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參數(shù)資料
| 型號(hào)： | LT1791C |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 60V Fault Protected RS485/RS422 Transceivers |
| 中文描述： | 60V的故障保護(hù)RS485/RS422收發(fā)器 |
| 文件頁(yè)數(shù)： | 3/12頁(yè) |
| 文件大?。?/td> | 196K |
| 代理商： | LT1791C |
3
LT1785/LT1785A
LT1791/LT1791A
DC ELECTRICAL CHARACTERISTICS
The
G
denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25
°
C, V
CC
= 5V.
SYMBOL
V
OD1
V
OD2
PARAMETER
Differential Driver Output Voltage (Unloaded)
Differential Driver Output Voltage (With Load)
CONDITIONS
I
O
= 0
R = 50
(RS422), Figure 1
R = 27
(RS485), Figure 1
R = 18
R = 27
or R = 50
, Figure 1
MIN
TYP
4.1
2.70
2.45
2.2
MAX
5
UNITS
G
V
V
V
V
V
G
G
G
2.0
1.5
1.2
V
OD
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); (LT1791 or LT1785 with
DE = 0V)
G
0.2
V
OC
V
OC
R = 27
or R = 50
, Figure 1
R = 27
or R = 50
, Figure 1
G
2
2.5
3
V
V
G
0.2
V
IH
V
IL
I
IN1
I
IN2
DI, DE, RE
DI, DE, RE
DI, DE, RE
V
IN
= 12V
V
IN
= –7V
–60V
≤
V
IN
≤
60V
LT1785/LT1791: –7V
≤
V
CM
≤
12V
LT1785A/LT1791A: –7V
≤
V
CM
≤
12V
–7V < V
CM
< 12V
I
O
= –400
μ
A, V
ID
= 200mV
I
O
= 1.6mA, V
ID
= –200mV
RE > 2V or Power Off
G
2
V
V
G
0.8
5
0.3
G
μ
A
mA
mA
mA
G
G
G
0.15
–0.08
–0.15
–6
–0.2
–0.2
6
V
TH
Differential Input Threshold Voltage for Receiver
G
G
0.2
0
V
V
V
TH
V
OH
V
OL
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State (High Impedance) Output Current
at Receiver 0V < V
OUT
< 6V
Receiver Input Resistance (LT1791)
20
4
0.3
mV
G
3.5
V
V
G
0.5
1
G
–1
μ
A
R
IN
–7V
≤
V
CM
≤
12V
– 60V
≤
V
CM
≤
60V
–7V
≤
V
CM
≤
12V
G
85
125
125
90
k
k
k
LT1785
RS485 Unit Load
Driver Short-Circuit Current
G
50
0.25
250
250
6
I
SC
V
OUT
= HIGH, Force V
O
= –7V
V
OUT
= LOW, Force V
O
= 12V
V
O
= 60V
V
O
= –60V
0V
≤
V
O
≤
V
CC
–7V
≤
V
O
≤
12V
–60V
≤
V
O
≤
60V
No Load, RE = 0V, DE = 5V
No Load, RE = 5V, DE = 5V
No Load, RE = 0V, DE = 0V
No Load, RE = 5V, DE = 0V
G
G
35
35
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Driver Output Fault Current
G
G
–6
Receiver Short-Circuit Current
Driver Three-State Output Current
G
±
30
0.3
6
9
9
8
0.3
G
G
–0.2
–6
I
CC
Supply Current
G
G
G
G
5.5
5.5
4.5
0.2
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| LT1791CN | 功能描述:IC TXRX RS485/RS422 60V 14-DIP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:121 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-DFN（3x3） 包裝:管件 |
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| LT1791CN-TR | 制造商:LINER 制造商全稱:Linear Technology 功能描述:60V Fault Protected RS485/RS422 Transceivers |
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