ISL3293E Datasheet, PDF (12/17 Pages) Intersil Corporation – ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23/TDFN Packaged, Low Power, RS-485/RS-422 Transmitters

ISL3293E, ISL3294E, ISL3295E, ISL3296E, ISL3297E, ISL3298E
High Temperature Operation
Due to power dissipation and instantaneous output short
circuit current levels at V_CC = 5V, these transmitters may not
be operated at +125°C with V_CC > 3.6V.
At V_CC = 3.6V, even the SOT-23 versions may be operated
at +125°C, while driving a 100’, double terminated, CAT 5
cable at 20Mbps, without triggering the thermal SHDN
circuit.
Low Power Shutdown Mode
These BiCMOS transmitters all use a fraction of the power
required by their bipolar counterparts, but they also include a
shutdown feature that reduces the already low quiescent I_CC
to a 1µA trickle. These devices enter shutdown whenever
the driver disables (DE = GND).
Typical Performance Curves V_CC = V_L = 3.3V, T_A = +25°C; Unless Otherwise Specified
110
2.4
100
90 ^+85°C
80
70
+125°C
60
+25°C
2.3
2.2
R_DIFF = 100Ω
2.1
2.0
50
1.9
R_DIFF = 54Ω
40
1.8
30
20
1.7
10
0
+25°C
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
DIFFERENTIAL OUTPUT VOLTAGE (V)
FIGURE 6. DRIVER OUTPUT CURRENT vs DIFFERENTIAL
OUTPUT VOLTAGE
1.6
1.5
-40
-15
10
35
60
85
TEMPERATURE (°C)
110 125
FIGURE 7. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs
TEMPERATURE
100
90
80
70
60
50
40
30
20
10
DE = V_CC = V_L
0
-40
-15
10
35
60
85
110 125
TEMPERATURE (°C)
FIGURE 8. SUPPLY CURRENT vs TEMPERATURE
40
35
V_L = 3.3V
30
V_CC = 3.3V
25
20
15
V_L = 2.5V
10
5
V_L ≤ 2V
0
0
1
2
3
4
5
6
7 7.5
DI VOLTAGE (V)
FIGURE 9. V_L SUPPLY CURRENT vs LOGIC PIN VOLTAGE
12
FN6544.0
September 19, 2007