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
description
D PACKAGE
(TOP VIEW)
TX
GND
VCC
RX
1
8
2
7
3
6
4
5
ASC
CANH
CANL
REF
TERMINAL FUNCTIONS
TERMINAL
DESCRIPTION
TX
GND
VCC
Transmitter input
Ground
Supply voltage
RX
Receiver output
REF
Reference output
CANL
Low side bus output driver
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 VCC. 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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SN65LBC031, SN65LBC031Q, SN75LBC031
HIGH-SPEED CONTROLLER AREA NETWORK (CAN) TRANSCEIVERS
SLRS048A – MAY 1998 – REVISED APRIL 2000
logic diagram
VCC
ASC
R
R
R3
CANH
TX
CANL
R2
R1
2R
REF
2R
R1
RX
R
R
GND
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN65LBC031, SN65LBC031Q, SN75LBC031
HIGH-SPEED CONTROLLER AREA NETWORK (CAN) TRANSCEIVERS
SLRS048A – MAY 1998 – REVISED APRIL 2000
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Logic supply voltage, VCC (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 × VCC
Operating free-air temperature range, TA: SN65LBC031, SN65LBC031Q . . . . . . . . . . . . . . . – 40°C to125°C
SN75LBC031 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 85°C
Operating juncation 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, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 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
DISSIPATION DERATING CURVE
vs
FREE-AIR TEMPERATURE
PD – Maximum Continuous Dissipation – mW
1200
TC = 25°C
1000
P = 8.8 mW/°C
800
600
D = 5.8 mW/°C
400
200
0
25
35
45
55
65
75
85
95
105 115 125
TA – Free-Air Temperature – °C
Figure 1
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SN65LBC031, SN65LBC031Q, SN75LBC031
HIGH-SPEED CONTROLLER AREA NETWORK (CAN) TRANSCEIVERS
SLRS048A – MAY 1998 – REVISED APRIL 2000
recommended operating conditions
MIN
NOM
MAX
4.5
5
5.5
V
Logic supply voltage, VCC
Voltage at any bus terminal (separately or common mode), VI or VIC (see Note 3)
UNIT
–2
7
V
High-level input voltage, VIH
TX
2
V
Low-level input voltage, VIL
TX
0
VCC
0.8
–50
mA
–400
µA
Transmitter
High level output current,
High-level
current IOH
Receiver
Transmitter
Low level output current
Low-level
current, IOL
50
Receiver
Operating free-air
free air temperature,
temperature TA
1
SN75LBC031
–40
85
SN65LBC031, SN65LBC031Q
–40
125
V
mA
°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
VO(CANHR)
VO(CANLR)
CANH bus output voltage (recessive state)
VO(CANHD)
VO(CANLD)
CANH bus output voltage (dominant state)
VO(DIFFR)
VO(DIFFD)
Bus differential output voltage (recessive state)
VI(ASC)
Adjustable slope control input voltage
CANL bus output voltage (recessive state)
CANL bus output voltage (dominant state)
Bus differential output voltage (dominant state)
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
IREF = ± 20 µA
VO(REF)
RO(REF)
Reference source output voltage
ICC(REC)
ICC(DOM)
Logic supply current, recessive state
4
Reference source output resistance
Logic supply current, dominant state
POST OFFICE BOX 655303
See Figure 2,
2 S1 closed
• DALLAS, TEXAS 75265
MIN
TYP
MAX
UNIT
0.45 VCC
0.55 VCC
V
5
10
kΩ
12
20
55
80
mA
SN65LBC031, SN65LBC031Q, SN75LBC031
HIGH-SPEED CONTROLLER AREA NETWORK (CAN) TRANSCEIVERS
SLRS048A – MAY 1998 – REVISED APRIL 2000
transmitter electrical characteristics over recommended ranges of supply and operating free-air
temperature (unless otherwise noted)
PARAMETER
VO(CANHR)
VO(CANLR)
TEST CONDITIONS
Output voltage (recessive state)
See Figure
g
2,,
MIN
2
S1 open
TYP
0.5VCC
MAX
3
V
mV
VO(DIFFR)
VO(CANHD)
Differential output voltage (recessive state)
–500
0
50
Output voltage (dominant state)
2.75
3.5
4.5
VO(CANLD)
VO(DIFFD)
Output voltage (dominant state)
0.5
1.5
2.25
See Figure 2,
S1 closed
Differential output voltage (dominant state)
1.5
UNIT
2
3
–100
–185
V
IIH(TX)
High level input current (TX)
High-level
VIH = 2.4 V
VIH = VCC
IIH(ASC)
High level input current (ASC)
High-level
VIH = 2.4 V
VIH = VCC
100
165
200
340
IIL(TX)
IIL(ASC)
Low-level input current (TX)
VIL = 0.4 V
VIL = 0.4 V
–180
–400
µA
15
25
µA
CI(TX)
TX input capacitance
IO(ssH)
IO(ssL)
CANH short circuit output current
Low-level input current (ASC)
±2
8
VO(CANH) = –2 V to 20 V
VO(CANL) = 20 V to –2 V
CANL short circuit output current
µA
µA
pF
–95
–200
mA
140
250
mA
NOTE 2: All voltage values, except differential bus voltage, are measured with respect to the ground terminal.
transceiver dynamic characteristics over recommended operating free-air temperature range and
VCC = 5 V
PARAMETER
t(loop)
(l
)
SR(RD)
SR(DR)
Loop time
Differential-output slew rate
(recessive to dominant)
Differential-output slew rate
(dominant to recessive)
MAX
UNIT
See Figures 2 and 3,
S1 closed,
TEST CONDITIONS
VI(ASC) = 0 V or open circuit,
S2 open
280
ns
See Figures 2 and 3,
S1 closed,
VI(ASC) = VCC,
S2 closed
400
ns
See Figures 2 and 4,
S1 closed,
VI(ASC) = 0 or open circuit,
S2 open
35
V/µs
See Figures 2 and 4,
S1 closed,
VI(ASC) = VCC,
S2 closed
10
V/µs
See Figures 2 and 4,
S1 closed,
VI(ASC) = 0 or open circuit,
S2 open
10
V/µs
See Figures 2 and 4,
S1 closed,
VI(ASC) = VCC,
S2 closed
10
V/µs
S1 closed
td(RD)
td(DR)
Differential output delay time
Differential-output
See Figure 2
2,
tpd(RECRD)
tpd(RECDR)
Receiver propagation
g
delay
y
time
See Figures 2 and 5
MIN
TYP
55
ns
160
ns
90
ns
55
ns
NOTE 4: Receiver input pulse width should be >50 ns. Input pulses of