between the protocol controller and the physical wires
of the bus lines in a controller area network (CAN). The
devices provide differential transmit capability and switch
to single-mode if certain fault conditions occur. The
MAX3054/MAX3055/MAX3056 guarantee full wakeup
capability during failure modes.
The extended fault-protected voltage range of CANH and
CANL bus lines of ±80V. Current-limiting and thermalpro-
tection circuits protect the transmitter output stage against
overcurrent faults to prevent destruction of the transmitter
output stage. The CANH and CANL lines are also protect-
ed against electrical transients that may occur in rugged
environments.
The transceiver provides three low-power modes that
can be entered and exited through pins
STB
and EN. An
output INH pin can be used for deactivation of an external
voltage regulator.
The MAX3054/MAX3055/MAX3056 are designed to provide
optimal operation for a specified data rate. The MAX3054 is
ideal for high data rates of 250kbps. The MAX3055 is used
for data rates of 125kbps and the MAX3056 is designed for
40kbps applications. For 40kbps and 125kbps versions, a
built-in slope-control feature allows the use of unshielded
cables, and receiver input filters guarantee high noise immunity.
Features
●
±80V Fault Protection
●
Low RFI/Excellent EMC Immunity
●
Full Wake-Up Capability During Failure Modes
●
Bus Failure Management
●
Support Single-Wire Transmission Mode with Ground
Offset Voltages Up to 1.5V
●
Thermally Protected
●
Do Not Disturb the Bus Line when Unpowered
●
Low-Current Sleep and Standby Mode with Wake-Up
Through Bus Lines
●
Up to 250kbps Data Rate (MAX3054)
●
Pin and Functionally Compatible with TJA1054
Ordering Information
PART
TEMP RANGE
DATA RATE
250kbps
PIN-
PACKAGE
14 SO
MAX3054ASD+
-40°C to +125°C
MAX3055ASD+
-40°C to +125°C
MAX3056ASD+
-40°C to +125°C
+Lead-free/RoHS-compliant package
Slew control
14 SO
125kbps
Slew control
14 SO
40kbps
Applications
●
Industrial HVAC
Typical Operating Circuit
V
BATT
+12V
BATTERY
CAN CONTROLLER
+5V
2
3
5
STB
6
EN
4
1
Pin Configuration
TOP VIEW
INH 1
TXD
RXD
100nF
14 BATT
2
3
TXD RXD
7
ERR
INH
10
V
CC
GND
BATT
RTL
9
13
14
ERR
4
STB
5
EN 6
WAKE
7
MAX3054
MAX3055
MAX3056
13 GND
12 CANL
11 CANH
10 V
CC
9
8
RTL
RTH
WAKE
MAX305_
RTH
8
CAN BUS
CANH CANL
11
12
FAULT
TO 80V
SO
19-2687; Rev 1; 9/14
MAX3054/MAX3055/
MAX3056
Absolute Maximum Ratings
±80V Fault-Protected/Tolerant CAN Transceiver
(All Voltages are Referenced to GND)
Supply Voltage (V
CC
) ..............................................-0.3V to +6V
Battery Voltage (V
BATT
) ........................................-0.3V to +80V
TXD, RXD,
ERR, STB,
EN ....................... -0.3V to (V
CC
+ 0.3V)
CANH, CANL..........................................................-80V to +80V
RTH, RTL...............................................................-0.3V to +80V
RTH, RTL Current ..........................................................±180mA
WAKE
....................................................................-0.3V to +80V
INH ........................................................-0.3V to (V
BATT
+ 0.3V)
INH Current ......................................................................-0.5mA
Transient Voltage (ISO 7637) ................................ -200V, +200V
Continuous Power Dissipation (T
A
= +70°C)
14-Pin SO (derate 8.3mW/°C above +70°C)...............667mW
Operating Temperature Range ......................... -40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................ -65°C to +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
(V
CC
= +5V ±5%, V
BATT
= +5V to +42V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V, V
BATT
= 14V,
R1 = 100Ω, T
A
= +25°C.) (Notes 1, 2)
PARAMETER
VOLTAGE SUPPLIES
Dominant normal operating mode, no load,
TXD = 0
Supply Current
I
CC
Recessive normal operating mode,
TXD = V
CC
Low-power modes:
V
TXD
= V
CC
, V
BATT
= 14V
Battery Current
Battery Power on Flag Threshold
STB,
EN, AND TXD
High-Level Input Voltage
Low-Level Input Voltage
High-Level Input Current
Low-Level Input Current
Supply Voltage—Forced Standby
Mode (Fail-Safe)
RXD AND
ERR
High-Level Output Voltage
Low-Level Output Voltage
WAKE
Wake-Up Threshold Voltage
Low-Level Input Current
I
BATT
V
PWRON
V
IH
V
IL
I
IH
I
IL
V
FS
V
IN
= 4V
V
IN
= 1V
V
BATT
= 14V
STB
and EN
TXD
STB
and EN
TXD
-200
4
-800
2.75
9
-80
8
-320
-100
4.50
Low-power modes at V
TRL
= V
BATT
,
V
BATT
= V
WAKE
= V
INH
= 5V to 27V
Low-power modes
5
1.0
2.4
0.8
20
-25
16
4
3
54
30
mA
10
10
125
3.5
µA
µA
V
V
V
µA
µA
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
OH
V
OL
V
TH(WAKE
)
I
IL(WAKE)
I
OUT
= -1mA
I
OUT
= 7.5mA
V
STB
= 0V
V
WAKE
= 0V
V
CC
- 0.5
0
2.0
-10
2.7
-4
V
CC
0.9
3.4
-1
V
V
V
µA
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Maxim Integrated
│
2
MAX3054/MAX3055/
MAX3056
±80V Fault-Protected/Tolerant CAN Transceiver
DC Electrical Characteristics (continued)
(V
CC
= +5V ±5%, V
BATT
= +5V to +42V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V, V
BATT
= 14V,
R1 = 100Ω, T
A
= +25°C.) (Notes 1, 2)
PARAMETER
INH
High-Level Voltage Drop
Leakage Current
CANH, CANL
V
CC
= 5V, no failures and bus failures 1,
2, 5, 9
V
CC
= 4.75V to 5.25V, no failures and bus
failures 1, 2, 5, 9
No failures and bus failures 1, 2, 5, 9
TXD = V
CC
, RTH < 4kΩ
TXD = V
CC
, RTH < 4kΩ
TXD = 0V, R1 = 100Ω
TXD = 0V, R1 = 100Ω
V
CANH
= 0V, TXD = 0V
Low-power modes, V
CANH
= 0V, V
CC
= 5V
V
CANL
= 14V, TXD = 0V
Low-power modes, V
CANL
= 42V,
V
BATT
= 42V, RTL = open
V
CC
= 4.75V to 5.25V
Low-power modes
Low-power modes
Normal mode, V
CC
= 5V
Low-power modes
Low-power modes
V
CC
= 5V
V
CC
= 4.75V to 5.25V
0.30 x
V
CC
1.1
2.5
6.4
2.5
1.1
1.50
0.30 x
V
CC
10
7.3
3.2
1.8
1.70
-150
-10
75
130
20
0.37 x
V
CC
2.5
3.9
8.2
3.9
2.5
1.85
0.37 x
V
CC
V
V
V
V
V
-86
V
CC
- 0.2
V
CC
- 1.4
1.4
-3.5
-0.70 x
V
CC
18
200
-3.2
-2.9
-0.58 x
V
CC
V
ΔV
H
I
LEAK(INH)
INH = -0.18mA, standby mode
Sleep mode, V
INH
= 0V
0.8
5
V
µA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Differential Receiver Threshold
V
DIFF
HYST
V
OCH
V
OCL
V
OCHDOM
V
OCLDOM
I
O(CANH)
Differential Receiver Hysteresis
CANH Recessive Output Voltage
CANL Recessive Output Voltage
CANH Dominant Output Voltage
CANL Dominant Output Voltage
CANH Output Current
mV
mV
V
V
V
mA
µA
mA
µA
CANL Output Current
I
O(CANL)
Voltage Detection Threshold for
Short Circuit to Battery on CANH
Voltage Detection Threshold for
Short Circuit to GND on CANL
Voltage Detection Threshold for
Short Circuit to Battery on CANL
CANL Wake-Up Threshold
CANH Wake-Up Threshold
CANH Single-Ended Receiver
Threshold (Failures 4, 6, 7)
CANH Single-Ended Receiver
Hysteresis
V
DET(CANH)
V
DTG(CANL)
V
DET(CANL)
V
THL(WAKE)
V
THH(WAKE)
V
SE(CANH)
HYST
V
mV
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Maxim Integrated
│
3
MAX3054/MAX3055/
MAX3056
±80V Fault-Protected/Tolerant CAN Transceiver
DC Electrical Characteristics (continued)
(V
CC
= +5V ±5%, V
BATT
= +5V to +42V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V, V
BATT
= 14V,
R1 = 100Ω, T
A
= +25°C.) (Notes 1, 2)
PARAMETER
CANL Single-Ended Receiver
Threshold
CANL Single-Ended Receiver
Hysteresis
RTL AND RTH
RTL to V
CC
Switch
On-Resistance
RTH to V
CC
Switch
On-Resistance
Output Current on Pin RTL
RTL Pullup Current
RTH Pulldown
THERMAL SHUTDOWN
Shutdown Junction Temperature
Thermal Protection Hysteresis
T
J
T
JF6
T
HYS
For shutdown
During failure 6—switch off CANL only
165
140
15
°C
°C
R
SW(RTL)
R
SW(RTH)
I
O(RTL)
|I
PU(RTL)
|
|I
PU(RTH)
|
I
O
= -10mA
I
O
= 10mA
Low-power modes, V
RTL
= 0
Normal and failures 4, 6, 7, RTL = 0V
Normal and failures 3, 8, RTL = V
CC
-1.25
20
20
36
23
-0.65
107
106
100
100
-0.30
200
200
Ω
Ω
mA
µA
µA
SYMBOL
V
SE(CANL)
HYST
V
CC
= 5V
V
CC
= 4.75V to 5.25V
Failures 3, 8
CONDITIONS
MIN
3.15
0.63 x
V
CC
10
TYP
3.30
MAX
3.45
0.69 x
V
CC
V
UNITS
mV
AC Electrical Characteristics
(V
CC
= +5V ±5%, V
BATT
= +5V to +42V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V, V
BATT
= 14V,
R1 = 100Ω, T
A
= +25°C.) (Notes 1, 2)
PARAMETER
TRANSITION TIME
CANL and CANH Bus Output
Transition Time Recessive to
Dominant (10% to 90%)
CANL and CANH Bus Output
Transition Time Dominant to
Recessive (10% to 90%)
C
L
= 330pF, MAX3054 (250kbps)
t
(r-d)
C
L
= 220pF to 3.3nF, MAX3055 (125kbps)
C
L
= 560pF to 10nF, MAX3056 (40kbps)
C
L
= 330pF, MAX3054 (250kbps)
t(d-r)
C
L
= 220pF to 1nF, MAX3055 (125kbps)
C
L
= 560pF to 3.3nF, MAX3056 (40kbps)
No failures, C
L
= 330pF, MAX3054
(250kbps)
Bus failures 1, 2, 5, 9,
C
L
= 330pF, MAX3054 (250kbps)
No failures and bus failures 1, 2, 5, 9,
C
L
= 1nF, MAX3055 (125kbps)
No failures and bus failures 1, 2, 5, 9,
C
L
= 3.3nF, MAX3056 (40kbps)
200
0.5
100
0.7
130
1200
2.8
38
700
3.3
ns
µs
ns
µs
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PROPAGATION DELAY TXD TO RXD LOW—DOMINANT TRANSMISSION (FIGURES 1, 2)
600
ns
750
1.5
µs
4.7
Differential Reception
t
PDLD
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Maxim Integrated
│
4
MAX3054/MAX3055/
MAX3056
±80V Fault-Protected/Tolerant CAN Transceiver
AC Electrical Characteristics (continued)
(V
CC
= +5V ±5%, V
BATT
= +5V to +42V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V, V
BATT
= 14V,
R1 = 100Ω, T
A
= +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
Bus failures 3, 4, 6, 7, 8,
C
L
= 330pF, MAX3054 (250kbps)
Single-Ended Reception
t
PDLSE
Bus failures 3, 4, 6, 7, 8,
C
L
= 1nF, MAX3055 (125kbps)
Bus failures 3, 4, 6, 7, 8,
C
L
= 3.3nF, MAX3056 (40kbps)
PROPAGATION DELAY TXD TO RXD HIGH—RECESSIVE TRANSMISSION (FIGURES 1, 2)
1. Introduction
Electronic scales are gradually replacing traditional measuring tools like springs and balances in everyday life, such as electronic price computing scales and electronic weigh...[详细]
stm32/stm8
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