LT1791CN#PBF Linear Technology, LT1791CN#PBF Datasheet

IC TXRX RS485/RS422 60V 14-DIP

LT1791CN#PBF

Manufacturer Part Number
LT1791CN#PBF
Description
IC TXRX RS485/RS422 60V 14-DIP
Manufacturer
Linear Technology
Type
Transceiverr
Datasheets

Specifications of LT1791CN#PBF

Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Through Hole
Package / Case
14-DIP (0.300", 7.62mm)
Device Type
Differential
Interface Type
RS422, RS485
No. Of Drivers
1
Supply Voltage Range
4.75V To 5.25V
Driver Case Style
DIP
No. Of Pins
14
Operating Temperature Range
0°C To +70°C
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LT1791CN#PBF
Manufacturer:
LTC
Quantity:
1 311
Company:
Part Number:
LT1791CN#PBF
Manufacturer:
LTNEAR
Quantity:
20 000
FEATURES
APPLICATIO S
TYPICAL APPLICATIO
Protected from Overvoltage Line Faults to 60V
ESD Protection to IEC-1000-4-2 Level 4
ISO 11898 Compatible
High Input Impedance Supports Up to 256 Nodes
Controlled Slew Rates for EMI Emissions Control
High Impedance Outputs When Off or
Powered Down
Short-Circuit Protection On All Outputs
Thermal Shutdown Protection
Pin Compatible with Philips PCA82C251
Industrial Control Data Networks
Automotive Systems
HVAC Controls
RXD
TXD
15kV Air Gap Test
8kV Contact Mode Test
1
4
GND
D
LT1796
2
R
5V
R
V
S
U
REF
8
120
R
0.1 F
7
6
5
Fault Protected CAN Bus Network
T
U
0.1 F
7
6
5
R
120
V
T
REF
R
S
LT1796
8
5V
R
GND
D
DESCRIPTIO
2
The LT
ance to survive in industrial and automotive environ-
ments. Discrete protection devices are not needed. Bus
interface pins can withstand voltage faults up to 60V with
respect to ground with no damage to the device. Faults
may occur while the transceiver is active, shut down or
powered off. On-chip ESD protection withstands up to
tested per IEC-1000-4-2. Loss of power or ground con-
nections does not damage the IC.
The circuit operates with data rates up to 125kbaud. A slew
control pin allows control of transmitted data pulse edges
to control EMI and reflection problems on imperfectly
terminated lines. High output current drive allows the use
of inexpensive PVC cable with impedance as low as 72 .
The 100k input impedance allows up to 256 transceivers
per data network.
The LT1796 is available in 8-lead PDIP and SO packages.
Overvoltage Fault Protected
15kV air discharges and 8kV contact mode discharges
, LTC and LT are registered trademarks of Linear Technology Corporation.
1796 TA01
1
4
®
TXD
RXD
1796 CAN transceiver provides built-in fault toler-
CANH-CANL
TXD IN
5V/DIV
2V/DIV
2V/DIV
2V/DIV
CANH
CANL
125kbps CANH and CANL Driver Output
U
CAN Transceiver
5V/DIV
LT1796
1796 TA02
1
1796f

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LT1791CN#PBF Summary of contents

Page 1

... High output current drive allows the use of inexpensive PVC cable with impedance as low The 100k input impedance allows up to 256 transceivers per data network. The LT1796 is available in 8-lead PDIP and SO packages. , LTC and LT are registered trademarks of Linear Technology Corporation 120 125kbps CANH and CANL Driver Output ...

Page 2

LT1796 ABSOLUTE MAXIMUM (Note 1) Supply Voltage (V ) .............................................. 44V CC R Slope Control Input Voltage ................ – 0.3V to 44V S V Reference Output Pin ......................... – 0. REF Driver Input Voltage .................................. ...

Page 3

DC ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER V Differential Input Threshold Voltage TH for Receiver V Receiver Input Hysteresis TH V Receiver Output High Voltage OH V Receiver Output Low Voltage OL I Receiver Short-Circuit ...

Page 4

LT1796 W U TYPICAL PERFOR A CE CHARACTERISTICS Dominant State Bus Voltage 3 2.5 2.0 1.5 1.0 0 100 Pin Current ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS Receiver Thresholds vs Temperature 0.80 0.75 V RISING TH 0.70 0.65 0.60 –50 – TEMPERATURE ( CTIO S TXD (Pin 1): Driver Input. Logic-level thresholds ...

Page 6

LT1796 W BLOCK DIAGRA 1 DRIVER TXD SLOPE STANDBY RXD 4 RX REFERENCE 5 V REF VOLTAGE DIAGRA S 5V TXD 2. – V DIFF CANH V ...

Page 7

... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 8

... A Typ CC Controlled Driver Slew Rate 10Mbaud Operation Up to 256 Transceivers On the Bus 15kV ESD Protected www.linear.com R T 120 5V 0 LT1796 TXD RXD 5 V REF R GND S 1796 TA03 8 2 47k LT/TP 0203 2K • PRINTED IN THE USA LINEAR TECHNOLOGY CORPORATION 2001 1796f ...

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