Overview
The SN65HVD234-Q1 is a 3.3-V CAN (Controller Area Network) transceiver designed by Texas Instruments for use in automotive and other harsh environment applications. This device is part of the SN65HVD23x-Q1 family, which includes the SN65HVD233-Q1 and SN65HVD235-Q1. It operates from a single 3.3-V supply, making it ideal for systems that also use a 3.3-V microcontroller, thus reducing the need for additional components or a separate power supply. The SN65HVD234-Q1 is compatible with the ISO 11898-2 standard, allowing interoperability in mixed networks with 5-V and 3.3-V CAN transceivers.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC (D) - 8 pins |
| Operating Temperature Range (°C) | -40 to 125 |
| Supply Voltage (V) | 3 to 3.6 |
| Bus Fault Voltage (V) | -36 to 36 |
| Signaling Rate (max) (Mbps) | 1 |
| Common-Mode Voltage (V) | -7 to 12 |
| Low-Power Mode | Ultralow-Current Sleep Mode |
| ESD Protection (HBM) | Bus Pins: ±12,000 V, Other Pins: ±3,000 V |
| ESD Protection (CDM) | ±1,000 V |
Key Features
- Compatible with ISO 11898-2 standard
- Qualified for automotive applications (AEC-Q100)
- Single 3.3-V supply voltage
- Bit rates up to 1 Mbps
- Bus pins fault protection up to ±36 V
- High input impedance allows for 120 nodes
- LVTTL I/Os are 5-V tolerant
- Adjustable driver slew rates for improved emissions performance
- Unpowered node does not disturb the bus
- Low-current standby mode, 200-µA (typical)
- Ultralow-current sleep mode with 50-nA typical current consumption
- Thermal shutdown protection
- Power up and down with glitch-free bus inputs and outputs
- High input impedance with low VCC
- Monotonic output during power cycling
Applications
- In-vehicle networking
- Advanced Driver-Assistance Systems (ADAS)
- Body electronics and lighting
- Infotainment and cluster systems
- Hybrid, electric, and powertrain systems
- Applications in accordance with CAN Bus standards such as NMEA 2000 and SAE J1939
Q & A
- What is the operating temperature range of the SN65HVD234-Q1?
The operating temperature range is -40°C to 125°C.
- What is the supply voltage for the SN65HVD234-Q1?
The supply voltage is 3 to 3.6 V.
- What is the maximum signaling rate of the SN65HVD234-Q1?
The maximum signaling rate is 1 Mbps.
- Does the SN65HVD234-Q1 have ESD protection?
- What are the key protection features of the SN65HVD234-Q1?
The device features crosswire protection, overvoltage protection on CANH and CANL pins up to ±36 V, loss-of-ground protection, overtemperature (thermal shutdown) protection, and common-mode transient protection of ±100 V.
- How does the SN65HVD234-Q1 handle low-power modes?
The device enters an ultralow-current sleep mode when a low logic level is applied to the EN pin, with a typical current consumption of 50 nA.
- Is the SN65HVD234-Q1 compatible with other CAN transceivers?
- What are some common applications for the SN65HVD234-Q1?
- How does the SN65HVD234-Q1 adjust its driver slew rates?
The driver slew rates can be adjusted by connecting a resistor between the RS pin and ground, with the slope being proportional to the output current of the pin.
- Does the SN65HVD234-Q1 support glitch-free power cycling?
