LTC1387 Linear Technology, LTC1387 Datasheet - Page 2

• Manufacturer Part Number: LTC1387
• Description: Single 5V RS232/RS485 Multiprotocol Transceiver
• Manufacturer: Linear Technology

DC ELECTRICAL CHARACTERISTICS
A
LTC1387
(Note 1)
Supply Voltage (V
Input Voltage
Output Voltage
Short-Circuit Duration
Operating Temperature Range
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................ 300 C
T
SYMBOL
RS485 Driver (485/232 = High, ON = DXEN = High)
V
V
V
I
I
RS232 Driver (485/232 = Low, ON = DXEN = High)
V
I
Driver Inputs and Control Inputs
V
V
I
2
OSD
OZD
OSD
IN
A
OD1
OD2
OC
O
IH
IL
V
BSOLUTE
OD
V
= 25 C, V
Drivers ................................... – 0.3V to (V
Receivers ............................................. – 25V to 25V
485/232, ON, DXEN
RXEN, SLEW ........................... – 0.3V to (V
Drivers ................................................. – 18V to 18V
Receivers ............................... – 0.3V to (V
Output ........................................................ Indefinite
V
LTC1387C .............................................. 0 C to 70 C
LTC1387I ........................................... – 40 C to 85 C
OC
DD
, V
PARAMETER
Differential Driver Output Voltage (Unloaded)
Differential Driver Output Voltage (With Load)
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
Three-State Output Current (Y, Z)
Output Voltage Swing
Output Short-Circuit Current
Input High Voltage
Input Low Voltage
Input Current
EE
CC
, C1
= 5V, C1 = C2 = C3 = C4 = 0.1 F (Notes 2, 3), unless otherwise noted.
+
, C1
CC
W
) ............................................. 6.5V
–
A
, C2
XI
+
, C2
W
U
–
.......................... 30 sec
W
R
A
TI
U
CC
CC
CC
G
+ 0.3V)
+ 0.3V)
+ 0.3V)
I
Figure 1, R = 50 (RS422)
Figure 1, R = 27 (RS485)
Figure 1, R = 27 or R = 50
Figure 1, R = 27 or R = 50
Figure 1, R = 27 or R = 50
V
V
– 7V V
Figure 4, R
Figure 4, R
V
D
D
D
SLEW (Note 5)
O
S
O
O
O
Y
Y
Y
CONDITIONS
= 0
, D
, D
, D
= – 7V, 12V; V
= – 7V, 12V; V
= 0V
Z
Z
Z
, DXEN, RXEN, ON, 485/232, SLEW
, DXEN, RXEN, ON, 485/232, SLEW
, DXEN, RXEN, ON, 485/232
O
L
L
12V
= 3k, Positive
= 3k, Negative
Consult factory for Military grade parts.
PACKAGE/ORDER I FOR ATIO
O
O
20-LEAD PLASTIC SSOP
= High
= Low (Note 4)
485/232
DXEN
GND
G PACKAGE
V
C1
C1
DD
A
B
Y
Z
+
–
T
T
JMAX
JMAX
10
1
2
3
4
5
6
7
8
9
= 125 C,
= 125 C,
TOP VIEW
JA
JA
= 75 C/W (SW)
= 120 C/W (G)
20-LEAD PLASTIC SO
SW PACKAGE
20
19
18
17
16
15
14
13
12
11
MIN
2.0
1.5
– 5
35
10
2
5
C2
C2
V
R
R
D
D
ON
RXEN
V
CC
EE
A
B
Y
Z
U
+
–
/SLEW
– 6.5
TYP
6.5
0.1
5
17
5
LTC1387CG
LTC1387CSW
LTC1387IG
LTC1387ISW
ORDER PART
W
NUMBER
MAX
250
250
500
0.2
0.2
0.8
6
6
6
3
60
10
15
UNITS
U
mA
mA
mA
V
V
V
V
V
V
A
V
V
V
V
A
A