LT1796 Linear Technology, LT1796 Datasheet

no-image

LT1796

Manufacturer Part Number
LT1796
Description
Overvoltage Fault Protected CAN Transceiver
Manufacturer
Linear Technology
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LT1796
Manufacturer:
LT/凌特
Quantity:
20 000
Part Number:
LT1796CN8#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1796CS8
Manufacturer:
LT/凌特
Quantity:
20 000
Part Number:
LT1796CS8#PBF
Manufacturer:
MICREL
Quantity:
235
Part Number:
LT1796CS8#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1796CS8#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LT1796IN8
Quantity:
2
Part Number:
LT1796IS8
Manufacturer:
TI
Quantity:
5 510
Part Number:
LT1796IS8
Manufacturer:
MOTO
Quantity:
5 510
www.DataSheet4U.com
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

Related parts for LT1796

LT1796 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 ...

Page 2

... CANH, CANL Data Line Pins ...................... – 80V to 80V Receiver Output Voltages ............................– 0. Operating Temperature Range LT1796C .................................................. LT1796I .............................................. – Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec).................. 300 C DC ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T ...

Page 3

... Figures 4V, Figures Figures 47k 47k S Note 3: Bit time and data rate specifications are guaranteed by driver and receiver delay time measurements LT1796 = 0V unless otherwise noted. RS MIN TYP MAX 0.5 0.9 0.5 0 3.6 0.15 0 2.25 2.5 2.7 – 2.5 2 ...

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 250 200 150 100 1796 G04 Transmitter Propagation Delay vs Temperature 700 600 500 400 ...

Page 5

... RXDOFF 300 t RXDON 250 200 – 100 –25 TEMPERATURE ( C) 1796 G11 . In the recessive state (TXD high), the CC is high (V > 4V), the circuit goes S RS will be limited to about 500 A in the low state. with a resistor greater S LT1796 is S 1796f 5 ...

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 DIFFHI V DIFF 25% V DIFFLO t TXDOFF Figure 2. Driver Delay Waveforms 3.5V CANH 3V 2.5V CANL = 2.5V RXD 0.8V t RXDON Figure 4. Reciever Delay Waveforms ...

Page 7

... N .053 – .069 (1.346 – 1.752) 0 – 8 TYP .016 – .050 .014 – .019 (0.406 – 1.270) (0.355 – 0.483) TYP INCHES (MILLIMETERS) LT1796 .400* MAX .130 .005 (3.302 0.127) .120 .020 (3.048) MIN (0.508) MIN .018 .003 (0 ...

Page 8

... COMMENTS I = 300 A Typ 300 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 ...

Related keywords