XR31233,
XR31234, XR31235
±36V Fault Tolerant, Single 3.3V
CAN Bus Transceivers
General Description
The XR31233, XR31234 and XR31235 are controller area network
(CAN) transceivers that conform to the ISO 11898 standard. Each
provides transmit and receive signaling rates up to 1Mbps between a
differential CAN bus and a CAN controller.
These devices are designed with cross-wire protection, overvoltage
protection up to ±36V, loss of ground protection, thermal shutdown
protection and common-mode transient protection of ±100V making
them ideal for harsh environments used in industrial, automotive,
transportation and building automation applications.
The low power consumption of the 3.3V supply makes these CAN
transceivers desirable and are fully interoperable with 5V supplied
transceivers on the same bus. They also offer high speed, slope
control and low-power standby modes of operation.
FEATURES
■■
Single 3.3V operation
■■
±36V fault tolerance on analog bus pins
■■
Extended -25V to +25V common mode
operation
■■
Robust ESD protection:
±16kV HBM (bus pins)
±8kV contact discharge (bus pins)
±3kV HBM (non-bus pins)
■■
Up to 1Mbps data rates
■■
11898-2 ISO compatible
■■
GIFT/ICT compliant
■■
5V tolerant LVTTL I/O’s
■■
200μA low current standby mode
■■
XR31233: Loopback mode
■■
XR31234: Ultra low current sleep mode
50nA typical
■■
XR31235: Autobaud loopback mode
APPLICATIONS
■■
Industrial control systems
■■
Motor and robotic control
■■
Building and climate control (HVAC)
■■
Automotive and transportation
Typical Application
Ordering Information -
Back Page
Node 1
MCU or DSP
CAN
Controller
Node 2
MCU or DSP
CAN
Controller
Node 3
MCU or DSP
CAN
Controller
(with termination)
MCU or DSP
CAN
Controller
Node N
CAN Transceiver
XR3123x
CAN Transceiver
XR3123x
CAN Transceiver
XR3123x
CAN Transceiver
XR3123x
RTERM
RTERM
Figure 1: Typical CAN Bus
REV1A
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XR
31233, XR31234, XR31235
Absolute Maximum Ratings
Stresses beyond the limits listed below may cause
permanent damage to the device. Exposure to any Absolute
Maximum Rating condition may affect device reliability and
lifetime.
V
CC
.................................................................... -0.3V to 7V
Voltage at any bus terminal (CANH or CANL).. -36V to 36V
Voltage input, transient pulse, CANH and CANL,
through 100Ω (Figure
9)
............................... -100V to 100V
Input voltage (D, RS, EN, LBK, AB) .................. -0.5V to 7V
Output voltage ................................................... -0.5V to 7V
Receiver output current .............................. -10mA to 10mA
Continuous total power dissipation .......................... 540mW
Operating junction temperature ................................. 150°C
Storage temperature.................................... -65°C to 150°C
Lead temperature (soldering 10 seconds) ................. 300°C
Operating Conditions
V
CC
supply range .............................................3.0V to 3.6V
Operating temperature range ...................... -40°C to 125°C
Package power dissipation, 8-pin NSOIC Ѳ
JA
....128.4°C/W
ESD Ratings
Human Body Model (HBM), bus pins ........................ ±16kV
Human Body Model (HBM), non-bus pins ................... ±3kV
IEC61000-4-2 (Contact Discharge), bus pins .............. ±8kV
REV1A
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XR
31233, XR31234, XR31235
Electrical Characteristics
Unless otherwise noted: V
CC
= 3.0V to 3.6V, T
A
= T
MIN
to T
MAX
. Typical values are at V
CC
= 3.3V, T
A
= 25°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Driver DC Characteristics
V
O(D)
Bus output voltage
(Dominant)
Bus output voltage
(Recessive)
CANH
CANL
CANH
CANL
D at 0V, RS at 0V,
see
Figure 3
and
Figure 4
D at 3V, RS at 0V,
see
Figure 3
and
Figure 4
D at 0V, RS at 0V,
see
Figure 3
and
Figure 4
D at 0V, RS at 0V,
see
Figure 4
and
Figure 5
D at 3V, RS at 0V,
see
Figure 3
and
Figure 4
D at 3V, RS at 0V, No Load
V
OC(PP)
I
IH
I
IL
Peak-to-peak common-mode output voltage
2.3
0.5
2.3
2.3
1.5
1.2
-120
-0.5
1
–30
–30
-250
2
2
V
CC
1.25
V
V
O
V
3
V
3
12
0.05
mV
V
V
30
30
μA
μA
V
OD(D)
Differential output voltage (Dominant)
V
OD
Differential output voltage (Recessive)
See
Figure 12
D = 2V or EN = 2V or
LBK = 2V or AB = 2V
D = 0.8V or EN = 0.8V or
LBK = 0.8V or AB = 0.8V
VCANH = –25V, CANL Open,
see
Figure 17
VCANH = 25V, CANL Open,
see
Figure 17
VCANH = –25V, CANH Open,
see
Figure 17
VCANH = 25V, CANH Open,
see
Figure 17
-3
High-level input current
Low-level input current
D, EN, LBK, AB
D, EN, LBK, AB
3
mA
I
OS
Short-circuit output current
250
C
O
I
IRS(S)
Output capacitance
RS input current for standby
Sleep
Standby
See receiver input capacitance
RS at 0.75 Vcc
EN at 0V, D at V
CC
, RS at 0V
or VCC
RS at V
CC
, D at V
CC
, AB at 0V,
LBK at 0V, EN at V
CC
D at 0V, No Load, AB at 0V,
LBK at 0V
D at V
CC
, No Load, AB at 0V,
LBK at 0V, RS at 0V, EN at V
CC
-10
0.05
200
2
μA
600
6
mA
6
μA
I
CC
Supply current
Dominant
Recessive
REV1A
3/16
XR
31233, XR31234, XR31235
Electrical Characteristics, (Continued)
Unless otherwise noted: V
CC
= 3.0V to 3.6V, T
A
= T
MIN
to T
MAX
. Typical values are at V
CC
= 3.3V, T
A
= 25°C.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Receiver DC Characteristics
V
IT+
V
IT-
V
HYS
Positive-going input threshold voltage
Negative-going input threshold voltage
Hysteresis voltage (VIT+ to VIT–)
V
CC
< 3.3V, I
O
= –4mA,
see
Figure 8
V
CC
≥ 3.0V, I
O
= –4mA,
see
Figure 8
I
O
= 4mA, see
Figure 8
CANH or CANL at 25V
CANH or CANL at –25V
Other bus pin at 0V, D at 3 V,
AB at 0V, LBK at 0V, RS at 0V,
EN at V
CC
Pin-to-ground,
VI = 0.4 sin (4E6πt) + 0.5V,
D at 3V, AB at 0V, LBK at 0V,
EN at V
CC
Pin-to-pin,
VI = 0.4 sin (4E6πt) + 0.5V,
D at 3V, AB at 0V, LBK at 0V,
EN at V
CC
D at 3V, AB at 0V, LBK at 0V,
EN at V
CC
40
20
400
-1400
2.0
2.4
AB at 0V, LBK at 0V, EN at
VCC, see Table 1
500
750
650
100
900
mV
V
OH
High-level output voltage
V
0.4
1250
-500
μA
V
OL
I
I
Low-level output voltage
Bus input current
C
I
Input capacitance (CANH or CANL)
40
pF
C
ID
Differential input capacitance
20
pF
R
ID
R
IN
Differential input resistance
Input resistance (CANH or CANL) to ground
100
50
kΩ
kΩ
REV1A
4/16
XR
31233, XR31234, XR31235
Electrical Characteristics (Continued)
Unless otherwise noted: V
CC
= 3.0V to 3.6V, T
A
= T
MIN
to T
MAX
. Typical values are at V
CC
= 3.3V, T
A
= 25°C.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Driver AC Characteristics
RS at 0V, see
Figure 6
t
PLH
Propagation delay time, low-to-high-level output
RS with 10kΩ to ground,
see
Figure 6
RS with 100kΩ to ground,
see
Figure 6
RS at 0V, see
Figure 6
t
PHL
Propagation delay time, high-to-low-level output
RS with 10kΩ to ground,
see
Figure 6
RS with 100kΩ to ground,
see
Figure 6
RS at 0V, see
Figure 6
t
sk(p)
Pulse skew ( |t
PHL
– t
PLH
| )
RS with 10kΩ to ground,
see
Figure 6
RS with 100kΩ to ground,
see
Figure 6
t
r
t
f
t
r
t
f
t
r
t
f
t
en(s)
t
en(z)
Differential output signal rise time
Differential output signal fall time
Differential output signal rise time
Differential output signal fall time
Differential output signal rise time
Differential output signal fall time
Enable time from standby to dominant
Enable time from sleep to dominant
XR31234
RS at 0V, see
Figure 6
5
5
30
30
350
350
0.6
1
35
70
500
70
130
870
35
60
370
70
70
135
135
1400
1400
1.5
5
ns
ns
ns
ns
ns
ns
μs
μs
ns
85
125
870
120
180
1200
ns
ns
RS with 10kΩ to ground,
see
Figure 6
RS with 100kΩ to ground,
see
Figure 6
See
Figure 10
See
Figure 11
Receiver AC Characteristics
t
PLH
t
PHL
t
sk(p)
t
r
t
f
Propagation delay time, low-to-high-level output
Propagation delay time, high-to-low-level output
Pulse skew ( |t
PHL
– t
PLH
| )
Output signal rise time
(1)
Output signal fall time
(1)
See
Figure 8
35
35
7
5
5
60
60
ns
ns
ns
ns
ns
NOTE:
1. This spec is guaranteed by design and bench characterization.
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