On Semi's NCV7341 is a CAN transceiver that is an interface between the CAN protocol controller and the physical bus for 12V and 24V systems. The NCV7341 provides different transmission functions for the bus and different reception capabilities for the CAN controller. Single power supply is removed. After that, the NCV7341 has ideal passive characteristics, is fully compatible with the ISO 11898 standard, has a speed of up to 1Mb, and has very low electromagnetic radiation (EME). The bus connects up to 110 nodes and can be used in automotive and industrial networks. This article introduces the NCV7341. The main features, block diagrams, and application circuit diagrams for the 3V/5V CAN controller, timing characteristics test circuit diagrams, and automotive transient test circuit diagrams.
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The NCV7341 CAN transceiver is the interface between a controller area network (CAN) protocol controller and the physical bus and may be used in both 12 V and 24 V 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 NCV7341 is able to reach the outstanding levels of electromagnetic susceptibility (EMS). similar, extremely low electromagnetic emission (EME) is achieved by the excellent matching of the output signals.
The NCV7341 is a new addition to the ON Semiconductor CAN high speed transceiver family and offers the following additional features:
Main features of NCV7341:
Ideal Passive Behavior when Supply Voltage is Removed
Separate VIO Supply for Digital Interface Allowing Communication to CAN Controllers and Microcontrollers with Different Supply Levels
Fully Compatible with the ISO 11898 Standard
High Speed ​​(up to 1 Mb)
Very Low Electromagnetic Emission (EME)
VSPLIT Voltage Source for Stabilizing the Recessive Bus Level if Split Termination is Used (Further Improvement of EME)
Differential Receiver with High Common Mode Range for Electromagnetic Immunity (EMI)
Up to 110 Nodes can be Connected in Function of the Bus Topology
Transmit Data (TxD) Dominant Time out Function
Bus Pins Protected Against Transients in Automotive Environments
Bus Pins and Pin VSPLIT Short Circuit Proof to Battery and Ground
Thermally Protected
NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes
These are Pb Free Devices*
Typical application of NCV7341:
Automotive
Industrial Networks
Figure 1. Block diagram of NCV7341
Figure 2. Application circuit diagram for NCV7341 and 5V CAN controllers
Figure 3. Application circuit diagram for NCV7341 and 3V CAN controllers
Figure 4. NCV7341 basic test circuit diagram
Figure 5. NCV7341 test circuit diagram for automotive transients
Figure 6. NCV7341 Timing Characteristics Test Circuit Diagram
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