Texas Instruments SN65LBC031D, SN65LBC031DR, SN65LBC031P, SN65LBC031QD, SN65LBC031QDR Datasheet

SN65LBC031Q
HIGH-SPEED CONTROLLER AREA NETWORK (CAN) TRANSCEIVERS
SLRS048B – MAY 1998 – REVISED MAY 2000
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
D
SN65LBC031Q Meets Standard ISO/DIS 11898 (up to 500 k Baud)
D
Driver Output Capability at 50 mA
D
Wide Positive and Negative Input/output Bus Voltage Range
D
Bus Outputs Short-Circuit-Protected to Battery Voltage and Ground
D
Thermal Shutdown
D
Available in Q-Temp Automotive – High Reliability Automotive Applications – Configuration Control/Print Support – Qualification to Automotive Standards
description
The SN65LBC031Q is a CAN transceiver used as an interface between a CAN controller and the physical bus for high speed applications of up to 500 k Baud. The device provides transmit capability to the differential bus and differential receive capability to the controller. The transmitter outputs (CANH and CANL), feature internal transition regulation to provide controlled 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 k Baud the ASC terminal is open or tied to GND. For slower speed operation at 125 k Baud 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 SN65LBC031Q is characterized for operation over the automotive temperature range of –40°C to 125°C.
logic diagram
ASC
CANH
2R
2R
CANL
GND
V
CC
RX
REF
TX
RR
R2
R3
R1
R1
RR
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.
FUNCTION TABLE
TX
CANH
BUS STATE
CANL RX
L
High or floating
L = low, H = high
H
FloatingLFloating
L H
Dominant
Recessive
1 2 3 4
8 7 6 5
TX
GND
V
CC
RX
ASC CANH CANL REF
D PACKAGE
(TOP VIEW)
TERMINAL
TERMINAL FUNCTIONS
DESCRIPTION
TX GND
RX
V
CC
REF CANL CANH
ASC
Transmitter input
Adjustable slope control
Ground Supply voltage Receiver output Reference output Low side bus output driver High side bus output driver
SN65LBC031Q HIGH-SPEED CONTROLLER AREA NETWORK (CAN) TRANSCEIVERS
SLRS048B – MAY 1998 – REVISED MAY 2000
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Logic supply voltage, V
CC
(see Note 1) 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bus terminal voltage –5 V to 20 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input current at TX and ASC terminal, II ±10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage at TX
and ASC terminal, VI 2 × V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA –40°C to125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating junction temperature range, TJ –40°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation at (or below) 25°C free-air temperature See Dissipation Rating Table. . Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Case temperature for 10 sec TC, D package 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values, except differential bus voltage, are measured with respect to GND.
DISSIPATION RATING TABLE
PACKAGE
TA 25°C
POWER RATING
OPERATING FACTOR
ABOVE TC = 25°C
TC = 125°C
POWER RATING
D 725 mW 5.8 mW/°C 145 mW
800
400
0
25 45 65 85
– Maximum Continuous Dissipation – mW
DISSIPATION DERATING CURVE
vs
FREE-AIR TEMPERATURE
105 125
1000
600
200
P
D
TA – Free-Air Temperature – °C
TC = 25°C
35 55 75 95 115
D = 5.8 mW/°C
Figure 1
SN65LBC031Q
HIGH-SPEED CONTROLLER AREA NETWORK (CAN) TRANSCEIVERS
SLRS048B – MAY 1998 – REVISED MAY 2000
3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
recommended operating conditions
MIN NOM MAX UNIT
Logic supply voltage, V
CC
4.5 5 5.5 V Voltage at any bus terminal (separately or common mode), VI or VIC (see Note 3) –2 7 V High-level input voltage, V
IH
TX 2 V
CC
V
Low-level input voltage, V
IL
TX 0 0.8 V
p
Transmitter –50 mA
High-level output current, I
OH
Receiver –400 µA
p
Transmitter 50
Low-level output current, I
OL
Receiver 1
mA
Operating free-air temperature, T
A
–40 125 °C
NOTES: 2. All voltage values, except differential bus voltage, are measured with respect to the ground terminal.
3. For bus voltages from –5 V to –2 V and 7 V to 20 V the receiver output is stable.
SYMBOL DEFINITION
DATA SHEET PARAMETER
DEFINITION
V
O(CANHR)
CANH bus output voltage (recessive state)
V
O(CANLR)
CANL bus output voltage (recessive state)
V
O(CANHD)
CANH bus output voltage (dominant state)
V
O(CANLD)
CANL bus output voltage (dominant state)
V
O(DIFFR)
Bus differential output voltage (recessive state)
V
O(DIFFD)
Bus differential output voltage (dominant state)
V
I(ASC)
Adjustable slope control input voltage
electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
O(REF)
Reference source output voltage I
REF
= ±20 µA 0.45V
CC
0.55V
CC
V
R
O(REF)
Reference source output resistance 5 10 k
I
CC(REC)
Logic supply current, recessive state
12 20
I
CC(DOM)
Logic supply current, dominant state
See Figure 2
, S1
closed
55 80
mA
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