General Description
The MAX13050/MAX13052/MAX13053/MAX13054 are
pin-for-pin compatible, industry-standard, high-speed, control
area network (CAN) transceivers with extended ±80V fault
protection. These products are ideal industrial network
applications where overvoltage protection is required.
These CAN transceivers provide a link between the CAN
protocol controller and the physical wires of the bus lines
in a CAN. These devices can be used for DeviceNet®
applications, requiring data rates up to 1Mbps.
The CAN transceivers have an input common-mode range
greater than ±12V, exceeding the ISO11898 specification
of -2V to +7V, and feature ±8kV ESD protection, making
these devices ideal for harsh industrial environments.
The CAN transceivers provide a dominant timeout
function that prevents erroneous CAN controllers from
clamping the bus to a dominant level if the TXD input is
held low for greater than 1ms. The MAX13050/MAX13052
provide a SPLIT pin used to stabilize the recessive
common-mode voltage. The MAX13052 also has a
slope-control mode that can be used to program the slew
rate of the transmitter for data rates of up to 500kbps.
The MAX13053 features a silent mode that disables the
transmitter. The MAX13053 also has a reference output
that can be used to bias the input of older CAN controllers
that have a differential comparator. The MAX13054 has a
separate dedicated logic input (VCC2) allowing interfacing
with a +3.3V microcontroller.
The MAX13050/MAX13052/MAX13053/MAX13054 are
available in an 8-pin SO package and are specified to
operate in the -40°C to +85°C and the -40°C to +125°C
temperature ranges.
Benets and Features
●Fully Compatible with the ISO11898 Standard
●±8kV ESD IEC 61000-4-2 Contact Discharge per
IBEE Test Facility
●±80V Fault Protection
●+3.3V Logic Compatible (MAX13054)
●High-Speed Operation of Up to 1Mbps
●Slope-Control Mode (MAX13052)
●Greater than ±12V Common-Mode Range
●Low-Current Standby Mode
●Silent Mode (MAX13053)
●Thermal Shutdown
●Short-Circuit Protection
●Transmit (TXD) Data Dominant Timeout
●Current Limiting
●SPLIT Pin (MAX13050/MAX13052)
Applications
●DeviceNet Nodes
●Medium- and Heavy-Duty Truck Systems
●Industrial
19-3598; Rev 2; 1/16
DeviceNet is a registered trademark of the Open DeviceNet
Vendor Association.
Functional Diagrams and Typical Operating Circuits appear
at end of data sheet.
MAX13050/MAX13052/
MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
VCC, VCC2 ..............................................................-0.3V to +6V
RS............................................................. -0.3V to (VCC + 0.3V)
TXD, STBY, S, REF, RXD .......................................-0.3V to +6V
CANH, CANL, SPLIT ..........................................................± 80V
Continuous Power Dissipation (TA = +70°C)
8-Pin SO (derate 5.9mW/°C above +70°C) ................. 470mW
Operating Temperature Range ......................... -40°C to +125°C
Junction Temperature ...................................................... +150°C
Storage Temperature Range .................................-65°C +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) ....................................... +260°C
(VCC = +5V ±5%, VCC2 = +3V to +3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V, VCC2 = +3.3V,
RL = 60Ω, and TA = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
VCC Supply Current ICC
Dominant, RL = 60Ω 72
mA
Recessive
MAX13050/MAX13052/
MAX13053 12.5
MAX13054 10
VCC2 Supply Current ICC2 MAX13054, TXD = VCC2 or unconnected 15 µA
Standby Current ISTANDBY
MAX13052 25 µA
MAX13050/MAX13054 11
Silent Mode ISILENT MAX13053 12.5 mA
Thermal-Shutdown Threshold TSH +165 °C
Thermal-Shutdown Hysteresis 13 °C
INPUT LEVELS (TXD, STBY, S)
High-Level Input Voltage VIH
2
V
TXD, STBY (MAX13054) 0.7 x
VCC2
Low-Level Input Voltage VIL
0.8
V
TXD, STBY (MAX13054) 0.3 x
VCC2
High-Level Input Current IIH
VTXD = VCC, VTXD = VCC2 (MAX13054) -5 +5 µA
VSTBY = VCC, VS = VCC (MAX13053) -5 +5
Low-Level Input Current IIL
VTXD = GND -300 -100 µA
VSTBY = GND, VS = GND (MAX13053) -10 -1
Input Capacitance CIN 10 pF
CANH, CANL TRANSMITTER
Recessive Bus Voltage VCANH,
VCANL
Normal mode, VTXD = VCC, no load 2 3 V
Standby mode, no load -100 +100 mV
Recessive Output Current ICANH,
ICANL
VCANH, VCANL = ±76V ±3 mA
-32V ≤ VCANH, VCANL ≤ +32V -2.5 +2.5
CANH Output Voltage VCANH VTXD = 0, dominant 3.0 4.25 V
CANL Output Voltage VCANL VTXD = 0, dominant 0.50 1.75 V
Matching Between CANH and
CANL Output Voltage ΔDOM VTXD = 0, dominant, TA = +25°C,
(VCANH + VCANL) - VCC -100 +150 mV
MAX13050/MAX13052/
MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
www.maximintegrated.com Maxim Integrated
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Absolute Maximum Ratings
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 in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
DC Electrical Characteristics
(VCC = +5V ±5%, VCC2 = +3V to +3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V, VCC2 = +3.3V,
RL = 60Ω, and TA = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Differential Output
(VCANH - VCANL)VDIFF
Dominant, VTXD = 0, 45Ω ≤ RL ≤ 60Ω 1.5 3.0 V
Recessive, VTXD = VCC, no load -50 +50 mV
CANH Short-Circuit Current ICANHSC VCANH = 0, VTXD = 0 -100 -70 -45 mA
CANL Short-Circuit Current ICANLSC
VCANL = 5V, VTXD = 0 40 60 90
mAVCANL = 40V, VTXD = 0 (Note 2) 40 60 90
VCANL = 76V, VTXD = 0 63
RXD OUTPUT LEVELS
RXD High-Output-Voltage Level VOH
I = -100µA 0.8 x
VCC
VCC
V
I = -100µA (MAX13054) 0.8 x
VCC2VCC2
RXD Low-Output-Voltage Level VOL I = 5mA 0.4 V
COMMON-MODE STABILIZATION (SPLIT) and REF
Output Voltage VSPLIT
Normal mode,
-500µA ≤ ISPLIT ≤ 500µA
0.3 x
VCC
0.7 x
VCC
V
Leakage Current ILEAK
Standby mode, -40V ≤ VSPLIT ≤ +40V 20 µA
Standby mode, -76V ≤ VSPLIT ≤ +76V 50
REF Output Voltage VREF -50µA ≤ IREF ≤ +50µA (MAX13053) 0.45 x
VCC
0.55 x
VCC
V
DC BUS RECEIVER (VTXD = VCC, CANH and CANL externally driven)
Differential Input Voltage VDIFF
-12V ≤ VCM ≤ +12V 0.5 0.7 0.9
V
MAX13050/MAX13052/MAX13054
-12V ≤ VCM ≤ +12V (standby mode) 0.50 1.15
Differential Input Hysteresis VDIFF(HYST)Normal mode, -12V ≤ VCM ≤ +12V 70 mV
Common-Mode Input Resistance RICM
Normal or standby mode,
VCANH = VCANL = ±12V 15 35 kΩ
Matching Between CANH and
CANL Common-Mode Input
Resistance
RIC_MATCH VCANH = VCANL -3 +3 %
Differential Input Resistance RDIFF
Normal or standby mode,
VCANH - VCANL = 1V 25 75 kΩ
Common-Mode Input Capacitance CIM VTXD = VCC 20 pF
Differential Input Capacitance VTXD = VCC 10 pF
Input Leakage Current ILI VCC = 0, VCANH = VCANL = 5V -5 +5 µA
SLOPE CONTROL RS (MAX13052)
Input Voltage for High Speed VIL_RS
0.3 x
VCC
V
MAX13050/MAX13052/
MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
www.maximintegrated.com Maxim Integrated
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DC Electrical Characteristics (continued)
(VCC = +5V ±5%, VCC2 = +3V to +3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V, VCC2 = +3.3V,
RL = 60Ω, and TA = +25°C.) (Note 1)
(VCC = +5V ±5%, VCC2 = +3V to +3.6V, RL = 60Ω, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at
VCC = +5V, VCC2 = +3.3V, and TA = +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage for Standby VIH_RS
0.75 x
VCC
V
Slope-Control Mode Voltage VSLOPE -200µA < IRS < 10µA 0.4 x
VCC
0.6 x
VCC
V
High-Speed Mode Current IIL_RS VRS = 0 -500 µA
ESD Protection IEC 61000-4-2 Contact Discharge
Method per IBEE test facility (Note 3) ±8 kV
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Delay TXD to Bus Active tONTXD Figure 1 (Note 4) 66 110 ns
Delay TXD to Bus Inactive tOFFTXD
Figure 1
(Note 4)
MAX13050/MAX13052/
MAX13053 61 95 ns
MAX13054 70 110
Delay Bus to Receiver Active tONRXD Figure 1 (Note 4) 54 115 ns
Delay Bus to Receiver Inactive tOFFRXD Figure 1 (Note 4) 46 160 ns
Delay TXD to RXD Active
(Dominant Loop Delay) tONLOOP Figure 1 (Note 4) 121 255 ns
Delay TXD to RXD Inactive
(Recessive Loop Delay) tOFFLOOP Figure 4 (Note 4) 108 255 ns
Delay TXD to RXD Active
(Dominant Loop Delay) Slew-
Rate Controlled
tONLOOP-S MAX13052
RRS = 24kΩ
(500kbps) 280 450 ns
RRS = 100kΩ
(125kbps) 0.82 1.6
µs
RRS = 180kΩ
(62.5kbps) 1.37 5
Delay TXD to RXD Inactive
(Loop Delay) Slew-Rate
Controlled
tOFFLOOP-S MAX13052
RRS = 24kΩ
(500kbps) 386 600 ns
RRS = 100kΩ
(125kbps) 0.74 1.6
µs
RRS = 180kΩ
(62.5kbps) 0.97 5
Differential Output Slew Rate ISRI MAX13052
RRS = 24kΩ
(500kbps) 10
V/µs
RRS = 100kΩ
(125kbps) 2.7
RRS = 180kΩ
(62.5kbps) 1.6
MAX13050/MAX13052/
MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
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DC Electrical Characteristics (continued)
Timing Characteristics
(VCC = +5V ±5%, VCC2 = +3V to +3.6V, RL = 60Ω, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at
VCC = +5V, VCC2 = +3.3V, and TA = +25°C.)
Note 1: All currents into the device are positive, all currents out of the device are negative. All voltages are referenced to the device
ground, unless otherwise noted.
Note 2: Guaranteed by design, not production tested.
Note 3: ESD tested by IBEE test facility. Please contact factory for report.
Note 4: For the MAX13052, VRS = 0.
Figure 1. Timing Diagram
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Dominant Time for Wake-Up
with Bus tWAKE Standby mode, VDIFF = +3V, Figure 2 0.75 1.5 3.00 µs
Delay STBY to Normal Mode
(DOMINANT) tSTBY-NORM
TXD = 0 (MAX13050, MAX13054)
FROM STBY falling to CANH - CANL = 0.9V 5 10 µs
TXD Dominant Timeout tDOM VTXD = 0 0.3 0.6 1.0 ms
0.9V
0.3 x VCC OR 0.3 x VCC2
0.7 x VCC OR 0.7 x VCC2
0.5V
tONTXD
tONRXD
tONLOOP
tOFFTXD
tOFFRXD
tOFFLOOP
RECESSIVE
DOMINANT
TXD
VDIFF
RXD
MAX13050/MAX13052/
MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
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Timing Characteristics (continued)
Timing Diagrams
(VCC = +5V, RL = 60Ω, CL = 100pF, VCC2 = +3.3V, and TA = +25°C, unless otherwise noted.)
Figure 2. Timing Diagram for Standby and Wake-Up Signal
SUPPLY CURRENT
vs. DATA RATE
MAX13050 toc02
DATA RATE (kbps)
SUPPLY CURRENT (mA)
900800700600500400300200100
20
25
30
35
40
15
0 1000
TA = +25°CTA = -40°C
TA = +125°C
STANDBY SUPPLY CURRENT
vs. TEMPERATURE (RS = VCC)
MAX13050 toc03
TEMPERATURE (°C)
STANDBY SUPPLY CURRENT (µA)
1007525 500-25
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
10.0
-50 125
MAX13052
SLEW RATE
vs. RRS AT 100kbps
MAX13050 toc01
RRS (kΩ)
SLEW RATE (V/µs)
18016014012010080604020
5
10
15
20
25
30
0
0 200
RECESSIVE
DOMINANT
MAX13052
tWAKE
0.9V
VDIFF
RXD
STANDBY MODE
DOMINANT
MAX13050/MAX13052/
MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
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Typical Operating Characteristics
Timing Diagrams (continued)
(VCC = +5V, RL = 60Ω, CL = 100pF, VCC2 = +3.3V, and TA = +25°C, unless otherwise noted.)
2.40
2.44
2.42
2.48
2.46
2.52
2.50
2.54
2.58
2.56
2.60
0 10 15 205 25 30 35 4540 50
REF VOLTAGE vs. REG OUTPUT CURRENT
MAX13050 toc07
REG OUTPUT CURRENT (µA)
REF VOLTAGE (V)
TA = -40°C
TA = +125°C TA = +25°C
SPLIT LEAKAGE CURRENT vs. TEMPERATURE
MAX13050 toc08
TEMPERATURE (°C)
LEAKAGE CURRENT (µA)
1007550250-25
0.001
0.01
0.1
1
10
0.0001
-50 125
RECEIVER OUTPUT LOW
vs. OUTPUT CURRENT
MAX13050 toc09
OUTPUT CURRENT (mA)
VOLTAGE RXD (V)
2015105
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
0
TA = -40°C
TA = +125°C
TA = +25°C
MAX13050/MAX13052/MAX13053
0
100
50
200
150
250
300
0 200 300100 400 500 600
RECEIVER OUTPUT HIGH
vs. OUTPUT CURRENT
MAX13050 toc10
OUTPUT CURRENT (µA)
RECEIVER OUTPUT HIGH (V
CC
2 - RXD) (mV)
TA = -40°C
TA = +125°C
TA = +25°C
MAX13054
RECEIVER OUTPUT HIGH
vs. OUTPUT CURRENT
MAX13050 toc11
OUTPUT CURRENT (mA)
RECEIVER OUTPUT HIGH (V
CC
- RXD) (V)
764 52 31
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
0 8
TA = -40°C
TA = +125°C
TA = +25°C
MAX13050/MAX13052/MAX13053
0
100.0
50.0
200.0
150.0
250.0
300.0
0 21 3 4 5
RECEIVER OUTPUT LOW
vs. OUTPUT CURRENT
MAX13050 toc12
OUTPUT CURRENT (mA)
VOLTAGE RXD (mV)
MAX13054
VCC2 = +3.3V
TA = -40°C
TA = +125°C
TA = +25°C
STANDBY SUPPLY CURRENT
vs. TEMPERATURE (STBY = VCC)
MAX13050 toc04
TEMPERATURE (°C)
STANDBY SUPPLY CURRENT (µA)
10075-25 0 25 50
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
4.0
-50 125
MAX13050
MAX13054
RECEIVER PROPAGATION DELAY
vs. TEMPERATURE
MAX13050 toc04
TEMPERATURE (°C)
RECEIVER PROPAGATION DELAY (ns)
1007525 500-25
10
20
30
40
50
60
70
80
90
100
0
-50 125
RECESSIVE
DATA RATE = 100kbps
DOMINANT
0
60
40
20
100
80
180
160
140
120
200
-50 -25 0 25 50 75 100 125
DRIVER PROPAGATION DELAY
vs. TEMPERATURE
MAX13050 toc06
TEMPERATURE (°C)
DRIVER PROPAGATION DELAY (ns)
DOMINANT
RECESSIVE
MAX13050/MAX13052/
MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
Maxim Integrated
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7
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Typical Operating Characteristics (continued)
(VCC = +5V, RL = 60Ω, CL = 100pF, VCC2 = +3.3V, and TA = +25°C, unless otherwise noted.)
DIFFERENTIAL VOLTAGE
vs. DIFFERENTIAL LOAD
MAX13050 toc13
DIFFERENTIAL LOAD RL (Ω)
DIFFERENTIAL VOLTAGE (V)
26022018014010060
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
20 300
TA = +125°C
TA = -40°C
TA = +25°C
RECEIVER PROPAGATION DELAY
MAX13051 toc14
200ns
VDIFF
(1V/div)
RXD
(2V/div)
200ns/div
MAX13054 WAVEFORM
VDIFF
2V/div
TXD
2V/div
RXD
2V/div
MAX13050 toc15
DRIVER PROPAGATION DELAY,
(RRS = 24kΩ, 75kΩ AND 100kΩ)
MAX13051 toc16
1.00µs
TXD
(5V/div)
VDIFF
(2V/div)
RRS = 24kΩ
VDIFF
(2V/div)
RRS = 75kΩ
VDIFF
(2V/div)
RRS = 100k
Ω
MAX13052
DRIVER PROPAGATION DELAY
MAX13051 toc17
200ns/div
TXD
(2V/div)
VDIFF
(1V/div)
LOOPBACK PROPAGATION DELAY
vs. RRS
MAX13051 toc18
RRS (kΩ)
LOOPBACK PROPAGATION DELAY (µs)
18016014012010080604020
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
0 200
RECESSIVE
DOMINANT
MAX13052
MAX13050/MAX13052/
MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
Maxim Integrated
│
8
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Typical Operating Characteristics (continued)
PIN
NAME
MAX13050
MAX13052
MAX13053
MAX13054
FUNCTION
1 1 1 1 TXD Transmit Data Input. TXD is a CMOS/TTL-compatible input from a CAN controller
with a 25kΩ pullup to VCC. For the MAX13054, TXD is pulled to VCC2.
2 2 2 2 GND Ground
3 3 3 3 VCC Supply Voltage. Bypass VCC to GND with a 0.1µF capacitor.
4 4 4 4 RXD
Receive Data Output. RXD is a CMOS/TTL-compatible output from the physical
bus lines CANH and CANL. For the MAX13054, RXD output voltage is referenced
to the VCC2 supply voltage.
5 5 — — SPLIT Common-Mode Stabilization Output. Output equaled to 0.5 x VCC. SPLIT goes
high impedance in standby mode .
6 6 6 6 CANL CAN Bus-Line Low
7 7 7 7 CANH CAN Bus-Line High
8 — — 8 STBY Standby Input. Drive STBY low for high-speed operation. Drive STBY high to
place the device in low-current standby mode.
— 8 — — RS
Mode-Select Input. Drive RS low or connect to GND for high-speed operation.
Connect a resistor between RS and GND to control output slope. Drive RS high
to put into standby mode.
— — 5 — REF Reference Output Voltage. Always on reference output voltage, set to 0.5 x VCC.
— — 8 — S Silent-Mode Input. Drive S low to enable TXD and to operate in high-speed mode.
Drive S high to disable the transmitter.
— — — 5 VCC2
Logic-Supply Input. VCC2 is the logic supply voltage for the input/output between
the CAN transceiver and microprocessor. VCC2 allows fully compatible +3.3V
logic on all digital lines. Bypass to GND with a 0.1µF capacitor. Connect VCC2 to
VCC for 5V logic compatibility.
MAX13050/MAX13052/
MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
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Pin Description
TOP VIEW
CANL
SPLITRXD
1
+
2
8
7
STBY
CANHGND
VCC
TXD
3
4
6
5
MAX13050
SO SO
CANL
SPLITRXD
1
2
8
7
RS
CANHGND
VCC
TXD
3
4
6
5
MAX13052
+
SO
CANL
VCC2
RXD
1
2
8
7
STBY
CANHGND
VCC
TXD
3
4
6
5
MAX13054
+
CANL
REFRXD
1
2
8
7
S
CANHGND
VCC
TXD
3
4
6
5
MAX13053
SO
+
Pin Congurations
Detailed Description
The MAX13050/MAX13052/MAX13053/MAX13054 ±80V
fault-protected CAN transceivers are ideal for industrial
network applications where overvoltage protection is
required. These devices provide a link between the CAN
protocol controller and the physical wires of the bus lines
in a control area network (CAN). These devices can be
used for DeviceNet applications, requiring data rates up
to 1Mbps.
The devices’ dominant timeout prevents the bus from
being blocked by a hungup microcontroller. If the TXD
input is held low for greater than 1ms, the transmitter
becomes disabled, driving the bus line to a recessive
state. The MAX13054 +3.3V logic input allows the device
to communicate with +3.3V logic, while operating from
a +5V supply. The MAX13050 and MAX13052 provide
a split DC-stabilized voltage. The MAX13053 has a
reference output that can be used to bias the input of a
CAN controller’s differential comparator.
All devices can operate up to 1Mbps (high-speed mode).
The MAX13052 slope-control feature allows the user to
program the slew rate of the transmitter for data rates
of up to 500kbps. This reduces the effects of EMI, thus
allowing the use of unshielded-twisted or parallel cable.
The MAX13050/MAX13052 and MAX13054 standby
mode shuts off the transmitter and switches the receiver
to a low-current/low-speed state.
The device input common-mode range is greater than
±12V, exceeding the ISO11898 specification of -2V to +7V,
and feature ±8kV Contact Discharge protection, making
these devices ideal for harsh industrial environments.
±80V Fault Protected
The devices feature ±80V fault protection. This extended
voltage range of CANH, CANL, and SPLIT allows use
in high-voltage systems and communication with high-
voltage buses.
Operating Modes
High-Speed Mode
The devices can achieve transmission rates of up to
1Mbps when operating in high-speed mode. Drive STBY
low to operate the MAX13050 and MAX13054 in high-
speed operation. Connect RS to ground to operate the
MAX13052 in high-speed mode.
Slope-Control Mode (MAX13052)
Connect a resistor from RS to ground to select slope-
control mode (Table 1). In slope-control mode, CANH
and CANL slew rates are controlled by the resistor (16kΩ
≤ RRS ≤ 200kΩ) connected between RS and GND.
Controlling the rise and fall slopes reduces high-frequency
EMI and allows the use of an unshielded-twisted pair or
a parallel pair of wires as bus lines. The slew rate can be
approximated using the formula below:
RS
250
SR(V / µs) R
=
where, SR is the desired slew rate and RRS is in kΩ.
Standby Mode (MAX13050/MAX13052/MAX13054)
In standby mode (RS or STBY = high), the transmitter
is switched off and the receiver is switched to a low-
current/low-speed state. The supply current is reduced
during standby mode. The bus line is monitored by a low-
differential comparator to detect and recognize a wake-
up event on the bus line. Once the comparator detects
a dominant bus level greater than tWAKE, RXD pulls low.
Drive STBY high for standby mode operation for the
MAX13050 and MAX13054. Apply a logic-high to RS to
enter a low-current standby mode for the MAX13052.
Silent Mode S (MAX13053)
Drive S high to place the MAX13053 in silent mode.
When operating in silent mode, the transmitter is disabled
regardless of the voltage level at TXD. RXD however, still
monitors activity on the bus line.
Common-Mode Stabilization (SPLIT)
SPLIT provides a DC common-mode stabilization
voltage of 0.5 x VCC when operating in normal mode.
SPLIT stabilizes the recessive voltage to 0.5 x VCC for
conditions when the recessive bus voltage is lowered,
caused by an unsupplied transceiver in the network with
a significant leakage current from the bus lines to ground.
Use SPLIT to stabilize the recessive common-mode
voltage by connecting SPLIT to the center tap of the split
termination, see the Typical Operating Circuits. In standby
mode or when VCC = 0, SPLIT becomes high impedance.
Table 1. Mode Selection Truth Table
MAX13052
CONDITION FORCED
AT RS MODE RESULTING
CURRENT AT RS
VRS or ≤ 0.3 x VCC High-Speed |IRS| ≤ 500µA
0.4 x VCC ≤ VRS ≤ 0.6
x VCC
Slope Control 10µA ≤ |IRS| ≤ 200µA
VRS ≥ 0.75 x VCC Standby |IRS| ≤ 10µA
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Reference Output (MAX13053)
MAX13053 has a reference voltage output (REF) set to
0.5 x VCC. REF can be utilized to bias the input of a CAN
controller’s differential comparator, and to provide power
to external circuitry.
Transmitter
The transmitter converts a single-ended input (TXD) from
the CAN controller to differential outputs for the bus lines
(CANH, CANL). The truth table for the transmitter and
receiver is given in Table 2.
TXD Dominant Timeout
The CAN transceivers provide a transmitter dominant
timeout function that prevents erroneous CAN controllers
from clamping the bus to a dominant level by a continuous
low TXD signal. When the TXD remains low for the 1ms
maximum timeout period, the transmitter becomes disabled,
thus driving the bus line to a recessive state (Figure 3). The
transmitter becomes enabled upon detecting a rising edge
at TXD.
Receiver
The receiver reads differential inputs from the bus lines
(CANH, CANL) and transfers this data as a single-ended
output (RXD) to the CAN controller. It consists of a
comparator that senses the difference VDIFF = (CANH
- CANL) with respect to an internal threshold of 0.7V. If
this difference is positive (i.e., VDIFF > 0.7), a logic-low is
present at RXD. If negative (i.e., VDIFF < 0.7V), a logic-
high is present.
The CANH and CANL common-mode range is greater
than ±12V. RXD is logic-high when CANH and CANL are
shorted or terminated and undriven.
Figure 3. Transmitter Dominant Timeout Timing Diagram
*For the MAX13054
Table 3. Transmitter and Receiver Truth Table
(MAX13053)
Table 2. Transmitter and Receiver Truth Table (MAX13052)
(MAX13050/MAX13054)
TXD RS CANH CANL BUS STATE RXD
Low VRS ≤ 0.75 x VCC High Low Dominant Low
High or Open VRS ≤ 0.75 x VCC VCC / 2 VCC / 2 Recessive High
X VRS ≥ 0.75 x VCC RICM to GND RICM to GND Recessive High
TXD RS CANH CANL BUS STATE RXD
Low VS < 0.8V High Low Dominant Low
High or Open VS < 0.8V VCC / 2 VCC / 2 Recessive High
X VS > 2V VCC / 2 VCC / 2 Recessive High
TXD RS CANH CANL BUS STATE RXD
Low VSTBY ≤ 0.8V
*VSTBY ≤ 0.3 x VCC2High Low Dominant Low
High or Open VSTBY ≤ 0.8V
*VSTBY ≤ 0.3 x VCC2VCC / 2 VCC / 2 Recessive High
XVSTBY ≥ 2V
*VSTBY ≥ 0.7 x VCC2RICM to GND RICM to GND Recessive High
TRANSMITTER
DISABLED
TRANSMITTER
ENABLED
tDOM
TXD
VCANH - VCANL
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+3.3V Logic Compatibility (MAX13054)
A separate input, VCC2, allows the MAX13054 to
communicate with +3.3V logic systems while operating from
a +5V supply. This provides a reduced input voltage threshold
to the TXD and STBY inputs, and provides a logic-high output
at RXD compatible with the microcontroller’s system voltage.
The logic compatibility eliminates longer propagation delay
due to level shifting. Connect VCC2 to VCC to operate the
MAX13054 with +5V logic systems.
Driver Output Protection
The current-limiting feature protects the transmitter output
stage against a short circuit to a positive and negative
battery voltage. Although the power dissipation increases
during this fault condition, current-limit protection prevents
destruction of the transmitter output stage. Upon removal
of a short, the CAN transceiver resumes normal operation.
Thermal Shutdown
If the junction temperature exceeds +165°C, the driver
is switched off. The hysteresis is approximately 13°C,
disabling thermal shutdown once the temperature drops
below +152°C. In thermal shutdown, CANH and CANL
go recessive. After a thermal-shutdown event, the IC
resumes normal operation when the junction temperature
drops below the thermal-shutdown hysteresis, and upon
the CAN transceiver detecting a rising edge at TXD.
Figure 4. Multiple Receivers Connected to CAN Bus
Figure 5. IEC 61000-4-2 Contact Discharge ESD Test Model
Figure 6. IEC 61000-4-2 ESD Test Model Current Waveform
MAX13052
RXD
RL = 120W
RL = 60Ω
TRANSCEIVER 2
TRANSCEIVER 1
TRANSCEIVER 3
CANH
CANL
TXD
TWISTED PAIR
RL = 60Ω
SPLIT
STUB LENGTH
KEEP AS SHORT
AS POSSIBLE
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
Cs
150pF
RC
50MΩ to 100MΩ
RD
330Ω
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
tr = 0.7ns to 1ns
30ns
60ns
t
100%
90%
10%
IPEAK
I
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Applications Information
Reduced EMI and Reections
In slope-control mode, the MAX13052’s CANH and CANL
outputs are slew-rate limited, minimizing EMI and reducing
reflections caused by improperly terminated cables.
In multidrop CAN applications, it is important to maintain a
direct point-to-point wiring scheme. A single pair of wires
should connect each element of the CAN bus, and the two
ends of the bus should be terminated with 120Ω resistors,
see Figure 4. A star configuration should never be used.
Any deviation from the point-to-point wiring scheme
creates a stub. The high-speed edge of the CAN data on
a stub can create reflections back down the bus. These
reflections can cause data errors by eroding the noise
margin of the system.
Although stubs are unavoidable in a multidrop system,
care should be taken to keep these stubs as small as
possible, especially in high-speed mode. In slope-control
mode, the requirements are not as rigorous, but stub
length should still be minimized.
Layout Consideration
CANH and CANL are differential signals and steps should
be taken to insure equivalent parasitic capacitance.
Place the resistor at RS as close as possible to the
MAX13052 to minimize any possible noise coupling at
the input.
Power Supply and Bypassing
The
se devices
require no special layout considerations
beyond common practices. Bypass VCC and VCC2 to
GND with a 0.1μF ceramic capacitor mounted close to the
IC with short lead lengths and wide trace widths.
ESD Protection
ESD-protection structures are incorporated on CANH and
CANL to protect against ESD encountered during handling
and assembly. CANH and CANL inputs have extra protection
to protect against static electricity found in normal operation.
Maxim’s engineers have developed state-of-the-art structures
to protect these pins against ±8kV ESD Contact Discharge
without damage. After an ESD event, the MAX13050/
MAX13052/MAX13053/MAX13054 continue working without
latchup. ESD protection can be tested in several ways. The
CANH and CANL inputs are characterized for protection to
±8kV using the IEC 61000-4-2 Contact Discharge Method per
IBEE Test facility.
ESD Test Conditions
ESD performance depends on a number of conditions.
Contact Maxim for a reliability report that documents test
setup, methodology, and results.
Human Body Model
Figure 5 shows the IEC 61000-4-2 Contact Discharge Model,
and Figure 6 shows the current waveform it generates when
discharged into a low impedance. This model consists of a
100pF capacitor charged to the ESD voltage of interest, which
is then discharged into the device through a 1.5kΩ resistor.
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MAX13053/MAX13054
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WAKE-UP
FILTER
WAKE-UP
MODE CONTROL
MUX
DOMINANT TIMEOUT DRIVER
THERMAL
SHUTDOWN
VCC
SPLIT
CANH
CANL
GND
RXD
STBY
TXD
MAX13050
R
R
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MAX13053/MAX13054
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Functional Diagrams
WAKE-UP
FILTER
WAKE-UP
MODE CONTROL
MUX
TIMEOUT AND SLOPE-
CONTROL MODE DRIVER
THERMAL
SHUTDOWN
VCC
SPLIT
CANH
CANL
GND
RXD
RS
TXD
MAX13052
R
R
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Functional Diagrams (continued)
WAKE-UP
FILTER
WAKE-UP
MODE CONTROL
MUX
DOMINANT TIMEOUT DRIVER
THERMAL
SHUTDOWN
VCC
CANH
CANL
GND
RXD
RS
TXD
MAX13053
S
REF
R
R
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Functional Diagrams (continued)
WAKE-UP
FILTER
WAKE-UP
MODE CONTROL
MUX
DOMINANT TIMEOUT DRIVER
DRIVER
THERMAL
SHUTDOWN
VCC
VCC2
VCC2
CANH
CANL
GND
RXD
STBY
TXD
MAX13054
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Functional Diagrams (continued)
PART SPLIT SLOPE
CONTROL
STANDBY
MODE
SILENT
MODE
3.3V
SUPPLY REF PIN-FOR-PIN
REPLACEMENT
MAX13050 Yes —Yes — — — TJA1040
MAX13052 Yes Yes Yes — — — PCA82C250/51
MAX13053 — — — Yes —Yes TJA1050,
AMIS-30660
MAX13054 — — Yes Yes —TLE6250v33,
CF163
Selector Guide
MAX13050 60Ω
60Ω
4.7nF
CANH
SPLIT
CANL
STBY
RXD
TXD
0.1µF VCC
CAN
CONTROLLER
GND
RXO
TXO
I/O
GND
VCC
MAX13053
CANH
CANL
REF
RXD
TXD
0.1µF VCC
CAN
CONTROLLER
GND
RXO
TXO
I/O
GND
VCC
S
MAX13054
CANH
CANL
LOGIC
RXD
TXD
0.1µF VCC
CAN
CONTROLLER
GND
RXO
TXO
I/O
GND
VCC
STBY
+3.3V
0.1mF
MAX13052 60Ω
60Ω
CANH
SPLIT
CANL
STBY
RXD
TXD
0.1µF VCC
CAN
CONTROLLER
GND
RXO
TXO
I/O
GND
VCC
4.7nF
TO BUS
TO BUS
60Ω
60Ω
4.7nF
TO BUS
60Ω
60Ω
4.7nF
TO BUS
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MAX13053/MAX13054
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Typical Operating Circuits
+Denotes a lead(Pb)-free/RoHS-compliant package.
PART TEMP RANGE PIN-PACKAGE
MAX13050ESA+ -40°C to +85°C 8 SO
MAX13050ASA+ -40°C to +125°C 8 SO
MAX13052ESA+ -40°C to +85°C 8 SO
MAX13052ASA+ -40°C to +125°C 8 SO
MAX13053ESA+ -40°C to +85°C 8 SO
MAX13053ASA+ -40°C to +125°C 8 SO
MAX13054ESA+ -40°C to +85°C 8 SO
MAX13054ASA+ -40°C to +125°C 8 SO
Ordering Information
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
8 SO S8M+5 21-0041 90-0096
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MAX13053/MAX13054
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Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
Chip Information
PROCESS: BiCMOS
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 2/05 Initial release —
1 2/13 Removed automotive part information and references throughout data sheet 1, 9–12, 19
2 1/16 Updated ESD report availability 5
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
MAX13050/MAX13052/
MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
© 2016 Maxim Integrated Products, Inc.
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Revision History
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