Overview
The NCV7381C, produced by onsemi, is a high-temperature single-channel FlexRay transceiver that complies with the FlexRay Electrical Physical Layer Specification Rev. 3.0.1. This component is designed for automotive and industrial applications, enabling communication at speeds of up to 10 Mbit/s. It features differential transmit and receive capabilities, connecting a FlexRay communication medium to a protocol controller and a host. The NCV7381C is optimized for nodes permanently connected to a car battery and offers excellent EMC and ESD performance.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Battery Voltage (VBAT) | -0.3 | - | 50 | V |
| Supply Voltage (VCC) | -0.3 | - | 5.5 | V |
| Supply Voltage for VIO (VIO) | -0.3 | - | 5.5 | V |
| Current Consumption in Normal-Power Mode | - | 0.65 | 1.25 | mA |
| Current Consumption in Low-Power Mode | - | - | 75 | μA |
| Differential Voltage (uBP - uBM) in Active Mode | 600 | - | 2000 | mV |
| Receiver Threshold for Detecting Data_0 | -300 | - | -150 | mV |
| Receiver Threshold for Detecting Data_1 | 150 | - | 300 | mV |
| Thermal Warning Level (TJW) | 125 | 140 | 155 | °C |
| Thermal Shutdown Level (TJSD) | 160 | 170 | 190 | °C |
Key Features
- Compliant with FlexRay Electrical Physical Layer Specification Rev. 3.0.1
- FlexRay Transmitter and Receiver for communication up to 10 Mbit/s
- Support for 60 ns Bit Time
- FlexRay Low-Power Mode Receiver for Remote Wakeup Detection
- AEC-Q100 Qualified and PPAP Capable
- Bus Driver Voltage Regulator Control
- Bus Driver – Bus Guardian Interface
- Bus Driver Logic Level Adaptation
- Bus Driver Remote Wakeup
- Halogen Free/BFR Free and RoHS Compliant
Applications
The NCV7381C is primarily used in automotive and industrial environments where reliable and high-speed communication is crucial. It is suitable for applications such as:
- Automotive networking systems
- Industrial control systems
- High-reliability communication networks
- Systems requiring compliance with FlexRay Electrical Physical Layer Specification
Q & A
- What is the maximum communication speed of the NCV7381C?
The NCV7381C can communicate at speeds of up to 10 Mbit/s. - What is the operating voltage range for VBAT?
The operating voltage range for VBAT is from 5.5 V to 50 V. - What are the thermal warning and shutdown levels for the NCV7381C?
The thermal warning level is between 125°C to 155°C, and the thermal shutdown level is between 160°C to 190°C. - Is the NCV7381C compliant with automotive standards?
Yes, the NCV7381C is AEC-Q100 Qualified and PPAP Capable. - What are the key features of the NCV7381C's transmitter and receiver?
The transmitter and receiver support communication up to 10 Mbit/s, with support for 60 ns Bit Time and low-power mode receiver for remote wakeup detection. - What is the current consumption in normal-power mode?
The current consumption in normal-power mode is typically 0.65 mA, with a maximum of 1.25 mA. - What is the purpose of the bus guardian interface?
The bus guardian interface is used to control the transmitter and ensure proper bus operation. - Is the NCV7381C RoHS compliant?
Yes, the NCV7381C is Halogen Free/BFR Free and RoHS Compliant. - What are the recommended external components for the application diagram?
The recommended external components include decoupling capacitors (CVBAT, CVCC, CVIO), pull-up and pull-down resistors (RWAKE1, RWAKE2), bus termination resistors (RBUS1, RBUS2), and a common-mode stabilizing capacitor (CBUS). - How does the NCV7381C handle remote wakeup events?
The NCV7381C has a low-power mode receiver for remote wakeup detection, allowing it to wake up from a low-power state when a remote event is detected.
