9. SUPPLY CURRENT vs TEMPERATURE
-40
-25
-25
TEMPERATURE
ISL8489E, DE = X, RE = X
0
ISL8490E/ISL8491E, DE = X, RE = X
0
TEMPERATURE (°C)
TEMPERATURE (°C)
ISL8488E
R
DIFF
25
25
= 100Ω
R
50
50
DIFF
= 54Ω
July 26, 2007
75
FN6073.4
75
85
85