參數(shù)資料
型號(hào)： LTC1387I
廠商： Linear Technology Corporation
英文描述： Single 5V RS232/RS485 Multiprotocol Transceiver
中文描述： 單5V RS232/RS485轉(zhuǎn)換多協(xié)議收發(fā)器
文件頁(yè)數(shù)： 2/12頁(yè)
文件大?。?/td> 167K
代理商： LTC1387I
2
LTC 1387
A
(Note 1)
Supply Voltage (V
CC
) ............................................. 6.5V
Input Voltage
Drivers ................................... –0.3V to (V
CC
+ 0.3V)
Receivers ............................................. –25V to 25V
485/232, ON, DXEN
RXEN, SLEW........................... –0.3V to (V
CC
+ 0.3V)
Output Voltage
Drivers ................................................. –18V to 18V
Receivers ............................... –0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration
Output........................................................ Indefinite
V
DD
, V
EE
, C1
+
, C1
–
, C2
+
, C2
–
.......................... 30 sec
Operating Temperature Range
LTC1387C.............................................. 0
°
C to 70
°
C
LTC1387I ...........................................–40
°
C to 85
°
C
Storage Temperature Range................ –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)................ 300
°
C
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
ORDER PART
NUMBER
W
U
U
PACKAGE/ORDER I FOR ATIO
Consult factory for Military grade parts.
T
JMAX
= 125
°
C,
θ
JA
= 120
°
C/W (G)
T
JMAX
= 125
°
C,
θ
JA
= 75
°
C/W (SW)
1
2
3
4
5
6
7
8
9
10
TOP VIEW
SW
20-LEAD
G PACKAGE
20-LEAD PLASTIC SSOP
20
19
18
17
16
15
14
13
12
11
C1
+
C1
–
V
DD
A
B
Y
Z
485/232
DXEN
GND
C2
+
C2
–
V
CC
R
A
R
B
D
Y
D
Z
/SLEW
ON
RXEN
V
EE
DC ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C, V
CC
= 5V, C1 = C2 = C3 = C4 = 0.1
μ
F (Notes 2, 3), unless otherwise noted.
LTC1387CG
LTC1387CSW
LTC1387IG
LTC1387ISW
SYMBOL
RS485 Driver (485/232 = High, ON = DXEN = High)
V
OD1
Differential Driver Output Voltage (Unloaded)
V
OD2
Differential Driver Output Voltage (With Load)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
I
O
= 0
Figure 1, R = 50
(RS422)
Figure 1, R = 27
(RS485)
Figure 1, R = 27
or R = 50
G
6
6
6
V
V
V
V
G
G
2.0
1.5
V
OD
Change in Magnitude of Driver Differential
Output Voltage for Complementary Output States
Driver Common Mode Output Voltage
Change in Magnitude of Driver Common Mode
Output Voltage for Complementary Output States
Driver Short-Circuit Current
G
0.2
V
OC
V
OC
Figure 1, R = 27
or R = 50
Figure 1, R = 27
or R = 50
G
3
V
V
G
0.2
I
OSD
V
O
= –7V, 12V; V
O
= High
V
O
= –7V, 12V; V
O
= Low (Note 4)
–7V
≤
V
O
≤
12V
G
G
35
10
250
250
500
mA
mA
μ
A
I
OZD
RS232 Driver (485/232 = Low, ON = DXEN = High)
V
O
Output Voltage Swing
Three-State Output Current (Y, Z)
±
5
Figure 4, R
L
= 3k, Positive
Figure 4, R
L
= 3k, Negative
V
O
= 0V
G
G
5
–5
6.5
–6.5
±
17
V
V
I
OSD
Driver Inputs and Control Inputs
V
IH
Input High Voltage
V
IL
Input Low Voltage
I
IN
Input Current
Output Short-Circuit Current
G
±
60
mA
D
Y
, D
Z
, DXEN, RXEN, ON, 485/232, SLEW
D
Y
, D
Z
, DXEN, RXEN, ON, 485/232, SLEW
D
Y
, D
Z
, DXEN, RXEN, ON, 485/232
SLEW (Note 5)
G
2
V
V
G
0.8
±
10
15
G
G
±
0.1
5
μ
A
μ
A
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