參數(shù)資料
型號: HWD490
廠商: Electronic Theatre Controls, Inc.
元件分類: RS-485
英文描述: Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers
中文描述: 低功耗,限擺率限制RS-485/RS-422收發(fā)器
文件頁數(shù): 5/20頁
文件大?。?/td> 502K
代理商: HWD490
Low-Power, S lew-Rate-Limited
RS -485/RS -422 Transc eivers
30
0
0
2.5
OUTPUT CURRENT vs.
RECEIVER OUTPUT LOW VOLTAGE
5
25
OUTPUT LOW VOLTAGE (V)
O
1.5
15
10
0.5
1.0
2.0
20
35
40
45
0.9
0.1
-50
-25
25
75
RECEIVER OUTPUT LOW VOLTAGE vs.
TEMPERATURE
0.3
0.7
TEMPERATURE (
°
C)
O
0
50
0.5
0.8
0.2
0.6
0.4
0
100 125
I
RO
= 8mA
-20
-4
1.5
2.0
3.0
5.0
OUTPUT CURRENT vs.
RECEIVER OUTPUT HIGH VOLTAGE
-8
-16
OUTPUT HIGH VOLTAGE (V)
O
2.5
4.0
-12
-18
-6
-14
-10
-2
0
3.5
4.5
4.8
3.2
-50
-25
25
75
RECEIVER OUTPUT HIGH VOLTAGE vs.
TEMPERATURE
3.6
4.4
TEMPERATURE (
°
C)
O
0
50
4.0
4.6
3.4
4.2
3.8
3.0
100 125
I
RO
= 8mA
90
0
0
1.0
3.0
4.5
DRIVER OUTPUT CURRENT vs.
DIFFERENTIAL OUTPUT VOLTAGE
10
70
DIFFERENTIAL OUTPUT VOLTAGE (V)
O
2.0
4.0
50
30
80
60
40
20
0.5
1.5
2.5
3.5
2.3
1.5
-50
-25
25
125
DRIVER DIFFERENTIAL OUTPUT VOLTAGE
vs. TEMPERATURE
1.7
2.1
TEMPERATURE (
°
C)
D
0
75
1.9
2.2
1.6
2.0
1.8
100
50
2.4
R = 54
__________________________________________Typic al Operating Charac teristic s
(V
CC
= 5V, T
A
= +25°C, unless otherwise noted.)
NOTES FOR ELECTRICAL/SWITCHING CHARACTERISTICS
Note 1:
All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device
ground unless otherwise specified.
Note 2:
All typical specifications are given for V
CC
= 5V and T
A
= +25°C.
Note 3:
Supply current specification is valid for loaded transmitters when DE = 0V.
Note 4:
Applies to peak current. See
Typical Operating Characteristics.
Note 5:
The HWD481/HWD483/HWD487 are put into shutdown by bringing
RE
high and DE low. If the inputs are in this state for less
than 50ns, the parts are guaranteed not to enter shutdown. If the inputs are in this state for at least 600ns, the parts are
guaranteed to have entered shutdown. See
Low-Power Shutdown Mode
section.
5
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