参数资料
型号: LTC1487CS8#TRPBF
厂商: Linear Technology
文件页数: 2/8页
文件大小: 0K
描述: IC TXRX RS485 LOW EMI LOPWR8SOIC
标准包装: 2,500
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: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
2
LTC1487
sn1487 1487fs
A
U
G
W
A
W
U
W
A
R
BSOLUTEXI
TI
S
WU
U
PACKAGE/ORDER I FOR ATIO
(Note 1)
Supply Voltage (VCC) .............................................. 12V
Control Input Voltage ..................... – 0.5V to VCC + 0.5V
Driver Input Voltage ....................... – 0.5V to VCC + 0.5V
Driver Output Voltage ...........................................
±14V
Receiver Input Voltage ..........................................
±14V
Receiver Output Voltage ................ – 0.5V to VCC + 0.5V
Operating Temperature Range ............. 0
°C ≤ TA ≤ 70°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300
°C
ORDER PART
NUMBER
S8 PART MARKING
Consult factory for Industrial and Military grade parts.
ELECTRICAL C
C
HARA TERISTICS 0°C ≤ T
A ≤ 70°C, VCC = 5V (Notes 2, 3) unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOD1
Differential Driver Output Voltage (Unloaded)
IO = 0
q
5V
VOD2
Differential Driver Output Voltage (with Load)
R = 50
(RS422)
q
2.0
V
R = 27
(RS485), Figure 1
q
1.5
5
V
VOD
Change in Magnitude of Driver Differential Output
R = 27
or R = 50, Figure 1
q
0.2
V
Voltage for Complementary Output States
VOC
Driver Common-Mode Output Voltage
R = 27
or R = 50, Figure 1
q
3V
VOC
Change in Magnitude of Driver Common-Mode
R = 27
or R = 50, Figure 1
q
0.2
V
Output Voltage for Complementary Output States
VIH
Input High Voltage
DE, DI, RE
q
2V
VIL
Input Low Voltage
DE, DI, RE
q
0.8
V
IIN1
Input Current
DE, DI, RE
q
±2
A
IIN2
Input Current (A, B)
DE = 0, VCC = 0V or 5.25V, VIN = 12V
q
0.30
mA
DE = 0, VCC = 0V or 5.25V, VIN = – 7V
q
– 0.15
mA
VTH
Differential Input Threshold Voltage for Receiver
– 7V
≤ VCM ≤ 12V
q
– 0.2
0.2
V
VTH
Receiver Input Hysteresis
VCM = 0V
q
45
mV
VOH
Receiver Output High Voltage
IO = – 4mA, VID = 200mV
q
3.5
V
VOL
Receiver Output Low Voltage
IO = 4mA, VID = – 200mV
q
0.4
V
IOZR
Three-State (High Impedance) Output
VCC = Max, 0.4V ≤ VO ≤ 2.4V
q
±1
A
Current at Receiver
RIN
Receiver Input Resistance
– 7V
≤ VCM ≤ 12V
q
70
96
k
ICC
Supply Current
No Load, Output Enabled
q
120
200
A
No Load, Output Disabled
q
80
120
A
ISHDN
Supply Current in Shutdown Mode
DE = 0V, RE = VCC
110
A
IOSD1
Driver Short-Circuit Current, VOUT = HIGH
– 7V
≤ VO ≤ 12V
q
35
250
mA
IOSD2
Driver Short-Circuit Current, VOUT = LOW
– 7V
≤ VO ≤ 12V
q
35
250
mA
IOSR
Receiver Short-Circuit Current
0V
≤ VO ≤ VCC
q
785
mA
TJMAX = 125°C, θJA = 130°C/ W (N8)
TJMAX = 125°C, θJA = 150°C/ W (S8)
1487
LTC1487CN8
LTC1487CS8
1
2
3
4
8
7
6
5
TOP VIEW
VCC
B
A
GND
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
R
D
RO
RE
DE
DI
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