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AMIS-42670 参数 Datasheet PDF下载

AMIS-42670图片预览
型号: AMIS-42670
PDF下载: 下载PDF文件 查看货源
内容描述: 高速CAN收发器 [High-Speed CAN Transceiver]
分类和应用:
文件页数/大小: 12 页 / 626 K
品牌: AMI [ AMI SEMICONDUCTOR ]
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AMIS-42670 High-Speed CAN Transceiver
For Long Networks
Data Sheet
1.0 General Description
The AMIS-42670 CAN transceiver is the interface between a controller area network (CAN) protocol controller and the physical bus and
may be used in both 12V and 24V systems. The transceiver provides differential transmit capability to the bus and differential receive
capability to the CAN controller. Due to the wide common-mode voltage range of the receiver inputs, the AMIS-42670 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.
The AMIS-42670 is the industrial version of the AMIS-30660 and primarily intended for applications where long network lengths are
mandatory. Examples are elevators, in-building networks, process control and trains. To cope with the long bus delay the
communication speed needs to be low. AMIS-42670 allows low transmit data rates down 10 Kbit/s or lower.
2.0 Key Features
Fully compatible with the ISO 11898-2 standard
Certified “Authentication on CAN Transceiver Conformance (d1.1)”
Wide range of bus communication speed (0 up to 1 Mbit/s)
Allows low transmit data rate in networks exceeding 1 km
Ideally suited for 12V and 24V industrial and automotive applications
Low electromagnetic emission (EME) common-mode choke is no longer required
Differential receiver with wide common-mode range (+/- 35V) for high EMS
No disturbance of the bus lines with an un-powered node
Thermal protection
Bus pins protected against transients
Silent mode in which the transmitter is disabled
Short circuit proof to supply voltage and ground
Logic level inputs compatible with 3.3V devices
3.0 Technical Characteristics
Table 1: Technical Characteristics
Symbol
Parameter
V
CANH
DC voltage at pin CANH
V
CANL
DC voltage at pin CANL
V
i(dif)(bus_dom)
Differential bus output voltage in dominant state
t
pd(rec-dom)
Propagation delay TxD to RxD
t
pd(dom-rec)
Propagation delay TxD to RxD
C
M-range
Input common-mode range for comparator
V
CM-peak
V
CM-step
Common-mode peak
Common-mode step
Conditions
0 < V
CC
< 5.25V; no time limit
0 < V
CC
< 5.25V; no time limit
42.5Ω < R
LT
< 60Ω
See Figure 7
See Figure 7
Guaranteed differential receiver threshold and
leakage current
See Figures 8 and 9 (Notes)
See Figures 8 and 9 (Notes)
Min.
-45
-45
1.5
70
100
-35
-500
-150
Max.
+45
+45
3
245
245
+35
500
150
Unit
V
V
V
ns
ns
V
mV
mV
Note: The parameters V
CM-peak
and V
CM-step
guarantee low electromagnetic emission.
4.0 Ordering Information
Ordering Code (Tubes)
0ICAH-002-XTD
Ordering Code (Tape)
0ICAH-002-XTP
Marketing Name
AMIS 42670NGA
Package
SOIC-8 GREEN
Temp. Range
-40°C…125°C
AMI Semiconductor
– October 07, Rev. 1.0
www.amis.com
Specifications subject to change without notice
1