ISL83491IB-T Intersil, ISL83491IB-T Datasheet - Page 11

• Manufacturer Part Number: ISL83491IB-T
• Description: IC TXRX RS485/422 3.3V LP 14S
• Manufacturer: Intersil
• Type: Transceiverr

Specifications of ISL83491IB-T

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Low Power Shutdown Mode (ISL83483, ISL83485,
ISL83491 Only)
These CMOS transceivers all use a fraction of the power
required by their bipolar counterparts, but the ISL83483,
ISL83485, ISL83491 include a shutdown feature that
reduces the already low quiescent I
They enter shutdown whenever the receiver and driver are
simultaneously disabled (RE = V
Typical Performance Curves
-100
-120
FIGURE 6. DRIVER OUTPUT CURRENT vs DIFFERENTIAL
160
140
120
100
FIGURE 8. DRIVER OUTPUT CURRENT vs SHORT CIRCUIT
-20
-40
-60
-80
80
60
40
20
110
100
0
90
80
70
60
50
40
30
20
10
-7 -6
0
0
OUTPUT VOLTAGE
VOLTAGE
-4
0.5
DIFFERENTIAL OUTPUT VOLTAGE (V)
Y OR Z = LOW
-2
1
OUTPUT VOLTAGE (V)
0
1.5
11
ISL83483, ISL83485, ISL83488, ISL83490, ISL83491
2
CC
Y OR Z = HIGH
CC
2
4
and DE = GND) for a
to a 15nA trickle.
V
6
2.5
CC
= 3.3V, T
8
3
10
A
= 25
3.5
12
o
C, ISL83483 thru ISL83491; Unless Otherwise Specified
period of at least 300ns. Disabling both the driver and the
receiver for less than 80ns guarantees that shutdown is not
entered.
Note that receiver and driver enable times increase when
these devices enable from shutdown. Refer to Notes 5-9, at
the end of the Electrical Specification table, for more
information.
FIGURE 7. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs
800
750
700
650
600
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2
-40
FIGURE 9. SUPPLY CURRENT vs TEMPERATURE
-40
ISL83483/85, DE = RE = GND; ISL83491, DE = X, RE = GND;
-25
-25
TEMPERATURE
ISL83483/85, DE = V
TEMPERATURE (
TEMPERATURE (
0
0
ISL83488/90
R
25
25
DIFF
CC
, RE = X
o
o
= 100Ω
C)
C)
50
50
R
DIFF
= 54Ω
75
75
85
85