Overview
The AMIS41682CANM1RG, produced by onsemi, is a fault-tolerant CAN (Controller Area Network) transceiver designed to serve as an interface between the CAN protocol controller and the physical wires of the CAN bus. This device is optimized for low-speed in-car communication applications, particularly in passenger cars, and supports baud rates up to 125 kB. It is part of the AMIS-41682 and AMIS-41683 series, with the AMIS-41683 variant offering a true 3.3 V digital interface to the CAN controller.
The AMIS41682CANM1RG is built using I2T100 technology, which allows for the coexistence of high-voltage analog circuitry and digital functionality on the same chip. This component is fully compatible with the ISO11898-3 standard and is AEC-Q100 qualified, ensuring reliability in automotive environments.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC | Supply Voltage | 4.75 | 5.0 | 5.25 | V |
| VBAT | Battery Supply Voltage | 5 | - | 36 | V |
| ICC | Supply Current (Normal Operating Mode) | 1 | 3.7 | 6.3 | mA |
| ICC | Supply Current (Dominant State, No Load) | 1 | 8 | 12 | mA |
| TJ | Junction Temperature | -40 | - | 150 | °C |
| VO(reces) | Recessive Output Voltage on Pin CANH/CANL | VCC - 0.2 | - | 0.2 | V |
| VO(dom) | Dominant Output Voltage on Pin CANH/CANL | VCC - 1.4 | - | 1.4 | V |
| IO(CANH/CANL) | Output Current on Pin CANH/CANL | -110/-45 | -80/80 | -1.6/1.6 | mA |
Key Features
- Fully Compatible with ISO11898-3 Standard: Ensures compliance with industry standards for CAN communication.
- Optimized for In-Car Low-Speed Communication: Designed for low-speed applications up to 125 kB in passenger cars.
- Differential Transmit and Receive Capability: Provides differential transmit and receive functionality to the CAN bus and controller.
- Automatic Switching to Single-Wire Mode: In the event of bus failures, the device automatically switches to single-wire mode to maintain communication.
- Integrated Receiver Filters and Slope Control: Reduces electromagnetic emission (EME) and ensures good electromagnetic susceptibility (EMS).
- Wake-Up and Power-On Flag: Supports wake-up and power-on flag functionalities through the ERR pin.
- Thermal Shutdown and Protection: Includes thermal shutdown and protection mechanisms to prevent overheating.
- AEC-Q100 Qualified: Meets automotive reliability standards, ensuring robust performance in automotive environments.
Applications
The AMIS41682CANM1RG is primarily used in automotive applications, particularly in passenger cars, for low-speed CAN communication. It is suitable for various in-car systems that require reliable and fault-tolerant communication, such as:
- In-car multiplex networks
- Automotive control systems
- Vehicle diagnostics and monitoring systems
- Infotainment and navigation systems
Q & A
- What is the primary function of the AMIS41682CANM1RG?
The AMIS41682CANM1RG serves as a fault-tolerant CAN transceiver, acting as an interface between the CAN protocol controller and the physical wires of the CAN bus.
- What is the maximum baud rate supported by this device?
The device supports baud rates up to 125 kB.
- Is the AMIS41682CANM1RG compatible with industry standards?
Yes, it is fully compatible with the ISO11898-3 standard.
- What happens in case of bus failures?
In the event of bus failures, the device automatically switches to single-wire mode to maintain communication.
- What is the operating temperature range of the AMIS41682CANM1RG?
The device operates within a junction temperature range of -40°C to 150°C.
- Does the AMIS41682CANM1RG support wake-up and power-on functionalities?
Yes, it supports wake-up and power-on flag functionalities through the ERR pin.
- Is the AMIS41682CANM1RG AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified, ensuring reliability in automotive environments.
- What is the typical supply current in normal operating mode?
The typical supply current in normal operating mode is 3.7 mA.
- How many nodes can be connected using this device?
Up to 32 nodes can be connected.
- What is the purpose of the integrated receiver filters?
The integrated receiver filters help in reducing electromagnetic emission (EME) and ensuring good electromagnetic susceptibility (EMS).
