SN65LBC031, SN65LBC031Q, SN75LBC031
HIGH-SPEED CONTROLLER AREA NETWORK (CAN) TRANSCEIVERS
SLRS048A – MAY 1998 – REVISED APRIL 2000
D
D
D
D
D
D
SN75LBC031 Meets Standard ISO/DIS
11898 (up to 500 k Baud)
Driver Output Capability at 50 mA
Wide Positive and Negative Input/output
Bus Voltage Range
Bus Outputs Short-Circuit-Protected to
Battery Voltage and Ground
Thermal Shutdown
Available in Q-Temp Automotive
– HighRel Automotive Applications
– Configuration Control/Print Support
– Qualification to Automotive Standards
D PACKAGE
(TOP VIEW)
TX
GND
V
CC
RX
1
2
3
4
8
7
6
5
ASC
CANH
CANL
REF
TERMINAL FUNCTIONS
TERMINAL
TX
GND
VCC
RX
REF
CANL
DESCRIPTION
Transmitter input
Ground
Supply voltage
Receiver output
Reference output
Low side bus output driver
description
The SN75LBC031 is a CAN transceiver used as
CANH
High side bus output driver
an interface between a CAN controller and the
ASC
Adjustable slope control
physical bus for high speed applications of up to
500 kBaud. The device provides transmit
FUNCTION TABLE
capability to the differential bus and differential
CANH
CANL BUS STATE RX
TX
receive capability to the controller. The transmitter
L
H
L
Dominant
L
outputs (CANH and CANL), feature internal
High or floating Floating Floating Recessive
H
transition regulation to provide controlled
L = low, H = high
symmetry resulting in low EMI emissions. Both
transmitter outputs are fully protected against battery short circuits and electrical transients that can occur on
the bus lines. In the event of excessive device power dissipation the output drivers are disabled by the thermal
shutdown circuitry at a junction temperature of approximately 160°C. The inclusion of an internal pullup resistor
on the transmitter input ensures a defined output during power up and protocol controller reset. For normal
operation at 500 kBaud the ASC terminal is open or tied to GND. For slower speed operation at 125 kBaud the
bus output transition times can be increased to reduce EMI by connecting the ASC terminal to V
CC
. The receiver
includes an integrated filter that suppresses the signal into pulses less than 30 ns wide.
The SN75LBC031 is characterized for operation from –40°C to 85°C. The SN65LBC031 is characterized for
operation from –40°C to 125°C. The SN65LBC031Q is characterized for operation over the automotive
temperature range of – 40°C to 125°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright
©
2000, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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