ISO1176T_14 Datasheet, PDF (19/28 Pages) Texas Instruments – Isolated Profibus RS-485 Transceiver with Integrated Transformer Driver

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ISO1176T
SLLSE28F – OCTOBER 2010 – REVISED OCTOBER 2012
110
15 pF Load
100 _{TA = 25°C}
90
TYPICAL CHARACTERISTICS (continued)
0.7
V_CC = 4.75 V
0.6
80
0.5
70
0.4
V_CC = 5.25 V
60
V_CC = 5 V
50
0.3
40
30
0.2
20
10
0
0
1
2
3
4
5
V_O - Output Voltage - V
Figure 27. RECEIVER LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
0.1
R_L = 110 Ω,
C_L = 50 pF
0
−40
−15
10
35
60
85
T_A − Free-Air Temperature − °C
Figure 28. DRIVER ENABLE SKEW
vs
FREE-AIR TEMPERATURE
28
t_PHL (V_CC1 = 3.3 V)
26
t_PLH (V_CC1 = 3.3 V)
24
22
t_PHL (V_CC1 = 5 V)
20
t_PHL (V_CC1 = 5 V)
18
-40
-15
10
35
60
85
T_A - Free-Air Temperature - °C
Figure 29. DRIVER PROPAGATION DELAY
vs
FREE-AIR TEMPERATURE
58
C_L = 15 pH,
56 ^VCC2 ^{= 5 V}
t_PHL (V_CC1 = 3.3 V)
54 _{tPLH (VCC1 = 3.3 V)}
52
50
48
t_PHL (V_CC1 = 5 V)
46
t_PLH (V_CC1 = 5 V)
44
42
-40
-15
10
35
60
85
T_A - Free-Air Temperature - °C
Figure 30. RECEIVER PROPAGATION DELAY
vs
FREE-AIR TEMPERATURE
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