LT1791HS#TRPBF Linear Technology, LT1791HS#TRPBF Datasheet - Page 4

• Manufacturer Part Number: LT1791HS#TRPBF
• Description: IC TXRX RS485/RS422 60V 14-SOIC
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LT1791HS#TRPBF

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DC ELECTRICAL CHARACTERISTICS
LT1785/LT1785A/
LT1791/LT1791A
temperature range, otherwise specifi cations are at T
SYMBOL PARAMETER
V
V
V
V
Δ|V
V
V
I
I
V
ΔV
V
V
R
I
I
4
IN1
IN2
SC
CC
TH
OD1
OD2
OD
OC
IH
IL
OH
OL
IN
TH
OC
|
Differential Driver Output Voltage (Unloaded)
Differential Driver Output Voltage (With Load)
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)
Differential Input Threshold Voltage for Receiver
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State (High Impedance) Output Current at
Receiver 0V < V
Receiver Input Resistance (LT1791)
LT1785
RS485 Unit Load
Driver Short-Circuit Current
Driver Output Fault Current
Receiver Short-Circuit Current
Driver Three-State Output Current
Supply Current
OUT
< 6V
A
= 25°C, V
CONDITIONS
I
R = 50Ω (RS422), Figure 1
R = 27Ω (RS485), Figure 1
R = 18Ω
R = 27Ω or R = 50Ω, Figure 1
R = 27Ω or R = 50Ω, Figure 1
R = 27Ω or R = 50Ω, Figure 1
DI, DE, RE
DI, DE, RE
DI, DE, RE
V
V
–60V ≤ V
LT1785/LT1791: –7V ≤ V
LT1785A/LT1791A: –7V ≤ V
–7V < V
I
I
RE > 2V or Power Off
–7V ≤ V
– 60V ≤ V
–7V ≤ V
V
V
V
V
0V ≤ V
–7V ≤ V
–60V ≤ V
No Load, RE = 0V, DE = 5V
No Load, RE = 5V, DE = 5V
No Load, RE = 0V, DE = 0V
No Load, RE = 5V, DE = 0V
O
O
O
IN
IN
OUT
OUT
O
O
= 0
= –400μA, V
= 1.6mA, V
CC
= 60V
= –60V
= 12V
= –7V
The
= HIGH, Force V
= LOW, Force V
= 5V.
O
CM
CM
CM
O
≤ V
IN
O
CM
≤ 12V
l
≤ 60V
< 12V
≤ 12V
≤ 12V
≤ 60V
CC
denotes the specifi cations which apply over the full operating
≤ 60V
ID
ID
= –200mV
= 200mV
O
O
= 12V
= –7V
CM
CM
≤ 12V
≤ 12V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
–0.15
MIN
–0.2
–0.2
–0.2
2.0
1.5
1.2
3.5
–6
–1
85
50
35
35
–6
–6
2
2
–0.08
2.70
2.45
0.15
TYP
125
125
4.1
2.2
2.5
0.3
5.5
5.5
4.5
0.2
20
90
4
MAX
0.25
250
250
±35
0.2
0.2
0.8
0.3
0.2
0.5
0.3
0.3
5
3
5
6
0
1
6
6
9
9
8
178591fc
UNITS
mA
mA
mA
mV
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
kΩ
kΩ
kΩ
μA
μA
V
V
V
V
V
V
V
V
V
V
V
V
V