參數(shù)資料
型號： LTC485I
廠商： Linear Technology Corporation
英文描述： Low Power RS485 Interface Transceiver
中文描述： 低功率485接口收發(fā)器
文件頁數(shù)： 2/12頁
文件大?。?/td> 327K
代理商： LTC485I
2
LTC485
A
(Note 1)
Supply Voltage ....................................................... 12V
Control Input Voltages................... –0.5V to V
CC
+ 0.5V
Driver Input Voltage....................... –0.5V to V
CC
+ 0.5V
Driver Output Voltage ...........................................
±
14V
Receiver Input Voltage..........................................
±
14V
Receiver Output Voltages .............. –0.5V to V
CC
+ 0.5V
Operating Temperature Range
LTC485I...................................... –40
°
C
≤
T
A
≤
85
°
C
LTC485C.......................................... 0
°
C
≤
T
A
≤
70
°
C
LTC485M.................................. –55
°
C
≤
T
A
≤
125
°
C
Lead Temperature (Soldering, 10 sec)................. 300
°
C
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
U
PACKAGE/ORDER IU
ORDER PART
NUMBER
LTC485CJ8
LTC485CN8
LTC485CS8
LTC485IN8
LTC485IS8
LTC485MJ8
S8 PART MARKING
485
485I
1
2
3
4
8
7
6
5
TOP VIEW
V
CC
B
A
GND
N8
8-LEAD PLASTIC DIP
S8 PACKAGE
8-LEAD PLASTIC SOIC
J8 PACKAGE
8-LEAD CERAMIC DIP
R
D
RO
RE
DE
DI
T
JMAX
= 155
°
C,
θ
JA
= 100
°
C/W (J)
T
JMAX
= 100
°
C,
θ
JA
= 130
°
C/W (N)
T
JMAX
= 100
°
C,
θ
JA
= 170
°
C/W (S)
SYMBOL
V
OD1
V
OD2
PARAMETER
Differential Driver Output Voltage (Unloaded)
Differential Driver Output Voltage (with Load)
CONDITIONS
I
O
= 0
R = 50
(RS422)
R = 27
(RS485), Figure 1
R = 27
or R = 50
, Figure 1
MIN
TYP
MAX
5
UNITS
G
V
V
V
V
G
G
2
1.5
5
V
OD
Change in Magnitude of Driver
DifferentialOutput Voltage for
Complementary States
Driver Common-Mode Output Voltage
Change in Magnitude of Driver
Common-Mode Output Voltage
for Complementary States
Input High Voltage
Input Low Voltage
Input Current
Input Current (A, B)
G
0.2
V
OC
V
OC
R = 27
or R = 50
, Figure 1
R = 27
or R = 50
, Figure 1
G
3
V
V
G
0.2
V
IH
V
IL
I
IN1
I
IN2
DE, DI, RE
DE, DI, RE
DE, DI, RE
DE = 0, V
CC
= 0V
or 5.25V
G
2
V
V
G
0.8
±
2
±
1
–0.8
0.2
G
μ
A
mA
mA
V
IN
= 12V
V
IN
= –7V
G
G
V
TH
Differential Input Threshold Voltage
for Receiver
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Outpu Low Voltage
Three-State (High Impedance) Output
Current at Receiver
Receiver Input Resistance
Supply Current
–7V
≤
V
CM
≤
12V
G
–0.2
V
V
TH
V
OH
V
OL
I
OZR
V
CM
= 0V
I
O
= –4mA, V
ID
= 200mV
I
O
= 4mA, V
ID
= –200mV
V
CC
= Max, 0.4V
≤
V
O
≤
2.4V
G
70
mV
G
3.5
V
V
G
0.4
±
1
G
μ
A
R
IN
I
CC
–7V
≤
V
CM
≤
12V
No Load, Pins 2,
3, 4 = 0V or 5V
G
12
k
μ
A
μ
A
mA
mA
mA
Outputs Enabled
Outputs Disabled
G
500
300
100
100
900
500
250
250
85
G
I
OSD1
I
OSD2
I
OSR
Driver Short-Circuit Current, V
OUT
= HIGH
Driver Short-Circuit Current, V
OUT
= LOW
Receiver Short-Circuit Current
V
O
= –7V
V
O
= 10V
0V
≤
V
O
≤
V
CC
G
35
35
7
G
G
V
CC
= 5V
±
5%, unless otherwise noted. (Notes 2 and 3)
ELECTRICAL C
HARA TERISTICS
相關PDF資料
PDF描述
LTC485IS8 Low Power RS485 Interface Transceiver
LTC485M Low Power RS485 Interface Transceiver
LTC485MJ8 Low Power RS485 Interface Transceiver
LTC486CSW Quad Low Power RS485 Driver
LTC486ISW Quad Low Power RS485 Driver
相關代理商/技術參數(shù)
參數(shù)描述
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