Maxim MAX13053ESA Industry-standard high-speed can transceivers with â±80v fault protection Datasheet

19-3598; Rev 0; 2/05
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
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 automotive and 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 +12V/+42V battery, automotive, and 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 automotive and 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 commonmode 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.
Applications
+12V and +42V
Automotive
Medium- and Heavy-Duty
Truck Systems
DeviceNet Nodes
Industrial
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)
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX13050ESA
-40°C to +85°C
8 SO
MAX13050ASA/AUT*
-40°C to +125°C
8 SO
MAX13052ESA
-40°C to +85°C
8 SO
MAX13052ASA/AUT*
-40°C to +125°C
8 SO
MAX13053ESA
-40°C to +85°C
8 SO
MAX13053ASA/AUT*
-40°C to +125°C
8 SO
MAX13054ESA
-40°C to +85°C
8 SO
MAX13054ASA/AUT*
-40°C to +125°C
8 SO
*AUT denotes introduction to AECQ100 specifications.
Pin Configurations, Functional Diagrams, and Typical
Operating Circuits appear at end of data sheet.
DeviceNet is a registered trademark of the Open DeviceNet
Vendor Association.
Selector Guide
PART
SPLIT
SLOPE
CONTROL
STANDBY
MODE
SILENT
MODE
3.3V
SUPPLY
REF
PIN-FOR-PIN
REPLACEMENT
MAX13050
Yes
—
Yes
—
—
—
TJA1040
MAX13052
Yes
Yes
Yes
—
—
—
PCA82C250/5-1
MAX13053
—
—
—
Yes
—
Yes
TJA1050,
AMIS-30660
MAX13054
—
—
Yes
Yes
—
TLE6250v33,
CF163
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
MAX13050/MAX13052/MAX13053/MAX13054
General Description
MAX13050/MAX13052/MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
ABSOLUTE MAXIMUM RATINGS
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
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
Dominant, RL = 60Ω
VCC Supply Current
ICC
VCC2 Supply Current
ICC2
Recessive
Silent Mode
Thermal-Shutdown Threshold
ISTANDBY
ISILENT
UNITS
72
MAX13050/MAX13052/
MAX13053
12.5
MAX13054
Standby Current
MAX
mA
10
MAX13054, TXD = VCC2 or floating
15
MAX13052
25
MAX13050/MAX13054
11
MAX13053
12.5
TSH
Thermal-Shutdown Hysteresis
µA
µA
mA
+165
°C
13
°C
INPUT LEVELS (TXD, STBY, S)
2
High-Level Input Voltage
VIH
Low-Level Input Voltage
VIL
High-Level Input Current
IIH
Low-Level Input Current
IIL
TXD, STBY (MAX13054)
V
0.7 x
VCC2
0.8
Input Capacitance
0.3 x
VCC2
TXD, STBY (MAX13054)
VTXD = VCC, VTXD = VCC2 (MAX13054)
-5
+5
VSTBY = VCC, VS = VCC (MAX13053)
-5
+5
VTXD = GND
-300
-100
VSTBY = GND, VS = GND (MAX13053)
-10
-1
CIN
10
V
µA
µA
pF
CANH, CANL TRANSMITTER
Recessive Bus Voltage
VCANH,
VCANL
Normal mode, VTXD = VCC, no load
Recessive Output Current
ICANH,
ICANL
VCANH, VCANL = ±76V
-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
∆DOM
VTXD = 0, dominant, TA = +25°C,
(VCANH + VCANL) - VCC
-100
+150
mV
Matching Between CANH and
CANL Output Voltage
2
Standby mode, no load
2
3
V
-100
+100
mV
±3
_______________________________________________________________________________________
mA
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
(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
Differential Output
(VCANH - VCANL)
VDIFF
CANH Short-Circuit Current
ICANHSC
CANL Short-Circuit Current
ICANLSC
CONDITIONS
MIN
TYP
MAX
UNITS
Dominant, VTXD = 0, 45Ω ≤ RL ≤ 60Ω
1.5
3.0
V
Recessive, VTXD = VCC, no load
-50
+50
mV
VCANH = 0, VTXD = 0
-100
-70
-45
mA
VCANL = 5V, VTXD = 0
40
60
90
VCANL = 40V, VTXD = 0 (Note 2)
40
60
90
VCANL = 76V, VTXD = 0
mA
63
RXD OUTPUT LEVELS
RXD High-Output-Voltage Level
I = -100µA
0.8 x
VCC
VCC
I = -100µA (MAX13054)
0.8 x
VCC2
VCC2
VOH
RXD Low-Output-Voltage Level
VOL
V
I = 5mA
0.4
V
0.7 x
VCC
V
COMMON-MODE STABILIZATION (SPLIT) and REF
Output Voltage
VSPLIT
Leakage Current
ILEAK
REF Output Voltage
VREF
Normal mode,
-500µA ≤ ISPLIT ≤ 500µA
0.3 x
VCC
Standby mode, -40V ≤ VSPLIT ≤ +40V
20
Standby mode, -76V ≤ VSPLIT ≤ +76V
50
-50µA ≤ IREF ≤ +50µA (MAX13053)
0.45 x
VCC
0.55 x
VCC
µA
V
DC BUS RECEIVER (VTXD = VCC, CANH and CANL externally driven)
Differential Input Voltage
Differential Input Hysteresis
VDIFF
0.5
MAX13050/MAX13052/MAX13054
-12V ≤ VCM ≤ +12V (standby mode)
0.50
VDIFF(HYST) Normal mode, -12V ≤ VCM ≤ +12V
Common-Mode Input Resistance
Matching Between CANH and
CANL Common-Mode Input
Resistance
-12V ≤ VCM ≤ +12V
RICM
Normal or standby mode,
VCANH = VCANL = ±12V
RIC_MATCH VCANH = VCANL
Differential Input Resistance
Common-Mode Input
Capacitance
RDIFF
CIM
Differential Input Capacitance
Input Leakage Current
Normal or standby mode,
VCANH - VCANL = 1V
1.15
V
mV
15
35
kΩ
-3
+3
%
25
75
kΩ
VTXD = VCC
VCC = 0, VCANH = VCANL = 5V
0.9
70
20
VTXD = VCC
ILI
0.7
pF
10
-5
pF
+5
µA
0.3 x
VCC
V
SLOPE CONTROL RS ( MAX13052)
Input Voltage for High Speed
VIL_RS
_______________________________________________________________________________________
3
MAX13050/MAX13052/MAX13053/MAX13054
DC ELECTRICAL CHARACTERISTICS (continued)
MAX13050/MAX13052/MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
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)
PARAMETER
SYMBOL
Input Voltage for Standby
VIH_RS
Slope-Control Mode Voltage
VSLOPE
High-Speed Mode Current
IIL_RS
CONDITIONS
MIN
MAX
0.75 x
VCC
-200µA < IRS < 10µA
0.4 x
VCC
VRS = 0
-500
IEC 61000-4-2 Contact Discharge Method
per IBEE test facility (Note 3)
ESD Protection
TYP
UNITS
V
0.6 x
VCC
V
µA
±8
kV
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.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
66
110
ns
61
95
Delay TXD to Bus Active
tONTXD
Figure 1 (Note 4)
Delay TXD to Bus Inactive
tOFFTXD
Figure 1
(Note 4)
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
RRS = 24kΩ
(500kbps)
280
450
ns
RRS = 100kΩ
(125kbps)
0.82
1.6
RRS = 180kΩ
(62.5kbps)
1.37
5
RRS = 24kΩ
(500kbps)
386
600
RRS = 100kΩ
(125kbps)
0.74
1.6
RRS = 180kΩ
(62.5kbps)
0.97
5
RRS = 24kΩ
(500kbps)
10
RRS = 100kΩ
(125kbps)
2.7
RRS = 180kΩ
(62.5kbps)
1.6
MAX13050/MAX13052/
MAX13053
MAX13054
Delay TXD to RXD Active
(Dominant Loop Delay) Slew-Rate
Controlled
Delay TXD to RXD Inactive (Loop
Delay) Slew-Rate Controlled
tONLOOP-S
MAX13052
ns
µs
tOFFLOOP-S MAX13052
ns
µs
Differential Output Slew Rate
4
|SR|
MAX13052
_______________________________________________________________________________________
V/µs
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
(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
Dominant Time for Wake-Up with
Bus
CONDITIONS
tWAKE
Standby mode, VDIFF = +3V, Figure 2
Delay STBY to Normal Mode
(DOMINANT)
tSTBYNORM
TXD = 0 (MAX13050, MAX13054)
FROM STBY falling to CANH - CANL = 0.9V
TXD Dominant Timeout
tDOM
VTXD = 0
MIN
TYP
MAX
UNITS
0.75
1.5
3.00
µs
10
µs
1.0
ms
5
0.3
0.6
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: MAX13050 tested by IBEE test facility. Please contact factory for report. MAX13052/MAX13053/MAX13054 are pending ESD
evaluation.
Note 4: For the MAX13052, VRS = 0.
Timing Diagrams
TXD
DOMINANT
0.9V
0.5V
RECESSIVE
VDIFF
RXD
0.7 x VCC OR 0.7 x VCC2
0.3 x VCC OR 0.3 x VCC2
tONTXD
tOFFTXD
tONRXD
tONLOOP
tOFFRXD
tOFFLOOP
Figure 1. Timing Diagram
_______________________________________________________________________________________
5
MAX13050/MAX13052/MAX13053/MAX13054
TIMING CHARACTERISTICS (continued)
Timing Diagrams
STANDBY MODE
DOMINANT
0.9V
VDIFF
RXD
tWAKE
Figure 2. Timing Diagram for Standby and Wake-Up Signal
Typical Operating Characteristics
(VCC = +5V, RL = 60Ω, CL = 100pF, VCC2 = +3.3V, and TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. DATA RATE
20
15
DOMINANT
30
25
TA = -40°C
TA = +25°C
0
MAX13052
19.0
18.0
17.0
16.0
15.0
14.0
13.0
12.0
11.0
RECESSIVE
0
MAX13050 toc03
TA = +125°C
20
5
15
20 40 60 80 100 120 140 160 180 200
RRS (kΩ)
6
35
20.0
STANDBY SUPPLY CURRENT (µA)
25
SUPPLY CURRENT (mA)
MAX13052
10
40
MAX13050 toc01
30
STANDBY SUPPLY CURRENT
vs. TEMPERATURE (RS = VCC)
MAX13050 toc02
SLEW RATE
vs. RRS AT 100kbps
SLEW RATE (V/µs)
MAX13050/MAX13052/MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
10.0
0 100 200 300 400 500 600 700 800 900 1000
DATA RATE (kbps)
-50
-25
0
25
50
75
TEMPERATURE (°C)
_______________________________________________________________________________________
100
125
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
RECEIVER PROPAGATION DELAY
vs. TEMPERATURE
7.0
6.5
6.0
5.5
5.0
4.5
60
50
RECESSIVE
40
30
20
180
160
140
120
100
60
40
0
25
50
75
100
125
RECESSIVE
20
0
0
-25
DOMINANT
80
10
-50
-50
-25
0
25
50
75
100
-50
125
-25
0
25
50
75
100
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
REF VOLTAGE vs. REG OUTPUT CURRENT
SPLIT LEAKAGE CURRENT vs. TEMPERATURE
RECEIVER OUTPUT LOW
vs. OUTPUT CURRENT
2.54
TA = +25°C
TA = +125°C
2.52
2.50
2.48
2.46
2.44
0.1
0.01
-50
10 15 20 25 30 35 40 45 50
-25
0
25
50
75
100
0
125
5
10
15
20
TEMPERATURE (°C)
OUTPUT CURRENT (mA)
RECEIVER OUTPUT HIGH
vs. OUTPUT CURRENT
RECEIVER OUTPUT HIGH
vs. OUTPUT CURRENT
RECEIVER OUTPUT LOW
vs. OUTPUT CURRENT
200
TA = +25°C
150
100
TA = -40°C
50
0
1.6
TA = +25°C
1.4
TA = +125°C
1.2
1.0
0.8
0.6
0.4
TA = -40°C
200
300
400
OUTPUT CURRENT (µA)
500
600
200.0
TA = +125°C
TA = +25°C
150.0
100.0
TA = -40°C
50.0
0.2
0
100
MAX13054
VCC2 = +3.3V
250.0
VOLTAGE RXD (mV)
TA = +125°C
MAX13050/MAX13052/MAX13053
1.8
300.0
MAX13050 toc11
250
2.0
RECEIVER OUTPUT HIGH (VCC - RXD) (V)
MAX13054
0
TA = -40°C
REG OUTPUT CURRENT (µA)
MAX13050 toc10
300
5
TA = +125°C
0.6
0
0.0001
0
TA = +25°C
0.8
0.2
TA = -40°C
2.40
1.0
0.4
0.001
2.42
MAX13050 toc09
1
LEAKAGE CURRENT (µA)
2.56
MAX13050/MAX13052/MAX13053
1.2
VOLTAGE RXD (V)
2.58
125
1.4
MAX13050 toc08
10
MAX13050 toc07
2.60
REF VOLTAGE (V)
DOMINANT
70
200
MAX13050 toc06
80
4.0
RECEIVER OUTPUT HIGH (VCC2 - RXD) (mV)
DATA RATE = 100kbps
90
MAX13050 toc12
7.5
100
MAX13050 toc04
MAX13050
MAX13054
RECEIVER PROPAGATION DELAY (ns)
MAX13050 toc04
STANDBY SUPPLY CURRENT (µA)
8.0
DRIVER PROPAGATION DELAY
vs. TEMPERATURE
DRIVER PROPAGATION DELAY (ns)
STANDBY SUPPLY CURRENT
vs. TEMPERATURE (STBY = VCC)
0
0
1
2
3
4
5
6
OUTPUT CURRENT (mA)
7
8
0
1
2
3
4
5
OUTPUT CURRENT (mA)
_______________________________________________________________________________________
7
MAX13050/MAX13052/MAX13053/MAX13054
Typical Operating Characteristics
(VCC = +5V, RL = 60Ω, CL = 100pF, VCC2 = +3.3V, and TA = +25°C, unless otherwise noted.)
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
RECEIVER PROPAGATION DELAY
MAX13050 toc13
3.0
MAX13054 WAVEFORM
MAX13051 toc14
3.5
DIFFERENTIAL VOLTAGE (V)
TA = -40°C
MAX13050 toc15
VDIFF
(1V/div)
TXD
2V/div
TA = +125°C
2.5
TA = +25°C
2.0
VDIFF
2V/div
1.5
1.0
RXD
(2V/div)
RXD
2V/div
0.5
0
20
60
100
140
180
220
260
300
200ns/div
200ns
DIFFERENTIAL LOAD RL (Ω)
MAX13051 toc17
MAX13051 toc16
MAX13052
LOOPBACK PROPAGATION DELAY
vs. RRS
DRIVER PROPAGATION DELAY
1.4
MAX13052
TXD
(5V/div)
TXD
(2V/div)
VDIFF
(2V/div)
RRS = 24kΩ
VDIFF
(2V/div)
RRS = 75kΩ
VDIFF
(1V/div)
VDIFF
(2V/div)
RRS = 100kΩ
1.00µs
MAX13051 toc18
DRIVER PROPAGATION DELAY,
(RRS = 24kΩ, 75kΩ AND 100kΩ)
LOOPBACK PROPAGATION DELAY (µs)
MAX13050/MAX13052/MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
1.2
1.0
RECESSIVE
0.8
0.6
DOMINANT
0.4
0.2
0
200ns/div
0
20 40 60 80 100 120 140 160 180 200
RRS (kΩ)
8
_______________________________________________________________________________________
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
MAX13050
MAX13052
MAX13053
MAX13054
PIN
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
—
—
—
5
NAME
VCC2
FUNCTION
Silent-Mode Input. Drive S low to enable TXD and to operate in high-speed
mode. Drive S high to disable the transmitter.
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.
Detailed Description
The MAX13050/MAX13052/MAX13053/MAX13054
±80V fault-protected CAN transceivers are ideal for
automotive and 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 +12V and +42V
battery automotive and DeviceNet applications, requiring data rates up to 1Mbps.
The MAX13050/MAX13052/MAX13053/MAX13054
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
_______________________________________________________________________________________
9
MAX13050/MAX13052/MAX13053/MAX13054
Pin Description
MAX13050/MAX13052/MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
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 MAX13050/MAX13052/MAX13053/MAX13054 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 automotive and industrial environments.
±80V Fault Protected
The MAX13050/MAX13052/MAX13053/MAX13054 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 MAX13050/MAX13052/MAX13053/MAX13054 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 slopecontrol mode (Table 1). In slope-control mode, CANH
and CANL slew rates are controlled by the resistor
(16kΩ ≤ R RS ≤ 200kΩ) connected between RS and
GND. Controlling the rise and fall slopes reduces highfrequency EMI and allows the use of an unshieldedtwisted pair or a parallel pair of wires as bus lines. The
slew rate can be approximated using the formula below:
SR(V / µs) =
250
RRS
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.
10
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
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 V CC 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 commonmode voltage by connecting SPLIT to the center tap of
the split termination, see the Typical Operating Circuit.
In standby mode or when VCC = 0, SPLIT becomes
high impedance.
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
______________________________________________________________________________________
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
TXD
RS
CANH
CANL
BUS STATE
RXD
Low
VRS ≤ 0.75 x VCC
High
Low
Dominant
Low
High or Float
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
Table 3. Transmitter and Receiver Truth Table
(MAX13053)
TXD
RS
CANH
CANL
BUS STATE
RXD
Low
VS < 0.8V
High
Low
Dominant
Low
High or Float
VS < 0.8V
VCC / 2
VCC / 2
Recessive
High
X
VS > 2V
VCC / 2
VCC / 2
Recessive
High
(MAX13050/MAX13054)
TXD
STBY
CANH
CANL
BUS STATE
RXD
Low
VSTBY ≤ 0.8V
*VSTBY ≤ 0.3 x VCC2
High
Low
Dominant
Low
High or Float
VSTBY ≤ 0.8V
*VSTBY ≤ 0.3 x VCC2
VCC / 2
VCC / 2
Recessive
High
X
VSTBY ≥ 2V
*VSTBY ≥ 0.7 x VCC2
RICM to GND
RICM to GND
Recessive
High
*For the MAX13054
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.
tDOM
TRANSMITTER
ENABLED
+3.3V Logic Compatibility (MAX13054)
TXD
VCANH - VCANL
TRANSMITTER
DISABLED
Figure 3. Transmitter Dominant Timeout Timing Diagram
(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 singleended output (RXD) to the CAN controller. It consists of
a comparator that senses the difference V DIFF =
(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.
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,
______________________________________________________________________________________
11
MAX13050/MAX13052/MAX13053/MAX13054
Table 2. Transmitter and Receiver Truth Table (MAX13052)
MAX13052
TWISTED PAIR
CANH
RL = 60Ω
TXD
RXD
RL = 120Ω
TRANSCEIVER 3
SPLIT
RL = 60Ω
CANL
STUB LENGTH
KEEP AS SHORT
AS POSSIBLE
TRANSCEIVER 1
TRANSCEIVER 2
Figure 4. Multiple Receivers Connected to CAN Bus
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.
Applications Information
RC
50MΩ to 100MΩ
CHARGE-CURRENTLIMIT RESISTOR
HIGHVOLTAGE
DC
SOURCE
Cs
150pF
RD
330kΩ
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
DEVICE
UNDER
TEST
Reduced EMI and Reflections
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 capaci12
Figure 5. IEC 61000-4-2 Contact Discharge ESD Test Model
I
100%
90%
I PEAK
MAX13050/MAX13052/MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
10%
t r = 0.7ns to 1ns
t
30ns
60ns
Figure 6. IEC 61000-4-2 ESD Test Model Current Waveform
______________________________________________________________________________________
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
Power Supply and Bypassing
The MAX13050/MAX13052/MAX13053/MAX13054
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.
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.
ESD Protection
Human Body Model
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/
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.
______________________________________________________________________________________
13
MAX13050/MAX13052/MAX13053/MAX13054
tance. Place the resistor at RS as close as possible to
the MAX13052 to minimize any possible noise coupling
at the input.
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
MAX13050/MAX13052/MAX13053/MAX13054
Functional Diagrams
VCC
MAX13050
R
SPLIT
THERMAL
SHUTDOWN
TXD
DOMINANT TIMEOUT
R
DRIVER
CANH
CANL
WAKE-UP
MODE CONTROL
STBY
GND
WAKE-UP
FILTER
RXD
14
MUX
______________________________________________________________________________________
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
VCC
MAX13052
R
SPLIT
THERMAL
SHUTDOWN
TXD
TIMEOUT AND SLOPECONTROL MODE
DRIVER
R
CANH
CANL
RS
WAKE-UP
MODE CONTROL
GND
WAKE-UP
FILTER
RXD
MUX
______________________________________________________________________________________
15
MAX13050/MAX13052/MAX13053/MAX13054
Functional Diagrams (continued)
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
MAX13050/MAX13052/MAX13053/MAX13054
Functional Diagrams (continued)
VCC
MAX13053
R
REF
R
THERMAL
SHUTDOWN
S
TXD
DRIVER
DOMINANT TIMEOUT
CANH
CANL
RS
WAKE-UP
MODE CONTROL
GND
WAKE-UP
FILTER
RXD
16
MUX
______________________________________________________________________________________
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
VCC
MAX13054
THERMAL
SHUTDOWN
VCC2
CANH
DOMINANT TIMEOUT
TXD
DRIVER
CANL
WAKE-UP
MODE CONTROL
STBY
GND
WAKE-UP
FILTER
MUX
VCC2
RXD
DRIVER
______________________________________________________________________________________
17
MAX13050/MAX13052/MAX13053/MAX13054
Functional Diagrams (continued)
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
MAX13050/MAX13052/MAX13053/MAX13054
Typical Operating Circuits
0.1µF VCC
0.1µF VCC
TO BUS
TO BUS
CAN
CONTROLLER
TXO
MAX13050
TXD
CAN
CONTROLLER
TXO
60Ω
SPLIT
RXD
RXO
CANH
VCC
CANH
VCC
MAX13052
TXD
SPLIT
RXD
RXO
4.7nF
4.7nF
60Ω
60Ω
GND
STBY
I/O
STBY
I/O
60Ω
GND
GND
CANL
GND
0.1µF VCC
CANL
0.1µF VCC
TO BUS
CAN
CONTROLLER
TXO
RXO
I/O
TO BUS
CANH
VCC
MAX13053
TXD
CAN
CONTROLLER
TXO
60Ω
RXD
60Ω
18
GND
CANL
60Ω
RXD
4.7nF
STBY
I/O
60Ω
+3.3V
REF
GND
MAX13054
TXD
RXO
4.7nF
S
CANH
VCC
LOGIC
GND
0.1µF
GND
CANL
______________________________________________________________________________________
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
TOP VIEW
TXD 1
GND
2
8
STBY
TXD 1
7
CANH
GND
2
8
RS
7
CANH
MAX13052
MAX13050
3
6
CANL
VCC
3
6
CANL
RXD 4
5
SPLIT
RXD 4
5
SPLIT
8
STBY
7
CANH
VCC
SO
TXD 1
GND
2
SO
8
S
TXD 1
7
CANH
GND
2
MAX13054
MAX13053
3
6
CANL
VCC
3
6
CANL
RXD 4
5
REF
RXD 4
5
VCC2
VCC
SO
SO
Chip
.
TRANSISTOR COUNT: 1400
PROCESS: BiCMOS
Information
______________________________________________________________________________________
19
MAX13050/MAX13052/MAX13053/MAX13054
Pin Configurations
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
DIM
A
A1
B
C
e
E
H
L
N
E
H
INCHES
MILLIMETERS
MAX
MIN
0.069
0.053
0.010
0.004
0.014
0.019
0.007
0.010
0.050 BSC
0.150
0.157
0.228
0.244
0.016
0.050
MAX
MIN
1.35
1.75
0.10
0.25
0.35
0.49
0.19
0.25
1.27 BSC
3.80
4.00
5.80
6.20
0.40
SOICN .EPS
MAX13050/MAX13052/MAX13053/MAX13054
Industry-Standard High-Speed CAN
Transceivers with ±80V Fault Protection
1.27
VARIATIONS:
1
INCHES
TOP VIEW
DIM
D
D
D
MIN
0.189
0.337
0.386
MAX
0.197
0.344
0.394
MILLIMETERS
MIN
4.80
8.55
9.80
MAX
5.00
8.75
10.00
N MS012
8
AA
14
AB
16
AC
D
A
B
e
C
0∞-8∞
A1
L
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL
DOCUMENT CONTROL NO.
21-0041
REV.
B
1
1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2005 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products, Inc.