参数资料
型号: LTC1685CS8#PBF
厂商: Linear Technology
文件页数: 5/12页
文件大小: 0K
描述: IC TXRX RS485 PREC DELAY 8-SOIC
标准包装: 100
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: 管件
产品目录页面: 1354 (CN2011-ZH PDF)
2
LTC1685
WU
U
PACKAGE/ORDER I FOR ATIO
A
U
G
W
A
W
U
W
A
R
BSOLUTEXI
TI
S
(Note 1)
Supply Voltage (VDD) .............................................. 10V
Control Input Currents .................... – 100mA to 100mA
Control Input Voltages .................. – 0.5V to VDD + 0.5V
Driver Input Voltages .................... – 0.5V to VDD + 0.5V
Driver Output Voltages .................................. +12V/– 7V
Receiver Input Voltages ................................. +12V/– 7V
Receiver Output Voltages ............. – 0.5V to VDD + 0.5V
Receiver Input Differential ...................................... 10V
Short-Circuit Duration (Driver VOUT: – 7V to 10V,
Receiver VOUT: 0V to VDD) ............................... Indefinite
Operating Temperature Range
LTC1685C ............................................... 0
°C to 70°C
LTC1685I ............................................. –40
°C to 85°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300
°C
ORDER PART
NUMBER
1
2
3
4
8
7
6
5
TOP VIEW
VDD
B
A
GND
S8 PACKAGE
8-LEAD PLASTIC SO
RO
RE
DE
DI
R
D
TJMAX = 125°C, θJA = 150°C/ W
Consult factory for Military grade parts.
S8 PART MARKING
DC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOD1
Differential Driver Output (Unloaded)
IOUT = 0
q
VDD
V
VOD2
Differential Driver Output (With Load)
R = 50
(RS422)
2
V
R = 27
(RS485), Figure 1
q
1.5
VDD
V
VOD
Change in Magnitude of Driver Differential
R = 27
or 50, Figure 1
q
0.2
V
Output Voltage for Complementary
Output States
VOC
Driver Common Mode Output Voltage
R = 27
or 50, VDD = 5V, Figure 1
q
23
V
VOC
Change in Magnitude of Driver Common
R = 27
or 50, Figure 1
q
0.2
V
Mode 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
–1
1
A
IIN2
Input Current (A, B)
VA, VB = 12V, DE = 0, VDD = 0V or 5.25V
q
500
A
VA, VB = – 7V, DE = 0, VDD = 0V or 5.25V
q
– 500
A
VTH
Differential Input Threshold Voltage
– 7V
≤ VCM ≤ 12V
q
– 0.3
0.3
V
for Receiver
VTH
Receiver Input Hysteresis
VCM = 0V
25
mV
VOH
Receiver Output High Voltage
IOUT = – 4mA, VID = 300mV
q
3.5
4.8
V
VOL
Receiver Output Low Voltage
IOUT = 4mA, VID = – 300mV
q
0.4
V
IOZR
Three-State (High Impedance) Output
0.4V
≤ VOUT ≤ 2.4V
q
–1
1
A
Current at Receiver
IDD
Supply Current
No Load, Pins 2, 3, 4 = 0V or VDD
q
712
mA
IOSD1
Driver Short-Circuit Current, VOUT = HIGH
VOUT = – 7V or 10V (Note 5)
q
20
mA
LTC1685CS8
LTC1685IS8
1685
1685I
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VDD = 5V ± 5%, unless otherwise noted. (Notes 2, 3)
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