Overview
The NCV7344AMW3R2G is a high-speed, low-power CAN (Controller Area Network) and CAN FD (Flexible Data Rate) transceiver produced by onsemi. This component serves as the interface between a CAN protocol controller and the physical bus, providing differential transmit and receive capabilities. It is designed to support data rates beyond 1 Mbps, making it suitable for various HS-CAN networks, particularly in nodes requiring low-power modes with wake-up capability via the CAN bus.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC (Power Supply Voltage) | 4.75 | 5 | 5.25 | V | |
| ICC (Supply Current) - Dominant | VTxD = Low | 20 | 45 | 70 | mA |
| ICC (Supply Current) - Recessive | VTxD = High | 1.9 | 5 | 10 | mA |
| ICCS (Supply Current in Standby Mode) | TJ ≤ 100°C | 15 | μA | ||
| VIO (Supply Voltage on Pin VIO) - NCV7344-3 Version | 2.8 | 5.5 | V | ||
| Vo(dom)(CANH) (Dominant Output Voltage at Pin CANH) | VTxD = 0 V; t < tdom(TxD); 50 Ω < RLT < 65 Ω | 2.75 | 3.5 | 4.5 | V |
| td(TxD-BUSon) (Delay TxD to Bus Active) | 75 | ns | |||
| td(BUSon-RxD) (Delay Bus Active to RxD) | 24 | ns |
Key Features
- Compatible with ISO 11898-2:2016
- Specification for Loop Delay Symmetry up to 5 Mbps
- VIO pin on NCV7344-3 Version allowing direct interfacing with 3 V to 5 V microcontrollers
- Very low current standby mode with wake-up via the CAN bus
- Low Electromagnetic Emission (EME) and high Electromagnetic Immunity
- Very low EME without Common-mode (CM) Choke
- No disturbance of the bus lines with an un-powered node
- Transmit Data (TxD) Dominant Timeout Function
- Under all supply conditions, the chip behaves predictably
- Very high ESD robustness of bus pins, >8 kV System ESD Pulses
- Thermal Protection
- Bus Pins Short Circuit Proof to Supply Voltage and Ground
- Bus Pins Protected Against Transients in an Automotive Environment
- Pb-free Devices
- Wettable Flank Package for Enhanced Optical Inspection
- AEC-Q100 Qualified and PPAP Capable
Applications
- Automotive
- Industrial Networks
Q & A
- What is the primary function of the NCV7344AMW3R2G?
The NCV7344AMW3R2G is a CAN and CAN FD transceiver that serves as the interface between a CAN protocol controller and the physical bus, providing differential transmit and receive capabilities.
- What are the key specifications for the power supply voltage (VCC)?
The power supply voltage (VCC) ranges from 4.75 V to 5.25 V.
- What is the supply current in normal mode for dominant and recessive states?
The supply current in normal mode is 20 mA to 70 mA for dominant states and 1.9 mA to 10 mA for recessive states.
- What is the standby current consumption?
The standby current consumption is typically 10 μA to 15 μA.
- Is the NCV7344AMW3R2G compatible with ISO 11898-2:2016?
Yes, the NCV7344AMW3R2G is compatible with ISO 11898-2:2016.
- What are the key features related to electromagnetic compatibility?
The device features low Electromagnetic Emission (EME) and high Electromagnetic Immunity, with very low EME without a Common-mode (CM) Choke.
- How does the standby mode work?
In standby mode, both the transmitter and receiver are disabled, and a very low-power differential receiver monitors the bus lines for CAN bus activity. When a wake-up request is detected, the device transitions out of standby mode.
- What is the ESD robustness of the bus pins?
The bus pins have very high ESD robustness, >8 kV System ESD Pulses.
- Are the bus pins protected against transients in an automotive environment?
Yes, the bus pins are protected against transients in an automotive environment.
- Is the NCV7344AMW3R2G Pb-free?
Yes, the NCV7344AMW3R2G is a Pb-free device.
- What are the typical applications for the NCV7344AMW3R2G?
The typical applications include automotive and industrial networks.
