Overview
The AMIS42770ICAW1G is a Dual High Speed CAN (Controller Area Network) Transceiver produced by onsemi. This component is designed to serve as the interface between a CAN controller (protocol IC) and up to two physical bus lines, facilitating serial data interchange between different electronic units. It is fully compatible with the ISO 11898-2 standard and is certified for CAN transceiver conformance. The AMIS42770ICAW1G is particularly suited for 12 V and 24 V industrial and automotive applications, offering high electromagnetic susceptibility (EMS) and low electromagnetic emission (EME).
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| DC voltage at pin CANH1/2 | 0 < VCC < 5.25 V; no time limit | -45 | 45 | V | |
| DC voltage at pin CANL1/2 | 0 < VCC < 5.25 V; no time limit | -45 | 45 | V | |
| Differential bus output voltage in dominant state | 42.5 Ω < RLT < 60 Ω | 1.5 | 3 | V | |
| Input common-mode range for comparator | -35 | 35 | V | ||
| Supply current, no loads on digital outputs, both buses enabled | Dominant transmitted | 45 | 137.5 | 19.5 | mA |
| Power-on-reset level on VCC | 2.2 | 4.7 | V | ||
| High-level input voltage (Tx0, Text, EN1B, EN2B) | 0.7 x VCC - VCC | VCC | V | ||
| Low-level input voltage (Tx0, Text, EN1B, EN2B) | -0.3 - 0.3 x VCC | V | |||
| Storage temperature | -55 | 155 | °C | ||
| Ambient temperature | -40 | 125 | °C |
Key Features
- Fully compatible with the ISO 11898-2 standard and certified for CAN transceiver conformance.
- Wide range of bus communication speeds (up to 1 Mbit/s depending on bus topology).
- Ideally suited for 12 V and 24 V industrial and automotive applications.
- Low electromagnetic emission (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 and bus pins protected against transients.
- Short circuit proof to supply voltage and ground.
- Pb-free device.
Applications
The AMIS42770ICAW1G is designed for use in various applications, particularly in:
- Automotive systems: It supports the high safety and reliability requirements of automotive networks.
- Industrial environments: Suitable for industrial control systems and automation where robust communication is necessary.
- Dual CAN bus systems: Can operate as a dual CAN transceiver, a CAN bus extender, or a CAN bus repeater.
- Networks exceeding 1 km: Allows low transmit data rates in extended networks.
Q & A
- What is the primary function of the AMIS42770ICAW1G?
The AMIS42770ICAW1G serves as the interface between a CAN controller and up to two physical bus lines, facilitating serial data interchange between different electronic units.
- What are the key standards it complies with?
It is fully compatible with the ISO 11898-2 standard and certified for CAN transceiver conformance.
- What are the typical applications of this component?
It is typically used in automotive and industrial environments.
- What is the maximum communication speed supported by this transceiver?
Up to 1 Mbit/s depending on the bus topology.
- How does it handle electromagnetic susceptibility and emission?
It offers high electromagnetic susceptibility (EMS) and low electromagnetic emission (EME), eliminating the need for a common-mode choke.
- What kind of protection does it offer against faults?
It includes thermal protection, bus pins protected against transients, and is short circuit proof to supply voltage and ground.
- Can it operate in different modes?
Yes, it can operate as a dual CAN transceiver, a CAN bus extender, or a CAN bus repeater.
- How does it handle un-powered nodes on the bus?
It does not disturb the bus lines with an un-powered node.
- What is the temperature range for this component?
The ambient temperature range is -40°C to 125°C, and the storage temperature range is -55°C to 155°C.
- Is the AMIS42770ICAW1G a Pb-free device?
Yes, it is a Pb-free device.
