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參數(shù)資料
| 型號(hào)： | ISL8491IP |
| 廠(chǎng)商： | INTERSIL CORP |
| 元件分類(lèi)： | 通用總線(xiàn)功能 |
| 英文描述： | 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers |
| 中文描述： | LINE TRANSCEIVER, PDIP14 |
| 封裝： | PLASTIC, MS-001AA, DIP-14 |
| 文件頁(yè)數(shù)： | 9/13頁(yè) |
| 文件大小： | 526K |
| 代理商： | ISL8491IP |
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9
FN6073.3
±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
V
CC
= 5V, T
A
= 25°C; Unless Otherwise Specified
FIGURE 6. DRIVER OUTPUT CURRENT vs DIFFERENTIAL
OUTPUT VOLTAGE
FIGURE 7. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs
TEMPERATURE
FIGURE 8. DRIVER OUTPUT CURRENT vs SHORT CIRCUIT
VOLTAGE
FIGURE 9. SUPPLY CURRENT vs TEMPERATURE
DIFFERENTIAL OUTPUT VOLTAGE (V)
D
0
1
2
3
4
5
0
10
20
30
40
50
60
70
80
90
-40
0
50
85
2
2.2
2.4
2.6
2.8
3
3.2
3.4
3.6
TEMPERATURE (°C)
D
-25
25
75
R
DIFF
= 54
R
DIFF
= 100
OUTPUT VOLTAGE (V)
-7 -6
-4
-2
0
2
4
6
8
10
12
O
-60
-40
-20
0
20
40
60
80
100
120
140
160
-80
-100
-120
Y OR Z = HIGH
Y OR Z = LOW
ISL8491E
ISL8491E
ISL8488E/89E
ISL8488E/89E
-40
0
TEMPERATURE (°C)
50
85
I
C
-25
25
75
50
100
150
200
250
300
350
400
ISL8491E
, DE = X, RE = X
ISL8489E
, DE = X, RE = X
ISL8488E
ISL8488E, ISL8489E, ISL8491E
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