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MAX3056ASD

更新时间: 2024-11-08 22:57:59
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描述
【80V Fault-Protected/Tolerant CAN Transceivers for In-Car Applications

MAX3056ASD 数据手册

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19-2687; Rev 0; 11/02  
±±0ꢀ Faultꢁ-rotected/Tolerant CAN  
Transceivers for InꢁCar Applications  
General Description  
Features  
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.  
o Pin and Functionally Compatible with TJA1054  
o ±±0ꢀ Fault Pꢁotection ꢂuitable ꢃoꢁ 4ꢄꢀ ꢅatteꢁy  
ꢂystems  
o Low RFI/Excellent EMC Immunity  
o Full Wake-Up Capability Duꢁing Failuꢁe Modes  
o ꢅus-Failuꢁe Management  
The extended fault-protected voltage range of CANH  
and CANL bus lines of ±±0ꢀ allows for use in 4ꢁꢀ  
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.  
o ꢂuppoꢁt ꢂingle-Wiꢁe Tꢁansmission Mode with  
Gꢁound Oꢃꢃset ꢀoltages Up to 1.5ꢀ  
o Theꢁmally Pꢁotected  
o Do Not Distuꢁb the ꢅus Line when Unpoweꢁed  
o Low-Cuꢁꢁent ꢂleep and ꢂtandby Mode with Wake-  
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.  
Up Thꢁough ꢅus Lines  
o Up to ꢄ50kbps Data Rate (MAX3054)  
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 ꢁ50kbps. The  
MAX3055 is used for data rates of 1ꢁ5kbps and the  
MAX3056 is designed for 40kbps applications. For the  
40kbps and 1ꢁ5kbps versions, a built-in slope-control  
feature allows the use of unshielded cables, and receiv-  
er input filters guarantee high noise immunity.  
Ordering Information  
PIN-  
PACKAGE  
PART  
TEMP RANGE DATA RATE  
MAX3054ASD -40°C to +1ꢁ5°C  
MAX3055ASD -40°C to +1ꢁ5°C  
ꢁ50kbps  
14 SO  
Slew control  
1ꢁ5kbps  
14 SO  
14 SO  
Slew control  
40kbps  
MAX3056ASD -40°C to +1ꢁ5°C  
Applications  
Automotive  
Typical Operating Circuit  
-in Configuration  
V
BATT  
+12V  
TOP VIEW  
BATTERY  
CAN CONTROLLER  
INH  
TXD  
RXD  
ERR  
1
2
3
4
5
6
7
14 BATT  
13 GND  
12 CANL  
+5V  
2
3
5
6
4
1
TXD RXD STB EN ERR INH  
10  
13  
11 CANH  
V
MAX3054  
MAX3055  
MAX3056  
CC  
100nF  
7
STB  
10  
9
V
CC  
MAX305_  
WAKE  
GND  
EN  
RTL  
RTH  
14  
BATT  
WAKE  
8
RTL  
RTH  
8
CANH CANL  
11  
12  
9
FAULT  
TO 80V  
ꢂO  
CAN BUS  
________________________________________________________________ Maxim Integrated Products  
1
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.  

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