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MAX3054 Datasheet

  • MAX3054

  • ?à80V Fault- Protected/Tolerant CAN Transceivers for In-Car...

  • Maxim   Maxim

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19-2687; Rev 0; 11/02
鹵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 鹵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
STB
and 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.
Features
o
Pin and Functionally Compatible with TJA1054
o
鹵80V Fault Protection Suitable for 42V Battery
Systems
o
Low RFI/Excellent EMC Immunity
o
Full Wake-Up Capability During Failure Modes
o
Bus-Failure Management
o
Support Single-Wire Transmission Mode with
Ground Offset Voltages Up to 1.5V
o
Thermally Protected
o
Do Not Disturb the Bus Line when Unpowered
o
Low-Current Sleep and Standby Mode with Wake-
Up Through Bus Lines
o
Up to 250kbps Data Rate (MAX3054)
MAX3054/MAX3055/MAX3056
Ordering Information
PART
MAX3054ASD
MAX3055ASD
MAX3056ASD
TEMP RANGE
-40擄C to +125擄C
-40擄C to +125擄C
-40擄C to +125擄C
DATA RATE
250kbps
Slew control
125kbps
Slew control
40kbps
PIN-
PACKAGE
14 SO
14 SO
14 SO
Applications
Automotive
Typical Operating Circuit
V
BATT
+12V
BATTERY
CAN CONTROLLER
+5V
2
3
5
STB
6
EN
4
ERR
1
INH
10
V
CC
GND
BATT
RTL
9
13
14
100nF
Pin Configuration
TOP VIEW
INH 1
TXD
RXD
2
3
14 BATT
13 GND
12 CANL
TXD RXD
ERR 4
STB 5
EN 6
7
WAKE
MAX305_
MAX3054
MAX3055
MAX3056
11 CANH
10 V
CC
9
8
RTL
RTH
RTH
8
CAN BUS
CANH CANL
11
12
WAKE 7
FAULT
TO
鹵80V
SO
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.

MAX3054 PDF文件相關型號

MAX3055,MAX3055ASD,MAX3056,MAX3056ASD

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