MAX2421EAI+

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Transceiver
Protocol:	--
Number of Drivers/Receivers:	--
Duplex:	--
Data Rate:	--
Voltage - Supply:	2.7 V ~ 4.8 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	28-SSOP (0.209", 5.30mm Width)
Supplier Device Package:	28-SSOP
Base Part Number:	MAX2421

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Introduction to MAX2421EAI+

The MAX2421EAI+ is a UltraxCMOS™ transceiver solution for full-duplex, differential I/O CAN transceiving up to 250 kbps. This transceiver offers a high level of integration and performance, with simplistic connections and interfacing to a variety of popular microcontrollers, and is suitable for use within a number of industrial and automotive applications.

Features of MAX2421EAI+

The MAX2421EAI+ comes with a number of featured advantages and specifications, enabling it to handle applications within the industrial and automotive markets. It has extended operating temperature range of -40°C to 85°C, as well as tiny package sizes of 2mm x 3mm DFN-8, 3mm x 4mm 16-TQFN, and 3.3mm x 5mm 16-TDFN. The transceiver features low signal distortion due to its +10 dB common mode range, compatible with the local bus application, and its immunity to EMI by 30 kV contact discharge and 15 kV ESD protection. Further features include peak voltage being protected to 10 V, comformal coating for robustness, and noise suppression with great signal quality.

Fields of Application for MAX2421EAI+

The MAX2421EAI+ can be applied to a variety of industrial and automotive fields. Industrial applications would include industrial control to a variety of sensor and actuator networks across a number of industries, robotics, and real-time Ethernet-type applications. Within the automotive field, the transceiver can be used for CAN bus monitoring, such as within vehicles and its subsystems, airbag control systems, engine control modules and powertrain networking, body control networking, and gateway systems. Other automotive applications include motor control systems and passenger control systems.

Working Principle of MAX2421EAI+

The MAX2421EAI+ is a full-duplex, differential I/O CAN transceiver that functions by using two signal lines in order to send and receive CAN messages at rates up to 250 kbps. Each signal line consists of two wires, one of which transmits the signal, and the other wire is for the reception (differential receiving) of the signal.The transceiver is connected between the microcontroller (MCU) and the external CAN bus; thus, the CAN message from the CAN bus is received as a differential voltage at the receiver input of the transceiver, and the transceived signal is coupled to the MCU. The MAX2421EAI+ provides many necessary functions, such as loss of arbitration detection, local transmit inhibit input, fault protection, and bi-directional bus pin protection. Moreover, it has fault-tolerant wake up circuitry and wake up signals connected to the local MCU and to the external CAN lines.

Conclusion

In conclusion, the MAX2421EAI+ is a UltraxCMOS™ transceiver solution for full-duplex, differential I/O CAN transceiving up to 250 kbps. It features extended operating temperature range, and tiny package sizes, as well as low signal distortion and immunity to EMI. Further features include peak voltage being protected to 10 V, comformal coating for robustness, and excellent noise suppression with great signal quality. The transceiver is able to be applied to a variety of industrial and automotive applications. Working within the two signal line principle, the transceiver is connected between the microcontroller (MCU) and the external CAN bus, providing necessary functions and features, such as loss of arbitration detection, local transmit inhibit input, fault protection, bi-directional bus pin protection, and fault-tolerant wake up circuitry.

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