LTC1484 Linear Technology, LTC1484 Datasheet - Page 2

• Manufacturer Part Number: LTC1484
• Description: Low Power RS485 Transceiver with Receiver Fail-Safe
• Manufacturer: Linear Technology

ABSOLUTE
LTC1484
(Note 1)
Supply Voltage (V
Control Input Voltages ................. – 0.3V to (V
Driver Input Voltage ..................... – 0.3V to (V
Driver Output Voltages ................................. – 7V to 10V
Receiver Input Voltages (Driver Disabled) .. –12V to 14V
Receiver Output Voltage ............... – 0.3V to (V
PACKAGE/ORDER
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
Consult factory for Military grade parts.
SYMBOL
V
V
V
V
V
V
I
I
V
2
IN1
IN2
OD1
OD2
OD3
OC
IH
IL
TH
V
|V
OD
OC
|
RO
T
RE
DE
DI
JMAX
PARAMETER
Differential Driver Output Voltage (Unloaded)
Differential Driver Output Voltage (with Load)
Differential Driver Output Voltage
(with Common Mode)
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
Input High Voltage
Input Low Voltage
Input Current
Input Current (A, B)
Differential Input Threshold Voltage for Receiver
8-LEAD PLASTIC MSOP
1
2
3
4
= 125 C,
MS8 PACKAGE
TOP VIEW
CC
W
MAXIMUM
JA
)............................................... 6.5V
= 200 C/ W
8
7
6
5
V
B
A
GND
CC
W W
INFORMATION
U
MS8 PART MARKING
RATINGS
LTC1484CMS8
ORDER PART
W
NUMBER
U
LTDX
A
CC
CC
CC
= 25 C. V
+ 0.3V)
+ 0.3V)
+ 0.3V)
CONDITIONS
I
R = 50 (RS422)
R = 27 (RS485) Figure 1
R = 22 , Figure 1
V
R = 22 , 27 or R = 50 , Figure 1
V
R = 22 , 27 or R = 50 , Figure 1
R = 22 , 27 or R = 50 , Figure 1
DE, DI, RE
DE, DI, RE
DE, DI, RE
DE = 0, V
DE = 0, V
– 7V V
OUT
The
TST
TST
U
= 0
= – 7V to 12V, Figure 2
= – 7V to 12V, Figure 2
CC
CM
denotes the specifications which apply over the full operating
CC
CC
= 5V 5% (Notes 2 and 3) unless otherwise noted.
= 0 or 5V, V
= 0 or 5V, V
Junction Temperature .......................................... 125 C
Operating Temperature Range
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
12V, DE = 0
LTC1484C ......................................... 0 C T
LTC1484I ...................................... – 40 C T
N8 PACKAGE
8-LEAD PDIP
T
T
RO
RE
DE
DI
JMAX
JMAX
IN
IN
1
2
3
4
= 125 C,
= 125 C,
= 12V
= – 7V
TOP VIEW
D
JA
JA
R
8-LEAD PLASTIC SO
= 130 C/ W (N8)
= 135 C/ W (S8)
S8 PACKAGE
8
7
6
5
V
B
A
GND
CC
– 0.20
MIN
1.5
1.5
1.5
2.0
2
TYP
S8 PART MARKING
ORDER PART
LTC1484CN8
LTC1484CS8
LTC1484IN8
LTC1484IS8
NUMBER
– 0.015
1484
1484I
MAX
– 0.8
V
0.2
0.2
0.8
1.0
5
5
5
3
CC
2
A
A
70 C
85 C
UNITS
mA
mA
V
V
V
V
V
V
V
V
V
V
A
V