LT1791HS#TRPBF Linear Technology, LT1791HS#TRPBF Datasheet - Page 16

• 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

LT1785/LT1785A/
LT1791/LT1791A
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
LTC485
LTC491
LTC1483
LTC1485
LTC1487
LTC1520
LTC1535
LTC1685
LTC1687
16
RO
RE
DE
DI
1
2
3
4
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
TX
LT1785
RX
DESCRIPTION
Low Power RS485 Interface Transceiver
Differential Driver and Receiver Pair
Ultralow Power RS485 Low EMI Transceiver
Differential Bus Transceiver
Ultralow Power RS485 with Low EMI, Shutdown and High Input Impedance
50Mbps Precision Quad Line Receiver
Isolated RS485 Full-Duplex Transceiver
52Mbps RS485 Half-Duplex Transceiver
52Mbps RS485 Full-Duplex Transceiver
RO
RE
DE
B
A
DI
●
FAX: [phone]
7
6
1
2
3
4
120Ω
R
T
TX
LT1785
RX
Figure 11. RS485 Network with 120V AC Line Fault Protection
Figure 10. Half-Duplex RS485 Network Operation
DI
B
A
●
4
www.linear.com
6
5
8
7
LT1785
DE
V
CC
3
6
A
RE
1.5KE36CA
2
B
7
RO
1
POLYSWITCH
TR600-150
RAYCHEM
× 2
DI
4
COMPOSITE
CARBON
LT1785
47Ω
47Ω
5W
DE
3
6
A
RE
2
0.1μF
300V
B
7
RO
1
R
T
,120Ω
COMMENTS
I
I
Controlled Driver Slew Rate
10Mbaud Operation
Channel-to-Channel Skew 400ps (Typ)
2500V
Propagation Delay Skew 500ps (Typ)
Propagation Delay Skew 500ps (Typ)
Up to 256 Transceivers on the Bus
CC
CC
= 300μA (Typ)
= 300μA
RMS
Isolation in Surface Mount Package
120Ω
R
T
© LINEAR TECHNOLOGY CORPORATION 1998
7
6
B
A
178591 F11
LT 0409 REV C • PRINTED IN USA
LT1785
RX
TX
1
2
3
4
178591 F10
RO
RE
DE
DI
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