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AMIS-42700 Datasheet

Dual High Speed CAN Transceiver

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AMIS-42700
Dual High Speed CAN
Transceiver
General Description
Controller area network (CAN) is a serial communication protocol,
which supports distributed realtime control and multiplexing with
high safety level. Typical applications of CANbased networks can be
found in automotive and industrial environments.
The AMIS42700 DualCAN transceiver is the interface between
up to two physical bus lines and the protocol controller and will be
used for serial data interchange between different electronic units at
more than one bus line. It can be used for both 12 V and 24 V systems.
The circuit consists of following blocks:
Two differential line transmitters
Two differential line receivers
Interface to the CAN protocol handler
Interface to expand the number of CAN busses
Logic block including repeater function and the feedback suppression
Thermal shutdown circuit (TSD)
Short to battery treatment circuit
Due to the wide commonmode voltage range of the receiver inputs,
the AMIS42700 is able to reach outstanding levels of
electromagnetic susceptibility (EMS). Similarly, extremely low
electromagnetic emission (EME) is achieved by the excellent
matching of the output signals.
Key Features
Fully compatible with the ISO 118982 standard
www.DataSCheeertt4ifUie.cdom“Authentication on CAN Transceiver Conformance (d1.1)”
High speed (up to 1 Mbit/s in function of the bus topology)
Ideally suited for 12 V and 24 V industrial and automotive
applications
Low EME commonmodechoke is no longer required
Differential receiver with wide commonmode range (±35 V) for
high EMS
No disturbance of the bus lines with an unpowered node
Dominant timeout function
Thermal protection
Bus pins protected against transients in an automotive environment
Short circuit proof to supply voltage and ground
http://onsemi.com
PIN CONFIGURATION
NC 1
EN2 2
Text 3
Tx0 4
GND 5
GND 6
Rx0 7
Vref1 8
Rint 9
EN1 10
20 NC
19 CANH2
18 CANL2
17 GND
16 GND
15 GND
14 CANL1
13 CANH1
12 VCC
11 NC
SOIC 20
WC SUFFIX
CASE 751AQ
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
© Semiconductor Components Industries, LLC, 2009
January, 2009 Rev. 5
1
Publication Order Number:
AMIS42700/D


  ON Semiconductor Electronic Components Datasheet  

AMIS-42700 Datasheet

Dual High Speed CAN Transceiver

No Preview Available !

AMIS42700
Table 1. Technical Characteristics
Symbol
Parameter
VCANHx
VCANLx
Vo(dif)(bus_dom)
CMrange
DC voltage at pin CANH1/2
DC voltage at pin CANL1/2
Differential bus output voltage in dominant state
Input commonmode range for comparator
VCMpeak
Commonmode peak
VCMstep
Commonmode step
1. The parameters VCMpeak and VCMstep guarantee low EME.
VCC
12
Thermal
shutdown
POR
Conditions
0 < VCC < 5.25 V; no time limit
0 < VCC < 5.25 V; no time limit
42.5 W < RLT < 60 W
Guaranteed differential receiver
threshold and leakage current
See Figures 9 and 10 (Note 1)
See Figures 9 and 10 (Note 1)
clock
Min.
45
45
1.5
35
Max.
+45
+45
3
+35
Unit
V
V
V
V
1000 1000
250 250
mV
mV
CANH1 13
CANL1 14
Driver
control
Timer
Vcc/2
+
Ri(cm)
Ri(cm)
COMP
VCC
VCC
AMIS42700
Logic
Unit
VCC
VCC
Timer
Driver
control
COMP
Ri(cm)
Vcc/2
+
Ri(cm)
19 CANH2
18 CANL2
www.DataSheet4U.com
8
VREF
10 3
ENB1 Text
47
Tx0 Rx0
92
Rint ENB2
Figure 1. Block Diagram
5
6 15
GND
16 17
Typical Application
Application Description
AMIS42700 is especially designed to provide the link
between a CAN controller (protocol IC) and two physical
busses. It is able to operate in three different modes:
Dual CAN
A CANbus extender
A CANbus repeater
http://onsemi.com
2


Part Number AMIS-42700
Description Dual High Speed CAN Transceiver
Maker ON Semiconductor
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