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AMI SEMICONDUCTOR

AMIS-4168X Datasheet Preview

AMIS-4168X Datasheet

Fault Tolerant CAN Transceiver

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AMIS-4168x Fault Tolerant CAN Transceiver
Data Sheet
1.0 General Description
The new AMIS-41682 and AMIS-41683 are interfaces between the protocol controller and the physical wires of the bus lines in a
control area network (CAN). AMIS-41683 is identical to the AMIS-41682 but has a true 3.3V digital interface to the CAN controller.
The device provides differential transmit capability but will switch in error conditions to a single-wire transmitter and/or receiver.
Initially it will be used for low speed applications, up to 125kBaud, in passenger cars.
Both AMIS-41682 and AMIS-41683 are implemented in I2T100 technology enabling both high-voltage analog circuitry and digital
functionality to co-exist on the same chip.
These products consolidate the expertise of AMIS for in-car multiplex transceivers and support together with AMIS-30522 (VAN),
AMIS-30660 and AMIS-30663 (CAN High Speed) and AMIS-30600 (LIN) another widely used physical layer.
2.0 Key Features
Fully compatible with ISO11898-3 standard
Optimized for in-car low-speed communication
o Baud rate up to 125kBaud
o Up to 32 nodes can be connected
o Due to built-in slope control function and a very good matching of the CANL and CANH bus outputs, this device realizes a
very low electromagnetic emission (EME)
o Fully integrated receiver filters
o Permanent dominant monitoring of transmit data input
o Differential receiver with wide common-mode range for high electromagnetic susceptibility (EMS) in normal- and low-power
modes
o True 3.3V digital I/O interface to CAN controller for AMIS-41683 only
Management in case of bus failure
o In the event of bus failures, automatic switching to single-wire mode, even when the CANH bus wire is short circuited to
VCC
o The device will automatically reset to differential mode if the bus failure is removed
o During failure modes there is full wake-up capability.
o Un-powered nodes do not disturb bus lines
o Bus errors and thermal shutdown activation is flagged on ERRB pin
Protection issues
www.DaotaSShhoeertt4cUir.ccuoimt proof to battery and ground
o Thermal protection
o The bus lines are protected against transients in an automotive environment
o An un-powered node does not disturb the bus lines
Support for low power modes
o Low current sleep and standby mode with wake-up via the bus lines
o Power-on flag on the output
o Two-edge sensitive wake-up input signal via pin WAKEB
IOs
o The un-powered chip cannot be parasitically supplied either from digital inputs nor from digital outputs.
3.0 Technical Characteristics
Table 1: Technical Characteristics
Symbol
VCANH
Vbat
Parameter
DC voltage at pin CANH, CANL
Voltage at pin Vbat
Conditions
0 < VCC < 5.25V; no time limit
Load-dump
Min Max Unit
-40 +40 V
+40 V
AMI Semiconductor – Rev. 2.0 – Feb. 07
www.amis.com
1




AMI SEMICONDUCTOR

AMIS-4168X Datasheet Preview

AMIS-4168X Datasheet

Fault Tolerant CAN Transceiver

No Preview Available !

AMIS-4168x Fault Tolerant CAN Transceiver
Data Sheet
4.0 Ordering Information
Table 2: Ordering information
Marketing Name
AMIS41682NGA
AMIS41683NGA
Package
SOIC-14 GREEN
SOIC-14 GREEN
5.0 Block Diagram
Temp.Range
-40°C…125°C
-40°C…125°C
INH 1
Vcc (*)
STB
EN
WAKE
5
6
7
Vcc (*)
TxD 2
GND 13
Timer
ERR 4
www.DataSheet4U.com
RxD 3
Failure
handling
VBAT
14
VCC
10
Mode &
wake-up
control
POR
Thermal
shutdown
Driver
control
9 RTL
11 CANH
12 CANL
8 RTH
Receiver
Filter
AMIS-4168x
(*) For AMIS-41682 pull up to Vcc.
For AMIS-41683 pull up to Vcc/2
AMIS-41682
VCC
ERR 4
Failure
handling
VCC
RxD 3
AMIS-41683
ERR 4
Failure
handling
RxD 3
PC20050610.3
AMI Semiconductor – Rev. 2.0 – Feb. 07
www.amis.com
Figure 1: Block Diagram
2


Part Number AMIS-4168X
Description Fault Tolerant CAN Transceiver
Maker AMI SEMICONDUCTOR
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AMIS-4168X Datasheet PDF






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