Overview
The PCA82C251/N3,112, produced by NXP USA Inc., is a CAN (Controller Area Network) transceiver designed to serve as the interface between a CAN protocol controller and the physical bus. This component is primarily intended for high-speed applications, particularly in automotive and industrial environments, such as trucks and buses. It is fully compatible with the ISO 11898-2 standard for 24 V systems.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC supply voltage | 4.5 | 5.5 | V | ||
| ICC supply current (Standby mode) | 275 | μA | |||
| Maximum transmission speed | non-return-to-zero | 1 | MBd | ||
| VCAN CANH, CANL input/output voltage | -36 | 36 | V | ||
| Vdiff differential bus voltage | 1.5 | 3.0 | V | ||
| tPD propagation delay (High-speed mode) | 50 | ns | |||
| Tamb ambient temperature | -40 | 125 | °C |
Key Features
- Fully compatible with the ISO 11898-2 standard for 24 V systems.
- Slope control to reduce Radio Frequency Interference (RFI).
- Thermally protected and short-circuit proof to battery and ground in 24 V powered systems.
- Low-current Standby mode; an unpowered node does not disturb the bus lines.
- Supports up to 110 nodes on the bus.
- High speed (up to 1 MBd) and high immunity against electromagnetic interference.
Applications
The PCA82C251/N3,112 is primarily used in high-speed applications such as:
- Trucks and buses, where high-speed CAN communication is required.
- Automotive and industrial systems that require reliable and high-speed data transmission.
Q & A
- What is the PCA82C251/N3,112 used for?
The PCA82C251/N3,112 is used as the interface between a CAN protocol controller and the physical bus in automotive and industrial applications.
- What is the maximum transmission speed of the PCA82C251/N3,112?
The maximum transmission speed is up to 1 MBd.
- Is the PCA82C251/N3,112 compatible with any specific standards?
Yes, it is fully compatible with the ISO 11898-2 standard for 24 V systems.
- What are the key features of the PCA82C251/N3,112?
Key features include slope control to reduce RFI, thermal protection, short-circuit proofing, low-current Standby mode, and high immunity against electromagnetic interference.
- How many nodes can be connected using the PCA82C251/N3,112?
Up to 110 nodes can be connected.
- What is the operating temperature range of the PCA82C251/N3,112?
The operating temperature range is from -40°C to +125°C.
- Is the PCA82C251/N3,112 still in production?
No, the PCA82C251/N3,112 is obsolete and no longer manufactured.
- What type of protection does the PCA82C251/N3,112 have against short circuits?
The device has a current-limiting circuit that protects the transmitter output stage against short-circuits to positive and negative battery voltage.
- How does the PCA82C251/N3,112 handle thermal issues?
If the junction temperature exceeds approximately 160°C, the limiting current of both transmitter outputs is decreased to reduce power dissipation and lower the chip temperature.
- What is the typical supply current in Standby mode?
The typical supply current in Standby mode is 275 μA.
