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MAX3056ASDMAXIMN/a2462avai80V Fault-Protected/Tolerant CAN Transceivers for In-Car Applications


MAX3056ASD ,80V Fault-Protected/Tolerant CAN Transceivers for In-Car ApplicationsELECTRICAL CHARACTERISTICS(V = 5V ±5%, V = +5V to +42V, T = T to T , unless otherwise noted. Typica ..
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MAX3056ASD
80V Fault-Protected/Tolerant CAN Transceivers for In-Car Applications
General Description
The MAX3054/MAX3055/MAX3056 are interfaces
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-wire mode if certain fault conditions
occur. The MAX3054/MAX3055/MAX3056 guarantee
full wake-up capability during failure modes.
The extended fault-protected voltage range of CANH
and CANL bus lines of ±80V allows for use in 42V
automotive applications. Current-limiting and thermal-
protection circuits protect the transmitter output stage
against overcurrent faults to prevent destruction of the
transmitter output stage. The CANH and CANL lines are
also protected against electrical transients that may occur
in an automotive environment.
The transceiver provides three low-power modes that
can be entered and exited through pins STBand EN.
An output INH pin can be used for deactivation of an
external voltage regulator.
The MAX3054/MAX3055/MAX3056 are designed to pro-
vide 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 the
40kbps and 125kbps versions, a built-in slope-control
feature allows the use of unshielded cables, and receiv-
er input filters guarantee high noise immunity.
Applications

Automotive
Features
Pin and Functionally Compatible with TJA1054±80V Fault Protection Suitable for 42V Battery
Systems
Low RFI/Excellent EMC ImmunityFull Wake-Up Capability During Failure ModesBus-Failure ManagementSupport Single-Wire Transmission Mode with
Ground Offset Voltages Up to 1.5V
Thermally ProtectedDo Not Disturb the Bus Line when UnpoweredLow-Current Sleep and Standby Mode with Wake-
Up Through Bus Lines
Up to 250kbps Data Rate (MAX3054)
MAX3054/MAX3055/MAX3056
±80V Fault-Protected/Tolerant CANransceivers for In-Car Applications
Pin Configuration
Ordering Information
Typical Operating Circuit

19-2687; Rev 0; 11/02
MAX3054/MAX3055/MAX3056
±80V Fault-Protected/Tolerant CAN
Transceivers for In-Car Applications
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS

(VCC= 5V ±5%, VBATT= +5V to +42V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= 5V, VBATT= 14V, R1 = 100Ω
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.
(All voltages are referenced to GND)
Supply Voltage (VCC)...............................................-0.3V to +6V
Battery Voltage (VBATT)..........................................-0.3V to +80V
TXD, RXD, ERR, STB, EN...........................-0.3V to (VCC+ 0.3V)
CANH, CANL ..........................................................-80V to +80V
RTH, RTL................................................................-0.3V to +80V
RTH, RTL Current...........................................................±180mAWAKE.....................................................................-0.3V to +80V
INH..........................................................-0.3V to (VBATT + 0.3V)
INH Current.......................................................................-0.5mA
Transient Voltage (ISO 7637)................................-200V, +200V*
Continuous Power Dissipation (TA= +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
*Pending completion of testing.
MAX3054/MAX3055/MAX3056
±80V Fault-Protected/Tolerant CANransceivers for In-Car Applications
DC ELECTRICAL CHARACTERISTICS (continued)

(VCC= 5V ±5%, VBATT= +5V to +42V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= 5V, VBATT= 14V, R1 = 100Ω
(Figure 2), TA= +25°C.) (Notes 1, 2)
MAX3054/MAX3055/MAX3056
±80V Fault-Protected/Tolerant CAN
Transceivers for In-Car Applications
DC ELECTRICAL CHARACTERISTICS (continued)

(VCC= 5V ±5%, VBATT= +5V to +42V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= 5V, VBATT= 14V, R1 = 100Ω
AC ELECTRICAL CHARACTERISTICS

(VCC= 5V ±5%, VBATT= +5V to +42V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= 5V, VBATT= 14V, R1 = 100Ω
MAX3054/MAX3055/MAX3056
±80V Fault-Protected/Tolerant CANransceivers for In-Car Applications
AC ELECTRICAL CHARACTERISTICS (continued)

(VCC= 5V ±5%, VBATT= +5V to +42V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= 5V, VBATT= 14V, R1 = 100Ω
MAX3054/MAX3055/MAX3056
±80V Fault-Protected/Tolerant CAN
Transceivers for In-Car Applications
Note 1:
All currents into the device are positive; all currents out of the device are negative. All voltages are referenced to device
ground, unless otherwise noted.
Note 2:
Failure modes 1 through 9 are explained in Table1 and in the Detailed Descriptionsection.
MAX3054/MAX3055/MAX3056
±80V Fault-Protected/Tolerant CANransceivers for In-Car Applications

Figure2. Test Circuit for Dynamic Characteristics
Figure1. Timing Diagram for Dynamic Characteristics
Figure3. Test Circuit for Typical Operating Characteristics
Figure4. Test Circuit for Automotive Transients
Timing Diagram/Test Circuits
MAX3054/MAX3055/MAX3056
±80V Fault-Protected/Tolerant CAN
Transceivers for In-Car Applications
Typical Operating Characteristics

(VCC= 5V, VBATT= +12V, RTL = RTH = 511Ω, R1 = 125Ω, and TA= +25°C; see Figure 3.)
MAX3054/MAX3055/MAX3056
±80V Fault-Protected/Tolerant CANransceivers for In-Car Applications
MAX3056 DRIVER PROPAGATION
DELAY vs. TEMPERATURE

MAX3054/MAX3055/MAX3056 toc10
TEMPERATURE (°C)
DRIVER PROPAGATION DELAY (5520-15-50125
RECEIVER OUTPUT LOW
vs. OUTPUT CURRENT
MAX3054/MAX3055/MAX3056 toc11
OUTPUT CURRENT (mA)
VOLTAGE RXD (V)2015105
RECEIVER OUTPUT HIGH
vs. OUTPUT CURRENT
MAX3054/MAX3055/MAX3056 toc12
OUTPUT CURRENT (mA)
VOLTAGE RXD (V)12963
DIFFERENTIAL VOLTAGE
vs. LOAD RESISTANCE
MAX3054/MAX3055/MAX3056 toc13
LOAD RESISTANCE (Ω)
DIFFERENTIAL VOLTAGE (V)
MAX3054
RECEIVER PROPAGATION DELAY
MAX3054/MAX3055/MAX3056 toc14
200ns/div
DIFFERENTIAL
INPUT
5V/div
RXD
5V/div
MAX3055
RECEIVER PROPAGATION DELAY

MAX3054/MAX3055/MAX3056 toc15
400ns/div
DIFFERENTIAL
INPUT
5V/div
RXD
5V/div
Typical Operating Characteristics (continued)

(VCC= 5V, VBATT= +12V, RTL = RTH = 511Ω, R1 = 125Ω, and TA= +25°C; see Figure 3.)
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