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ISL8491EIBZ View Datasheet(PDF) - Intersil

Part Name
Description
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ISL8491EIBZ
Intersil
Intersil Intersil
ISL8491EIBZ Datasheet PDF : 13 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ISL8488E, ISL8489E, ISL8490E, ISL8491E
±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,
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.
Typical Performance Curves VCC = 5V, TA = +25°C; Unless Otherwise Specified.
90
3.6
80
3.4
70
3.2
RDIFF = 100Ω
60
3.0
50
2.8
40
2.6
30
20
2.4
RDIFF = 54Ω
10
2.2
0
0
1
2
3
4
5
DIFFERENTIAL OUTPUT VOLTAGE (V)
FIGURE 6. DRIVER OUTPUT CURRENT vs DIFFERENTIAL
OUTPUT VOLTAGE
2.0
-40 -25
0
25
50
TEMPERATURE (°C)
75 85
FIGURE 7. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs
TEMPERATURE
160
140
ISL8490E/ISL8491E
120
Y OR Z = LOW
100
80
ISL8488E/ISL8489E
60
40
20
0
-20
Y OR Z = HIGH
-40
-60
ISL8490E/ISL8491E
-80 ISL8488E/ISL8489E
-100
-120
-7 -6 -4 -2 0
2
4
6
OUTPUT VOLTAGE (V)
8 10 12
FIGURE 8. DRIVER OUTPUT CURRENT vs SHORT CIRCUIT
VOLTAGE
400
350
ISL8490E/ISL8491E, DE = X, RE = X
300
250
200
150
ISL8489E, DE = X, RE = X
100
ISL8488E
50
-40 -25
0
25
50
TEMPERATURE (°C)
75 85
FIGURE 9. SUPPLY CURRENT vs TEMPERATURE
9
FN6073.4
July 26, 2007
 

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