© Semiconductor Components Industries, LLC, 2014
November, 2014 − Rev. 4
1 Publication Order Number:
AMIS−42770/D
AMIS-42770
Dual High Speed CAN
Transceiver
General Description
Controller Area Network (CAN) is a serial communication protocol,
which supports distributed real−time control and multiplexing with high
safety level. Typical applications of CAN−based networks can be found
in automotive and industrial environments.
The AMIS−42770 Dual−CAN 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)
Due to the wide common−mode voltage range of the receiver inputs,
the AMIS−42770 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 11898−2 Standard
Certified “Authentication on CAN Transceiver Conformance (d1.1)”
Wide Range of Bus Communication Speed (up to 1 Mbit/s in
Function of the Bus Topology)
Allows Low Transmit Data Rate in Networks Exceeding 1 km
Ideally Suited for 12 V and 24 V Industrial and Automotive
Applications
Low EME: Common−mode−choke is No Longer Required
Differential Receiver with Wide Common−mode Range (±35 V) for
High EMS
No Disturbance of the Bus Lines with an Un−powered Node
Prolonged Dominant Time−out Function Allowing Communication
Speeds Down to 1 kbit/s
Thermal Protection
Bus Pins Protected against Transients
Short Circuit Proof to Supply Voltage and Ground
This is a Pb−Free Device*
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
SOIC 20
IC SUFFIX
CASE 751AQ
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
ORDERING INFORMATION
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
1
20
AMIS42770
ICAW−N
AWLYYWWG
AMIS−42770
http://onsemi.com
2
ORDERING INFORMATION
Part Number Package Shipping Configuration Temperature Range
AMIS42770ICAW1G SOIC−20 300
(Pb−Free, Green)
38 / Tube −40°C to 125°C
AMIS42770ICAW1RG SOIC−20 300
(Pb−Free, Green)
1500 / Tape & Reel −40°C to 125°C
Table 1. TECHNICAL CHARACTERISTICS
Symbol Parameter Conditions Min. Max. Unit
V
CANHx
DC voltage at pin CANH1/2 0 < V
CC
< 5.25 V; no time limit −45 +45 V
V
CANLx
DC voltage at pin CANL1/2 0 < V
CC
< 5.25 V; no time limit −45 +45 V
V
o(dif)(bus_dom)
Differential bus output voltage in dominant state
42.5 W < R
LT
< 60 W
1.5 3 V
CM−range Input common−mode range for comparator Guaranteed differential receiver
threshold and leakage current
−35 +35 V
V
CM−peak
Common−Mode peak See Figures 10 and 11 (Note 1) −1000 +1000 mV
V
CM−step
Common−Mode step See Figures 10 and 11 (Note 1) −250 +250 mV
1. The parameters V
CM−peak
and V
CM−step
guarantee low EME.
AMIS−42770
GNDRx0
2x timer
clock
Logic
Unit
POR
3792
5 6 15 16 17
12
Feedback Suppression
RintTx0Text
VCC
4
CANH1
CANL1
8
Driver
control
Thermal
shutdown
COMP
+
10
13
14
ENB1
Timer
CANH2
CANL2
Driver
control
COMP
+
19
18
ENB2
Timer
Figure 1. Block Diagram
V
REF
V
CC
R
i(cm)
R
i(cm)
V
CC/2
V
CC
V
CC
V
CC
Feedback Suppression
R
i(cm)
R
i(cm)
V
CC/2
AMIS−42770
http://onsemi.com
3
TYPICAL APPLICATION
Application Description
AMIS−42770 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 CAN−bus extender
A CAN−bus repeater
Application Schematics
AMIS−42770
Text
Rx0
Tx0
7
9
2
3
10
Rint
4
CANH2
CANL1
GND
Vref
VCC
18
13
12
19
14
8
5
6 15 16 17
CANL2
CANH1
CAN BUS 2CAN BUS 1
100 nF
VBAT
5 V−reg
Figure 2. Application Diagram CAN−bus Repeater
R
LT
60 W
R
LT
60 W
C
D
EN1
EN2
AMIS−42770
Text
Rx0
Tx0
7
9
2
3
10
Rint
4
VBAT
CANH2
CANL1
GND
VCC
Vref
VCC
18
13
12
19
14
8
GND
CAN
controller
5 V−reg
5
6 15 16 17
CANL2
CANH1
CAN BUS 2CAN BUS 1
100 nF100 nF
Figure 3. Application Diagram Dual−CAN
mC
C
D
C
D
EN1
EN2
R
LT
60 W
R
LT
60 W

AMIS42770ICAW1G

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
CAN Interface IC HS CAN REPEATER
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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