AMIS-42770 반도체 회로 부품 판매점
Dual High Speed CAN Transceiver
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 ON Semiconductor |
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.
http://onsemi.com
SOIC 20
IC SUFFIX
CASE 751AQ
20
AMIS42770
ICAW−N
AWLYYWWG
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
November, 2014 − Rev. 4
1
Publication Order Number:
AMIS−42770/D
AMIS−42770
ORDERING INFORMATION
Part Number
AMIS42770ICAW1G
AMIS42770ICAW1RG
Package
SOIC−20 300
(Pb−Free, Green)
SOIC−20 300
(Pb−Free, Green)
Shipping Configuration
38 / Tube
1500 / Tape & Reel
Temperature Range
−40°C to 125°C
−40°C to 125°C
Table 1. TECHNICAL CHARACTERISTICS
Symbol
Parameter
VCANHx
VCANLx
Vo(dif)(bus_dom)
CM−range
DC voltage at pin CANH1/2
DC voltage at pin CANL1/2
Differential bus output voltage in dominant state
Input common−mode range for comparator
VCM−peak
Common−Mode peak
VCM−step
Common−Mode step
1. The parameters VCM−peak and VCM−step guarantee low EME.
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 10 and 11 (Note 1)
See Figures 10 and 11 (Note 1)
VCC
12
Min.
−45
−45
1.5
−35
Max.
+45
+45
3
+35
Unit
V
V
V
V
−1000
−250
+1000
+250
mV
mV
Thermal
shutdown
POR
2 x timer
clock
13
CANH1
14
CANL1
Driver
control
Timer
Ri(cm)
VCC−/2 +
Ri(cm)
COMP
VCC
VCC
AMIS−42770
Logic
Unit
VCC
Timer
Driver
control
19
CANH2
18
CANL2
COMP
VCC
Ri(cm)
+ VC−C/2
Ri(cm)
8
VREF
10
ENB1
3 47 9
Text Tx0 Rx0 Rint
Figure 1. Block Diagram
2
ENB2
5 6 15 16 17
GND
http://onsemi.com
2
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( onsemi )
AMIS-42770 transceiver
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