参数资料
型号: LTC1484IN8
厂商: Linear Technology
文件页数: 13/16页
文件大小: 0K
描述: IC TXRX RS485 LOWPWR 8-DIP
标准包装: 50
类型: 收发器
驱动器/接收器数: 1/1
规程: RS422,RS485
电源电压: 4.75 V ~ 5.25 V
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
6
LTC1484
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Receiver Short-Circuit Current vs
Temperature
Receiver Propagation Delay vs
Temperature
Receiver Skew vs Temperature
Receiver Propagation Delay vs
Supply Voltage
Shutdown Supply Current vs
Temperature
Shutdown Supply Current vs
Supply Voltage
Supply Current vs Temperature
Supply Current vs Supply Voltage
Logic Input Threshold vs
Temperature
TEMPERATURE (
°C)
–55 –35 –15
5
25
45
65
85 105 125
RECEIVER
SHORT-CIRCUIT
CURRENT
(mA)
1484 G13
100
90
80
70
60
50
40
30
20
10
0
VCC = 5.25V
OUTPUT LOW
SHORT TO VCC
OUTPUT HIGH
SHORT TO GROUND
TEMPERATURE (
°C)
–55 –35 –15
5
25
45
65
85 105 125
RECEIVER
PROPAGATION
DELAY
(ns)
1484 G14
200
180
160
140
120
100
80
60
40
20
0
VCC = 5V
tPLH
tPHL
TEMPERATURE (
°C)
–55 –35 –15
5
25
45
65
85 105 125
RECEIVER
SKEW
(ns)
1484 G15
30
25
20
15
10
5
0
VCC = 5V
SUPPLY VOLTAGE (V)
4.5
4.75
5
5.25
5.5
RECEIVER
PROPAGATION
DELAY
(ns)
1484 G16
200
180
160
140
120
100
TA = 25°C
tPLH
tPHL
TEMPERATURE (
°C)
–55 –35 –15
5
25
45
65
85 105 125
SHUTDOWN
SUPPLY
CURRENT
(
A)
1484 G17
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
VCC = 5V
DE = DI = 0
RE = 5V
SUPPLY VOLTAGE (V)
4.5 4.6 4.7 4.8 4.9
5
5.1 5.2 5.3 5.4 5.5
SHUTDOWN
SUPPLY
CURRENT
(
A)
1484 G18
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
TA = 25°C
TEMPERATURE (
°C)
–55 –30 –5
20
45
70
95 120 145 170
SUPPLY
CURRENT
(
A)
1484 G19
1000
900
800
700
600
500
400
300
200
100
0
VCC = 5V
DRIVER ENABLED
NO LOAD
THERMAL SHUTDOWN
WITH DRIVER
ENABLED
DRIVER DISABLED
SUPPLY VOLTAGE (V)
4.5 4.6 4.7 4.8 4.9
5
5.1 5.2 5.3 5.4 5.5
SUPPLY
CURRENT
(
A)
1484 G20
700
600
500
400
300
200
100
0
TA = 25°C
DRIVER ENABLED
NO LOAD
DRIVER DISABLED
TEMPERATURE (
°C)
–55
LOGIC
INPUT
THRESHOLD
VOLTAGE
(V)
1484 G21
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1.55
1.50
VCC = 5.25V
VCC = 4.75V
VCC = 5V
–35 –15
5
25
45
65
85 105 125
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